[Grazing experiment phytoplankton] - Shipboard grazing experiment phytoplankton data from the mid-Atlantic Bight Shelfbreak on R/V Neil Armstrong cruise AR29, R/V Ronald H. Brown cruise RB1904 and R/V Thomas G. Thompson cruise TN368 in April 2018 and May/July2019 (Collaborative Research:  Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications)

Summary:
As part of the Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array (SPIROPA) Project, twelve grazing experiments were conducted during each of three research cruises (April of 2018, and May and July of 2019) in the Middle Atlantic Bight to estimate community zooplankton grazing and net phytoplankton growth rates. Stations where the experiments were conducted were strategically located in one of three key cross-shelf water mass regimes: (1) at the shelfbreak front, (2) inshore of the front in continental shelf water and (3) offshore of the front in slope water. Grazing incubations were performed on water sampled from the chlorophyll maximum, when present. The experiments included two "treatments": 1. whole water incubations and incubations on the <200 µm fraction of the plankton commuinity.  All experiments were run in triplicate for 24 hours in flow-thru deck incubators and consisted of a dark treatment incubation and a light treatment incubation at a simulated 30% E0.

cdm_data_type = Other
VARIABLES:
Exp_and_count_no (unitless)
Sample_ID_Number (unitless)
Sample_ID (unitless)
Cruise (unitless)
latitude (degrees_north)
longitude (degrees_east)
Experiment_No (unitless)
Date_Collected (unitless)
Station (unitless)
Depth_M (meters)
Water_Mass_Region (unitless)
Micro_or_WW (unitless)
Treatment_Replicate (unitless)
Date_time_start (unitless)
Date_time_stop (unitless)
delta_t_day (day)
Original_Volume_L (Liters)
... (6 more variables)


[Grazing experiment zooplankton] - Shipboard grazing experiment zooplankton data from the mid-Atlantic Bight Shelfbreak on R/V Neil Armstrong cruise AR29, R/V Ronald H. Brown cruise RB1904 and R/V Thomas G. Thompson cruise TN368 in April 2018 and May/July2019 (Collaborative Research:  Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications)

Summary:
As part of the Shelfbreak Productivity Interdisciplinary Research Operation at the Pioneer Array (SPIROPA) Project, twelve grazing experiments were conducted during each of three research cruises (April of 2018, and May and July of 2019) in the Middle Atlantic Bight to estimate community zooplankton grazing and net phytoplankton growth rates. Stations where the experiments were conducted were strategically located in one of three key cross-shelf water mass regimes: (1) at the shelfbreak front, (2) inshore of the front in continental shelf water and (3) offshore of the front in slope water. Grazing incubations were performed on water sampled from the chlorophyll maximum, when present. The experiments included two "treatments": 1. whole water incubations and incubations on the <200 µm fraction of the plankton communinity.  All experiments were run in triplicate for 24 hours in flow-thru deck incubators and consisted of a dark treatment incubation and a light treatment incubation at a simulated 30% E0.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
latitude (degrees_north)
longitude (degrees_east)
Date_Collected (unitless)
Station (unitless)
Depth_M (meters)
Water_Mass_Region (unitless)
Date_time_start (unitless)
Date_time_stop (unitless)
delta_t_day (day)
Experiment_No (unitless)
Treatment (unitless)
Replicate (unitless)
copepod_nauplii (animals/cubic meter)
Oithona_copepodite (animals/cubic meter)
calanoid_copepodite (animals/cubic meter)
Acartia_female (animals/cubic meter)
... (34 more variables)


[Grazing saturation culture experiments using single prey (M.pusilla) and predator (O.danica)] - Flow cytometric counts from grazing saturation culture experiment using single prey (Micromonas pusilla) and predator (Ochromonas danica) (EAGER: A Saturation Approach to Microzooplankton Grazing Rate Determination)

Summary:
Flow cytometric counts of the picoeukaryote, Micromonas pusilla and 2 um green fluorescent bead abundance (Ochromonas danica was used as the predator) in laboratory-culture experiments to demonstrate the saturation approach.

cdm_data_type = Other
VARIABLES:
Date (unitless)
Experiment (unitless)
Duration (day (d))
Beads_T0 (beads per milliliter (beads/ml))
Micromonas_T0 (cells per milliliter (cells/ml))
Beads_T24 (beads per milliliter (beads/ml))
Micromonas_T24 (cells per milliliter (cells/ml))


[Green Crab Density 1973 to 2021] - Green Crab Density for Multiple Sites in the Gulf of Maine for 1973, 2003, 2017-2018 and 2021 (Local adaptation and the evolution of plasticity under predator invasion and warming seas: consequences for individuals, populations and communities)

Summary:
The impact of invasive predators during the early stages of invasion is often variable in space and time. Such variation is expected to initially favor plasticity in prey defenses but fixed defenses as invaders become established. This dataset contains green crab density (Carcinus maenas) data for multiple sites throughout the Gulf of Maine that were collected in 1973, 2003, 2017-2018 and 2021. These data were used to examine historical changes in the latitudinal distribution of green crabs and their potential role in shaping spatiotemporal changes in snail (Littorina obtusata) shell thickness and thickness plasticity.

cdm_data_type = Other
VARIABLES:
Site (unitless)
Year (unitless)
latitude (degrees_north)
longitude (degrees_east)
Month (unitless)
Green_Crab_Density (number per person hour)


[Green Crab Density] - Green crab (Carcinus maenas) density at rocky intertidal sites determined at 8 sites in the Gulf of Maine from April 2019 to December 2021 (Local adaptation and the evolution of plasticity under predator invasion and warming seas: consequences for individuals, populations and communities)

Summary:
This dataset describes green crab (Carcinus maenas) density at rocky intertidal sites in the northern (4 sites) and southern (4 sites) Gulf of Maine.

cdm_data_type = Other
VARIABLES:
YEAR (unitless)
MONTH (unitless)
REGION (unitless)
SITE_NAME (unitless)
LATITUDE (degrees_north)
longitude (degrees_east)
Green_Crab_Density (number of crabs)


[Greenland experiment: microbial enzymatic activities] - Microbial enzymatic activities from seawater and from particle-associated seawater communities from Greenland, August 2015 (Patterns of activities project) (Latitudinal and depth-related contrasts in enzymatic capabilities of pelagic microbial communities: Predictable patterns in the ocean?)

Summary:
Bacterial activity as measured by hydrolysis rates from unfiltered seawater and particle-associated communities collected near shore in northeastern Greenland in August 2015.

cdm_data_type = Other
VARIABLES:
trip_id (unitless)
sample_type (unitless)
filter_um (nanomol monomer/liter/hour)
fluorophore (unitless)
station (unitless)
cast (unitless)
depth_id (Depth, unitless)
depth (m)
substrate (unitless)
timepoint (unitless)
time_elapsed_hr (hours)
rep1_rate (nanomol monomer/liter/hour)
rep2_rate (nanomol monomer/liter/hour)
rep3_rate (nanomol monomer/liter/hour)
rate_average (nanomol monomer/liter/hour)
rate_std_dev (nanomol monomer/liter/hour)


[Gridded in-situ oxygen profiles] - Gridded in-situ oxygen profiles from glider deployments in the San Pedro Channel, CA in 2013 and 2014 (Collaborative Research: Use of Triple Oxygen Isotopes and O2/Ar to constrain Net/Gross Oxygen Production during upwelling and non-upwelling periods in a Coastal Setting)

Summary:
Gridded in-situ oxygen profiles from glider deployments in the San Pedro Channel, CA in 2013 and 2014.

cdm_data_type = Other
VARIABLES:
BINID (unitless)
DATENUM_GMT (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
YEAR (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
OXYGEN (millimoles per cubic meter (mmol m^-3))


[Gridded in-situ profiles] - Gridded in-situ profiles from glider deployments in the San Pedro Channel, CA in 2013 and 2014 (Collaborative Research: Use of Triple Oxygen Isotopes and O2/Ar to constrain Net/Gross Oxygen Production during upwelling and non-upwelling periods in a Coastal Setting)

Summary:
This dataset includes chlorophyll a fluorescence and water temperature from gridded in-situ profiles from a slocum glider deployed between March and July in 2013 and 2014 in the San Pedro Channel, located in the Southern California Bight off the coast of Los Angeles.

cdm_data_type = Other
VARIABLES:
BINID (unitless)
DATENUM_GMT (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
YEAR (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
CHL (milligrams per meter cubed (mg/m^3))
TEMP (Temperature, degrees Celsius (C))


[Gross et al.: Pocillopora verrucosa colony growth] - P. verrucosa growth data used to parameterize growth-rate curve (Collaborative Research: Ocean Acidification and Coral Reefs: Scale Dependence and Adaptive Capacity)

Summary:
P. verrucosa growth data used to parameterize growth-rate curve acquired at the Moorea LTER site, 17.5 S 149.8 W depth 10m between 2011 and 2017

cdm_data_type = Other
VARIABLES:
site (unitless)
ID (unitless)
year (unitless)
d_begin (meter (m))
d_end (meter (m))
coral (proportion)
lat_max (Latitude, decimal degrees)
latitude (degrees_north)
lon_max (Longitude, decimal degrees)
longitude (degrees_east)


[grouper-lionfish refuge competition expt] - Results of lab experiment examining competition for refuge space between invasive lionfish and Nassau grouper; conducted at Lee Stocking Island, Bahamas from 2009-2012 (Lionfish Invasion project) (Ecological Release and Resistance at Sea: Invasion of Atlantic Coral Reefs by Pacific Lionfish)

Summary:
Results of lab experiment examining competition for refuge space between invasive lionfish and Nassau grouper; conducted at Lee Stocking Island, Bahamas from 2009-2012.

cdm_data_type = Other
VARIABLES:
site (text)
latitude (degrees_north)
longitude (degrees_east)
replicate (integer)
location (code)
target_size_ratio (dimensionless)
actual_size_ratio (dimensionless)
len_lionfish (cm)
len_grouper (cm)
date (unitless)
time2 (Time, HHMM)
lionfish_to_refuge_dist_scaled (cm)
lionfish_to_refuge_dist_actual (cm)
grouper_to_refuge_dist_scaled (cm)
grouper_to_refuge_dist_actual (cm)
lionfish_to_grouper_dist_scaled (cm)
lionfish_to_grouper_dist_actual (cm)
notes_lionfish (text)
notes_grouper (text)


[Groves Creek 'Omits] - Metagenomic, metatranscriptomics and 16S rRNA gene sequence data from diel sampling at Groves Creek Marsh, Skidaway Island, GA during July 2014 (Collaborative Research: Marine priming effect - molecular mechanisms for the biomineralization of terrigenous dissolved organic matter in the ocean)

Summary:
Groves Creek Marsh (31.972\u00b0 N, 81.028\u00b0 W), a temperate salt marsh fringing Skidaway Island, GA served as the field site for this study. During July 16-17, 2014, samples were collected every two hours and four minutes to evenly sample across two tidal cycles and one diurnal cycle.

cdm_data_type = Other
VARIABLES:
Time_point (unitless)
time (seconds since 1970-01-01T00:00:00Z)
Temperature (degrees Celsius)
depth (m)
Salinity (Sea Water Practical Salinity, parts per thousand (ppt))
Cell_Density (cells per mililiter (cells/mL))
Bacterial_Production (milimole per hour (mmol/h))
DOC (mm)
TDN (mm)
DOC_TDN (unitless)
a254_DOC (unitless)
Lignin (mg 1/ mg OC)
latitude (degrees_north)
longitude (degrees_east)


[Growth - pCO2 x DO effects on Menidia menidia] - Growth data from static and fluctuating pCO2 x dissolved oxygen (DO) experiments on Menidia menidia (Collaborative research: Understanding the effects of acidification and hypoxia within and across generations in a coastal marine fish)

Summary:
Coastal ecosystems experience substantial natural fluctuations in pCO2 and dissolved oxygen (DO) conditions on diel, tidal, seasonal and interannual timescales. Rising carbon dioxide emissions and anthropogenic nutrient input are expected to increase these pCO2 and DO cycles in severity and duration of acidification and hypoxia. How coastal marine organisms respond to natural pCO2 \u00d7 DO variability and future climate change remains largely unknown. Here, we assess the impact of static and cycling pCO2 \u00d7 DO conditions of various magnitudes and frequencies on early life survival and growth of an important coastal forage fish, Menidia menidia. Static low DO conditions severely decreased embryo survival, larval survival, time to 50% hatch, size at hatch and post-larval growth rates. Static elevated pCO2 did not affect most response traits, however, a synergistic negative effect did occur on embryo survival under hypoxic conditions (3.0 mg L-1). Cycling pCO2 \u00d7 DO, however, reduced these negative effects of static conditions on all response traits with the magnitude of fluctuations influencing the extent of this reduction. This indicates that fluctuations in pCO2 and DO may benefit coastal organisms by providing periodic physiological refuge from stressful conditions, which could promote species adaptability to climate change.

cdm_data_type = Other
VARIABLES:
Experiment (unitless)
Treatment (unitless)
Cycling_pattern (unitless)
Tank_No (unitless)
Hatch_length (millimeters (mm))
Hatch_length_SE (millimeters (mm))
Mean_growth_rate (millimeters per day (mm day-1))
Mean_growth_rate_SE (millimeters per day (mm day-1))


[Growth and mortality] - Growth and mortality of corals on long-term monitoring sites in St. John, USVI. (LTREB Long-term coral reef community dynamics in St. John, USVI: 1987-2019)

Summary:
Growth and mortality of corals on long-term monitoring sites in St. John, USVI.

cdm_data_type = Other
VARIABLES:
tag_number (unitless)
coral_taxon (unitless)
years_1996_1997 (millimeter per year)
years_1997_1998 (millimeter per year)
years_1998_1999 (millimeter per year)
years_1999_2000 (millimeter per year)
years_2000_2001 (millimeter per year)
years_2001_2002 (millimeter per year)
years_2002_2003 (millimeter per year)
years_2003_2003 (millimeter per year)
years_2004_2005 (millimeter per year)
years_2005_2006 (millimeter per year)
years_2006_2007 (millimeter per year)
years_2007_2008 (millimeter per year)
years_2008_2009 (millimeter per year)
years_2009_2010 (millimeter per year)
years_2010_2011 (millimeter per year)
years_2011_2012 (millimeter per year)
years_2012_2013 (millimeter per year)
years_2013_2014 (millimeter per year)
years_2014_2015 (millimeter per year)


[growth phase exopolymers] - Experimental results: Exopolymer and carbohydrate production by diatoms with growth; conducted at the Thornton lab, TAMU from 2007-2012 (Diatom EPS Production project) (Effect of Temperature on Extracellular Polymeric Substance Production (EPS) by Diatoms)

Summary:
Data from laboratory experiment on exopolymer and carbohydrate production by
the diatoms Thalassiosira weissflogii (CCMP 1051), Skeletonema marinoi (CCMP
1332), and Cylindrotheca closterium (CCMP 339) during the growth to death
phases of the cultures.

Related references:
 Chen, J. 2014. Factors affecting carbohydrate production and the formation
of transparent exopolymer particles (TEP) by diatoms. Ph.D. dissertation,
Texas A&M University, College Station, TX.

cdm_data_type = Other
VARIABLES:
species (dimensionless)
growth_phase (dimensionless)
day (dimensionless)
culture (dimensionless)
cell_abundance (cells per milliliter (mL-1))
cell_vol_mean (cubic micrometers (um^3))
chla (Concentration Of Chlorophyll In Sea Water, micrograms per liter (ug L-1))
chla_per_cell (Concentration Of Chlorophyll In Sea Water, picograms per cell (pg cell-1))
chla_per_cell_vol (Concentration Of Chlorophyll In Sea Water, femtograms per cubic micrometer (fg um-3))
tot_carb (micrograms per milliliter (ug mL-1))
tot_carb_per_cell (picograms per cell (pg cell-1))
tot_carb_per_cell_vol (femtograms per cubic micrometer (fg um-3))
colloidal_carb (micrograms per milliliter (ug mL-1))
collodial_per_cell (picograms per cell (pg cell-1))
colloidal_per_cell_vol (femtograms per cubic micrometer (fg um-3))
EPS_carb (micrograms per milliliter (ug mL-1))
EPS_carb_per_cell (picograms per cell (pg cell-1))
EPS_carb_per_cell_vol (femtograms per cubic micrometer (fg um-3))
HW_carb (micrograms per milliliter (ug mL-1))
... (21 more variables)


[Growth rate of Pleurochrysis carterae] - Experimental data on growth rates of Pleurochrysis carterae analyzed at Bigelow Laboratory from 2013. (OA Copes Coccoliths project) (Effects of ocean acidification on Emiliania huxleyi and Calanus finmarchicus; insights into the oceanic alkalinity and biological carbon pumps)

Summary:
Experimental data on growth rates of Pleurochrysis carterae analyzed at Bigelow Laboratory from 2013. (OA Copes Coccoliths project)

cdm_data_type = Other
VARIABLES:
pCO2_treatment (P CO2 Treatment, ppm)
day (unitless)
growth_cycle (unitless)
cell_density (cell per milliliter cells/mL)
ln_cellDensity (Ln Cell Density, ln(cells/mL))
linest_slope ((ln(cells/mL))/day)
linest_intercept (unitless)
growthRate (Growth Rate, u/day)
mean_growthRate (Mean Growth Rate, u/day)
stdev_growthRate (Stdev Growth Rate, day-1)


[Growth rates - evolution expt] - Daily growth rates of 8 populations of Chaetoceros simplex grown at 31C with control population at 25C, in regular L1 medium (884 µm NO3-) (Dimensions: Collaborative Research: Genetic, functional and phylogenetic diversity determines marine phytoplankton community responses to changing temperature and nutrients)

Summary:
Daily growth rates of 8 populations of Chaetoceros simplex grown at 31C and control population at 25C, in regular L1 medium (884 \u03bcm NO3\u2212) or nitrogen\u2010reduced L1 medium (5 \u03bcm NO3\u2212).

cdm_data_type = Other
VARIABLES:
Evol_strain (unitless)
period (unitless)
Temperature (Celsius degrees)
Nitrate_Concentration (Micromolar)
Replicate (unitless)
Growth_rate (day-1)


[Growth rates and bulk isotope values] - Growth rates, bulk isotope values, elemental composition data from the R/V Meteor M77 cruise in the Peruvian ocean margin from November to December 2008. (The Use of Nitrogen Isotopes of Amino Acids To Understand Marine Sedimentary 15N Records)

Summary:
Growth rates, bulk isotope values, elemental composition data from the R/V Meteor M77 cruise in the Peruvian ocean margin from November to December 2008.

cdm_data_type = Other
VARIABLES:
Treatment_ID (unitless)
Growth_rate (days)
Cell_density (cells per milliliter)
Cell_size (microns)
Bulk_stable_isotope_d13C (Bulk Stable Isotope D13 C, per mil)
Bulk_stable_isotope_d15N (Bulk Stable Isotope D15 N, per mil)
elemental_composition_C (percent)
elemental_composition_N (percent)
elemental_composition_C_N_atomic (percent)


[Growth rates of Line P diatoms in added Zn and Co incubation studies] - Growth rates NE Pacific and Atlantic diatom isolates under various Zn and Co additions in experiments with cultures collected from R/V Thomas G. Thompson cruise TN280, along Line P in the NE Pacific, in May of 2012. (US GEOTRACES PMT: Cobalt Biogeochemical Cycling and Connections to Metalloenzymes in the Pacific Ocean)

Summary:
Growth rates of two NE Pacific Line P diatom isolates and two Atlantic diatom isolates under various Zn and Co additions. Cultures were collected from the GeoMICS expedition on the R/V Thomas G. Thompson (cruise TN280), along Line P in the NE Pacific, in May of 2012.

cdm_data_type = Other
VARIABLES:
Culture (unitless)
Experiment_Type (unitless)
Added_Zn (nanomoles per liter (nmol/L))
Added_Co (nanomoles per liter (nmol/L))
Total_Zn (nanomoles per liter (nmol/L))
Total_Co (nanomoles per liter (nmol/L))
log_Zn2plus (moles per liter (mol/L))
log_Co2plus (moles per liter (mol/L))
Growth_rate_replicate_A (per day (d-1))
Growth_rate_replicate_B (per day (d-1))
Growth_rate_average (per day (d-1))
Maximum_RFU (Relative Fluorescence Units (RFU))


[GS02 Beryllium-7 in seawater and aerosols] - Aerosol and seawater beryllium-7 concentrations from the French GEOTRACES GS02 SWINGS cruise aboard R/V Marion-Dufresne (MD229) from January to March 2021 (Collaborative Research: Quantifying the atmospheric flux of bio-active trace elements to the southwestern Indian Ocean)

Summary:
Beryllium-7, a cosmogenic radioactive isotope with a half-life of 53.3 days, is formed in the atmosphere, attaches to aerosol particles, and is deposited on the earth's surface through wet and dry processes. In this project, we measured Be-7 concentrations in aerosol particles and in seawater samples (depths < 200 meters) collected on the French GEOTRACES section GS02 SWINGS cruise aboard R/V Marion-Dufresne. The cruise originated at Réunion Island on 11 January 2021 and concluded at Réunion on 8 March 2021. Nineteen aerosol samples and seawater from eleven stations in the South Indian Ocean were collected. The dataset will be used to study the deposition of trace elements and isotopes (TEIs) and upper ocean mixing processes. Aerosol deposition is an important source of TE micronutrients to open ocean areas that are far removed from riverine sources. But, while the collection aerosol of samples for TEI analysis is straightforward, estimating the deposition flux also requires an appropriate deposition velocity (i.e. deposition flux is the product of the aerosol concentration and deposition velocity). Because Be-7 is supplied to the open ocean exclusively through aerosol deposition and it is removed through radioactive decay, the water column inventory and aerosol concentration of Be-7 can be used to derive the deposition velocity applicable to aerosol TEIs.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_ID (unitless)
... (7 more variables)


[GSC urchin grazing] - Experiment testing the temperature dependence of urchin grazing at the Galapagos Science Center on San Cristobal Island from February to March 2018 (The Role of Temperature in Regulating Herbivory and Algal Biomass in Upwelling Systems)

Summary:
This study was conducted from February to March 2018 at the Galapagos Science Center on San Cristobal Island. The rate of Ulva sp. consumption by the two sea urchins, Lytechinus semituberculatus and Eucidaris galapagensis was measured at 10 temperatures: 14\u00b0, 16\u00b0, 18\u00b0, 20\u00b0, 22\u00b0, 24\u00b0, 26\u00b0, 28\u00b0, 30\u00b0, 32\u00b0C. L. semituberculatus (green urchin), E. galapaguensis (pencil urchin) and T. depressus (white urchin) are the three most common species in the Galapagos Islands and together make up 91% of the sea urchin biomass.  Ulva sp. was used as the prey item because it is one of the most abundant macroalgal species, together with turf, encrusting coralline algae and Sargassum near the Galapagos and coast and because it is highly palatable for herbivores.

cdm_data_type = Other
VARIABLES:
Mesocosm (unitless)
Species (unitless)
Temperature (degrees Celsius)
Grazing (unitless)


[GT10 (GA03) Bulk Aerosol Fe isotopes - KN199-04] - Total aerosol iron isotope ratios from the 2010 GA03 U.S. GEOTRACES North Atlantic Transect Cruise, KN199-04, on R/V Knorr (U.S. GEOTRACES North Atlantic Transect (GA03))

Summary:
This dataset includes total aerosol iron isotope ratios from the GA03 U.S. GEOTRACES North Atlantic Transect Cruise, KN199-04, on R/V Knorr which took place from October to November 2010.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_ID (unitless)
Fe_56_54_A_T_DELTA_HIVOL_yqcbow (per 10^3)
SD1_Fe_56_54_A_T_DELTA_HIVOL_yqcbow (per 10^3)
Flag_Fe_56_54_A_T_DELTA_HIVOL_yqcbow (unitless)


[GT10 - As  AP Surface Transects] - Surface arsenic, antimony speciation, and alkaline phosphatase activity along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Data for the concentrations of the dissolved (<0.4 \u00b5m) arsenic species: total inorganic As (III+V), arsenite (AsIII), arsenate (AsV), monomethyl As, and dimethyl As; and the activity of the enzyme alkaline phosphatase (unfiltered) on the surface transect.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
transect_station (text)
date (unitless)
time2 (Time, HHMM)
latitude (degrees_north)
longitude (degrees_east)
AsIII (As III, nmol/L)
TAs (nmol/L)
As (nanomoles/liter)
MMAs (nmol/L)
DMAs (nmol/L)
AP_Turnover_Time (hours)
AP_Turnover_Rate (h-1)


[GT10 - CDOM] - Absorption coefficients of colored dissolved organic matter (CDOM) along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic in 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Absorption coefficients of colored dissolved organic matter (CDOM) along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic in 2010 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
station_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
depth_GEOTRC_CTD (Depth, meters)
sample_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
yrday (unitless)
date_gmt (unitless)
time_gmt (unitless)
replicates (dimensionless)
wavelength (nanometers)
absp_coef (1/meters)


[GT10 - Cruise Event Log] - Scientific sampling event log associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Scientific sampling event log associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
event (integer)
location (text)
event_description (text)
GEOTRACES_ID_Num_Range (text)
date_start (unitless)
time_start (HHMM)
date_end (unitless)
time_end (HHMM)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
depth_max (Depth, meters)
samples_taken (text)
comment (text)


[GT10 - Cruise Tracks] - Cruise tracks along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Cruise tracks along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
cruise_id (text)
date (unitless)
time2 (Time, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)


[GT10 - CTD - GT-C Bottle] - GTC bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
GTC bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010.

cdm_data_type = Other
VARIABLES:
EXPOCODE (text)
SECT_ID (text)
STNNBR (integer)
CASTNO (integer)
GEOTRC_EVENTNO (integer)
DATE (unitless)
time2 (TIME, unitless)
latitude (degrees_north)
longitude (degrees_east)
GEOTRC_SAMPNO (integer)
SAMPNO (integer)
BTLNBR (text)
BTLNBR_FLAG_W (integer)
BTL_DATE (unitless)
BTL_TIME (unitless)
BTL_LAT (decimal degrees)
BTL_LON (decimal degrees)
BTMDEPTH (corrected meters)
CTDPRS (decibars)
depth (CTDDEPTH, m)
CTDTMP (ITS-90)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
SALNTY (PSS-78)
SALNTY_FLAG_W (integer)
CTDOXY (micromole/kilogram)
... (223 more variables)


[GT10 - CTD - GT-C Profiles] - GTC CTD profiles along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
GTC CTD profiles along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
GEOTRACES_CRUISE_ID (text)
CRUISE_ID (text)
GEOTRC_EVENTNO (integer)
STNNBR (integer)
CASTNO (integer)
TYPE (text)
DATE (unitless)
time2 (TIME, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)
BTMDEPTH (CORR METERS)
CTDPRS (DBAR)
CTDPRS_FLAG_W (integer)
CTDTMP (ITS-90)
CTDTMP_FLAG_W (integer)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
CTDOXY (UMOL/KG)
CTDOXY_FLAG_W (integer)
TRANSM (0-5VDC)
TRANSM_FLAG_W (integer)
FLUORM (0-5VDC)
FLUORM_FLAG_W (integer)
depth (m)
DEPTH_FLAG_W (Depth, integer)
CTDNOBS (integer)
CTDETIME (SECONDS)


[GT10 - CTD - ODF/SIOR Bottle] - ODF bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
ODF bottle data along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010.

cdm_data_type = Other
VARIABLES:
EXPOCODE (text)
SECT_ID (text)
STNNBR (integer)
CASTNO (integer)
GEOTRC_EVENTNO (integer)
DATE (unitless)
time2 (TIME, unitless)
latitude (degrees_north)
longitude (degrees_east)
GEOTRC_SAMPNO (integer)
SAMPNO (integer)
BTLNBR (text)
BTLNBR_FLAT_W (integer)
BTO_DATE (unitless)
BTL_TIME (unitless)
BTL_LAT (decimal degrees)
BTL_LON (decimal degrees)
BTMDEPTH (meters, corrected)
CTDPRS (decibars)
depth (CTDDEPTH, m)
CTDTMP (ITS-90)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
SALNTY (PSS-78)
SALNTY_FLAG_W (integer)
CTDOXY (umol/kg)
... (143 more variables)


[GT10 - CTD - ODF/SIOR Profiles] - ODF CTD profiles along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
ODF CTD profiles along with US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N Atlantic during 2010 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
GEOTRACES_CRUISE_ID (text)
CRUISE_ID (text)
STNNBR (integer)
lat_nom (Latitude, decimal degrees)
lon_nom (Longitude, decimal degrees)
BTMDEPTH (CORR METERS)
GEOTRC_EVENTNO (integer)
CASTNO (integer)
TYPE (text)
DATE (unitless)
time2 (TIME, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)
CTDPRS (DBAR)
CTDPRS_FLAG_W (integer)
CTDTMP (ITS-90)
CTDTMP_FLAG_W (integer)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
CTDOXY (UMOL/KG)
CTDOXY_FLAG_W (integer)
TRANSM (0-5VDC)
TRANSM_FLAG_W (integer)
FLUORM (0-5VDC)
FLUORM_FLAG_W (integer)
depth (m)
DEPTH_FLAG_W (Depth, integer)
CTDNOBS (integer)
CTDETIME (SECONDS)


[GT10 - CTD and PUMP - Cast Events] - CTD and pump cast events associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
CTD and pump cast events associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project)

cdm_data_type = Other
VARIABLES:
cast (text)
event_GEOTRC (integer)
type (text)
activity (text)
date (unitless)
time2 (Time, unitless)
latitude (degrees_north)
longitude (degrees_east)
speed (knots)
course (degrees)
depth (m)
DAB (meters)
wire_out (meters)
press_max (decibars)
duration (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10 - DOC] - Dissolved organic carbon (DOC) from US GEOTRACES North Atlantic Transect cruise on the R/V Knorr KN199-04 in the subtropical N. Atlantic in 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Dissolved organic carbon (DOC) from US GEOTRACES North Atlantic Transect cruise on the R/V Knorr KN199-04 in the subtropical N. Atlantic in 2010.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
station_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
date_gmt (unitless)
time_gmt (unitless)
yrday_gmt (unitless)
bottle_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
depth (m)
depth_GEOTRC_CTD (Depth, meters)
DOC (micromoles/Liter)
DOC_sd (micromoles/Liter)
replicate (dimensionless)
DOC_qf (dimensionless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10 - Nanomolar Nutrients - Surface] - PO4, NO3, NO2 surface concentrations along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
PO4, NO3, NO2 surface concentrations along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04, KN199-05 cruises in the subtropical N. Atlantic during 2010.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
GeoFish_id (Geo Fish Id, integer)
event_GEOTRC (dimensionless)
GeoTraces_ID (Geo Traces ID, integer)
sample_GEOTRC (dimensionless)
date (unitless)
time2 (Time, HHMM)
latitude (degrees_north)
longitude (degrees_east)
PO4 (Mass Concentration Of Phosphate In Sea Water, nmol/L)
PO4_Flag (integer)
NO3 (Mole Concentration Of Nitrate In Sea Water, nmol/L)
NO3_Flag (integer)
NO2 (Mole Concentration Of Nitrite In Sea Water, nmol/L)
NO2_Flag (integer)
Remarks (text)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10 - POC_PON] - Particulate organic carbon (POC) and nitrogen (PON) along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic from 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Particulate organic carbon (POC) and nitrogen (PON) along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic from 2010.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
station_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
time_gmt (unitless)
yrday_gmt (unitless)
date_gmt (unitless)
depth (m)
POC (Particulate Organic Carbon, milligrams/m^3)
POC_sd (milligrams/m^3)
PON (milligrams/m^3)
PON_sd (milligrams/m^3)
replicate (dimensionless)
depth_GEOTRC_CTD (Depth, meters)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10 - SPM] - Suspended particulate matter along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical northern Atlantic Ocean in 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Suspended particulate matter along US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical northern Atlantic Ocean in 2010.

cdm_data_type = Other
VARIABLES:
cruise_id (nd)
station_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
time_gmt (unitless)
yrday_gmt (unitless)
date_gmt (unitless)
depth (m)
SPM (mg/Liter)
SPM_sd (mg/Liter)
replicate (dimensionless)
SPM_qflag (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
depth_GEOTRC_CTD (Depth, meters)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10-11 - cellular element quotas] - Cellular elemental content of individual phytoplankton cells collected during US GEOTRACES North Atlantic Transect cruises in the Subtropical western and eastern North Atlantic Ocean during Oct and Nov, 2010 and Nov. 2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Individual phytoplankton cells were collected on the GEOTRACES North Atlantic
Transect cruises were analyzed for elemental content using SXRF (Synchrotron
radiation X-Ray Fluorescence). Carbon was calculated from biovolume using the
relationships of Menden-Deuer & Lessard (2000). Trace metal concentrations are
reported.

Download zipped images:
[Chlorophyll](\\http://data.bco-dmo.org/GEOTRACES/Twining/Chl_image.zip\\)
[Light](\\http://data.bco-dmo.org/GEOTRACES/Twining/Light_image.zip\\)
[SXRF maps](\\http://data.bco-dmo.org/GEOTRACES/Twining/SXRF_map.zip\\)
[SXRF spectra](\\http://data.bco-
dmo.org/GEOTRACES/Twining/SXRF_spectra.zip\\)

Related references:

Menden-Deuer, S. and E. J. Lessard (2000). Carbon to volume relationships for
dinoflagellates, diatoms, and other protist plankton. Limnology and
Oceanography 45(3): 569-579.

* Twining, B. S., S. Rauschenberg, P. L. Morton, and S. Vogt. 2015. Metal contents of phytoplankton and labile particulate material in the North Atlantic Ocean. Progress in Oceanography 137: 261-283.)

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
project (unitless)
station_GEOTRC (unitless)
sta_PI (unitless)
latitude (degrees_north)
longitude (degrees_east)
... (28 more variables)


[GT10-11 - delta 15N-NO3] - delta 15N of nitrate from R/V Knorr cruise KN199-04 & KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Dataset includes delta 15N of nitrate (NO3) measurements from the GT10 and GT11 (KN199-04 and KN204-01) U.S. GEOTRACES North Atlantic Transect cruises.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
year (unitless)
station_GEOTRC (dimensionless)
depth (m)
press (decibars)
event_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
month_gmt (unitless)
day_gmt (unitless)
time_gmt (unitless)
latitude (degrees_north)
longitude (degrees_east)
d15N_NO3 (Mole Concentration Of Nitrate In Sea Water, per mil)
d15N_NO3_sd (D15 N NO3 Sd, per mil)
n (dimensionless)
flag_low_area (dimensionless)
flag_low_conc (dimensionless)
ISO_DateTime_UTC (ISO Date Time UTC, unitless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10-11 - delta 30Si] - Profiles of stable isotopes of silicon (Si) in silicic acid (Si(OH)4) from R/V Knorr cruises KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Profiles of stable isotopes of silicon in silicic acid (delta 30Si) collected at stations during the GT10 (KN199-04) and GT11 (KN204-01) U.S. GEOTRACES North Atlantic Transect cruises.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
cruise_name (text)
station_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
depth_w (Depth, meters)
latitude (degrees_north)
longitude (degrees_east)
date_gmt (unitless)
time_gmt (unitless)
event_ISO_DateTime_UTC (Event ISO Date Time UTC, unitless)
sample_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
depth (m)
d30Si_mean (D30 Si Mean, per mil (0/00))
d30Si_mean_sd (D30 Si Mean Sd, per mil (0/00))
num_reps (dimensionless)
status_comment (text)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10-11 - delta_13C] - delta 13C measurement of dissolved inorganic carbon (DIC) from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
delta 13C measurements made on dissolved inorganic carbon (DIC) samples collected at stations during the GT10 and GT11 (KN199-04 and KN204-01) cruises as part of the U.S. GEOTRACES North Atlantic Transect project.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
cruise_name (dimensionless)
station_GEOTRC (dimensionless)
lat_nom (Latitude, decimal degrees)
lon_nom (Longitude, decimal degrees)
depth (m)
cast_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
month (unitless)
day (unitless)
year (unitless)
delta13C (Delta13 C, per mil)
delta13C_flag (Delta13 C Flag, dimensionless)
event_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10-11 - DIC_TA] - Inorganic Carbon along US GEOTRACES North Atlantic Transect from R/V Knorr KN199-04, KN204-01 cruises in the subtropical N. Atlantic from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Dissolved inorganic carbon (DIC) and total alkalinity (TA) data from the 2010 and 2011 GEOTRACES North Atlantic Cruises.

cdm_data_type = Other
VARIABLES:
expocode (dimensionless)
sect_id (dimensionless)
station_GEOTRC (dimensionless)
cast_GEOTRC (dimensionless)
event_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
date_utc (unitless)
time_utc (hhmm)
sample_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
bottle_qflag (dimensionless)
depth_bottom (Depth, meters)
depth (m)
press (decibars)
temp (Temperature, degrees Celsius)
sal (dimensionless)
sal_qflag (dimensionless)
sal_bottle (dimensionless)
sal_bottle_qflag (dimensionless)
DIC (micromoles/kg)
DIC_qflag (dimensionless)
comments_DIC (dimensionless)
TALK (micromoles per Kilogram)
TALK_qflag (dimensionless)
comments_TALK (dimensionless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT10-11 - Particulate composition] - Size-fractionated major and minor particle composition and concentration from R/V Knorr KN199-04 & KN204-01 (GA03) in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Size-fractionated major and minor particle composition and concentration from R/V Knorr KN199-04, KN204-01 in the subtropical North Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
cruise_id (text)
station_GEOTRC (unitless)
latitude (degrees_north)
longitude (degrees_east)
date (unitless)
time2 (Time, unitless)
depth_w (Depth, meters)
cast_GEOTRC (integer)
cast_flag (unitless)
cast_type (integer)
event_GEOTRC (unitless)
depth_n (Depth, meters)
depth_flag (Depth, unitless)
depth_sd (Depth, meters)
depth_sd_flag (Depth, unitless)
depth (m)
depth_GEOTRC_CTD_round (Depth, meters)
sample_GEOTRC (unitless)
sample_bottle_GEOTRC (integer)
bottle_GEOTRC (unitless)
sample_GEOTRC_flag (unitless)
BTL_ISO_DateTime_UTC (BTL ISO Date Time UTC, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
pump (unitless)
pump_flag (unitless)
vol_QMA (liters)
... (219 more variables)


[GT10-11 - Particulate Po Pb] - Particulate 210Po and 210Pb from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Particulate 210Po and 210Pb from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
cruise_name (dimensionless)
station_GEOTRC (dimensionless)
depth (m)
cast_GEOTRC (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
event_GEOTRC (dimensionless)
sample_GEOTRC (dimensionless)
sample_bottle_GEOTRC (dimensionless)
bottle_GEOTRC (dimensionless)
instr (unitless)
time (BTL ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
Po_210 (dpm (nuclear decays per minute)/100 kilgrams)
Po_210_sd (dpm/100 kilgrams)
Pb_210 (dpm/100 kilgrams)
Pb_210_sd (dpm/100 kilgrams)
Po_Pb_ratio (dimensionless)
Po_Pb_ratio_sd (dimensionless)


[GT10-11 - Th234 Particulate] - Particulate Thorium-234 from in situ pumps from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Particulate Th-234 from in situ pumps, including large size fraction (> 51 um) and small size fraction (1-51 um), from the 2010 and 2011 U.S. GEOTRACES cruises.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
station_GEOTRC (unitless)
cruise_part (text)
latitude (degrees_north)
longitude (degrees_east)
event_GEOTRC (unitless)
cast_GEOTRC (unitless)
month_gmt (unitless)
day_gmt (unitless)
year (unitless)
time_gmt (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
depth_n (Depth, meters)
depth_GEOTRC_CTD (Depth, meters)
sample_GEOTRC (unitless)
sample_bottle_GEOTRC (unitless)
bottle_GEOTRC (unitless)
pump (unitless)
Th234_p_1to51 (dpm/Liter)
Th234_p_1to51_unc (dpm/Liter)
Th234_p_gt51 (dpm/Liter)
Th234_p_gt51_unc (dpm/Liter)
q_flag (unitless)
BTL_ISO_DateTime_UTC (BTL ISO Date Time UTC, unitless)


[GT10-11 - Th234_Total_and_U238] - Water-column total Thorium-234 and Uranium-238 from R/V Knorr cruises KN199-04 and KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Water-column total Th-234 with 4 L method and U-238 from U-salinity relationship from the 2010 and 2011 U.S. GEOTRACES cruises.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
station_GEOTRC (unitless)
cruise_part (text)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
depth_n (Depth, meters)
depth_GEOTRC_CTD (Depth, meters)
event (unitless)
event_GEOTRC (unitless)
cast_GEOTRC (unitless)
sample_GEOTRC (unitless)
sample_bottle_GEOTRC (unitless)
bottle (unitless)
bottle_GEOTRC (unitless)
month_gmt (unitless)
day_gmt (unitless)
year (unitless)
time_gmt (unitless)
U238 (dpm/Liter)
U238_unc (dpm/Liter)
Th234_tot (dpm/Liter)
Th_234_tot_unc (dpm/Liter)
q_flag (unitless)
time (Cast ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
BTL_ISO_DateTime_UTC (BTL ISO Date Time UTC, unitless)


[GT10-11 - Trace Element References] - SAFe and GEOTRACES trace element references from R/V Knorr KN199-04, KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
SAFe and GEOTRACES trace element references from R/V Knorr cruises KN199-04 & KN204-01 in the Subtropical northern Atlantic Ocean from 2010-2011.

cdm_data_type = Other
VARIABLES:
cruise_id (text)
sta (integer)
element (text)
unit (picomoles/kilogram or nanomoles/kilogram)
blank (picomoles/kilogram or nanomoles/kilogram)
lod (picomoles/kilogram or nanomoles/kilogram)
ref_SAFe_deep (picomoles/kilogram or nanomoles/kilogram)
ref_SAFe_surf (picomoles/kilogram or nanomoles/kilogram)
ref_GT_deep (picomoles/kilogram or nanomoles/kilogram)
ref_GT_surf (picomoles/kilogram or nanomoles/kilogram)


[GT11 (GA03) Bulk Aerosol Fe isotopes - KN204-01] - Total aerosol iron isotope ratios from the 2011 GA03 U.S. GEOTRACES North Atlantic Transect Cruise, KN204-01, on R/V Knorr (U.S. GEOTRACES North Atlantic Transect (GA03))

Summary:
This dataset includes total aerosol iron isotope ratios from the GA03 U.S. GEOTRACES North Atlantic Transect Cruise, KN204-01, on R/V Knorr which took place from November to December 2011.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Event_ID (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
latitude (Start_latitude, degrees_north)
longitude (Start_longitude, degrees_east)
End_Latitude (degrees_north)
End_Longitude (degrees_east)
Sample_ID (unitless)
Fe_56_54_A_T_DELTA_HIVOL_btjjlt (per 10^3)
SD1_Fe_56_54_A_T_DELTA_HIVOL_btjjlt (per 10^3)
Flag_Fe_56_54_A_T_DELTA_HIVOL_btjjlt (unitless)


[GT11 -  CTD and PUMP - Cast Events] - CTD and pump cast events associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
CTD and pump cast events associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)

cdm_data_type = Other
VARIABLES:
station_GEOTRC (integer)
cruise_part (text)
cast_GEOTRC (integer)
event_GEOTRC (integer)
dep_type (text)
activity (text)
date (unitless)
time2 (Time, unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
ctd_id (integer)
dab (meters)
maxp (psi)
name ((tbd))
comment (text)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[GT11 - As AP Surface Transects] - Surface transects for arsenic speciation, antimony speciation, and alkaline phosphatase activity from R/V Knorr cruise KN204-01 in the Subtropical North Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Surface transects for arsenic speciation, antimony speciation, and alkaline phosphatase activity. Data for the concentrations of the dissolved (<0.4 \u00b5m) arsenic species: total inorganic As (III+V), arsenite (AsIII), As(V), monomethyl As, dimethyl As,  and the activity of the enzyme alkaline phosphatase (unfiltered).

cdm_data_type = Other
VARIABLES:
cruise_id (text)
cruise_part (dimensionless)
geofish_station (text)
date (unitless)
time2 (Time, HHMM)
latitude (degrees_north)
longitude (degrees_east)
AsIII (As III, nmol/L)
TAs (nmol/L)
As (nanomoles/liter)
MMAs (nmol/L)
DMAs (nmol/L)
AP_Turnover_Time (hours)
AP_Turnover_Rate (h-1)


[GT11 - Cruise Event Log] - Scientific sampling event log from R/V Knorr cruise KN204-01 in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Scientific sampling event log from R/V Knorr cruise KN204-01 in the Subtropical northern Atlantic Ocean in 2011 (U.S. GEOTRACES NAT project).

cdm_data_type = Other
VARIABLES:
cruise_id (text)
year (unitless)
event (integer)
location (text)
event_description (text)
GEO_sample_id_range (text)
month_start (mm (01 to 12))
day_start (dd (01 to 31))
time_start (HHMM)
month_end (mm (01 to 12))
day_end (dd (01 to 31))
time_end (HHMM)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
depth_max (Depth, meters)
samples_taken (text)
comment (text)


[GT11 - Cruise Tracks] - Cruise tracks along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Cruise tracks along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011.

cdm_data_type = Other
VARIABLES:
date (unitless)
cruise_part (text)
time2 (Time, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)


[GT11 - CTD - Bottle Sampling Comments] - Bottle sampling comments associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Bottle sampling comments associated with the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project)

cdm_data_type = Other
VARIABLES:
station_GEOTRC (integer)
cruise_part (text)
cast_GEOTRC (integer)
date (unitless)
time2 (Time, HHMMSS)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
type (text)
sample_bottle_GEOTRC (integer)
sample_GEOTRC (integer)
property (text)
code (integer)
who (text)
comments (text)


[GT11 - CTD - GT-C Bottle] - Bottle data along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
Bottle data along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011.

cdm_data_type = Other
VARIABLES:
STNNBR (integer)
EXPOCODE (text)
SECT_ID (text)
CASTNO (integer)
GEOTRC_EVENTNO (integer)
DATE (unitless)
time2 (TIME, unitless)
latitude (degrees_north)
longitude (degrees_east)
cruise_part (text)
GEOTRC_SAMPNO (integer)
SAMPNO (integer)
BTLNBR (text)
BTLNBR_FLAG_W (integer)
BTL_DATE (unitless)
BTL_TIME (unitless)
BTL_LAT (decimal degrees)
BTL_LON (decimal degrees)
BTMDEPTH (CORR.M)
CTDPRS (DBARS)
CTDDEPTH (METERS)
CTDTMP (ITS-90)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
SALNTY (PSS-78)
SALNTY_FLAG_W (integer)
... (244 more variables)


[GT11 - CTD - GT-C Profiles] - GTC one meter-averaged downcast CTD profiles along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
GTC one meter-averaged downcast CTD profiles along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN204-01 cruise in the subtropical N. Atlantic during 2011.

cdm_data_type = Other
VARIABLES:
STNNBR (integer)
GEOTRACES_CRUISE_ID (text)
cruise_part (text)
GEOTRC_EVENTNO (integer)
CASTNO (integer)
TYPE (text)
DATE (unitless)
time2 (TIME, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)
BTMDEPTH (CORR METERS)
CTDPRS (DBAR)
CTDPRS_FLAG_W (integer)
CTDTMP (ITS-90)
CTDTMP_FLAG_W (integer)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
CTDOXY (UMOL/KG)
CTDOXY_FLAG_W (integer)
TRANSM (0-5VDC)
TRANSM_FLAG_W (integer)
FLUORM (0-5VDC)
FLUORM_FLAG_W (integer)
DEPTH (METERS)
DEPTH_FLAG_W (Depth, integer)
CTDNOBS (integer)
CTDETIME (SECONDS)


[GT11 - CTD - ODF/SIOR Profiles] - ODF one meter-averaged downcast CTD profiles along the US GEOTRACES North Atlantic Transect from the R/V Knorr KN199-04 cruise in the subtropical N. Atlantic from 2010 (U.S. GEOTRACES NAT project) (U.S. GEOTRACES North Atlantic Transect)

Summary:
CTD profile data from 30-ODF/SIOR (Ocean Data Facility 12 bottle, 30 liter
Niskin rosette)
 1m Downcasts

CTD/Hydrographic Measurements Program
 Two types of rosette/SBE9plus CTD casts (65 SIOR/30L-Niskin and 40 GT-C/15L-
GoFlo) were made at
 22 station locations during GEOTRACES 2011. 13 shallow and 13 deep McLane
pump profiles were
 done at all Full and Super Stations, with an SBE19plus CTD attached to the
end of the wire.

cdm_data_type = Other
VARIABLES:
STNNBR (integer)
GEOTRACES_CRUISE_ID (text)
cruise_part (text)
GEOTRC_EVENTNO (integer)
CASTNO (integer)
TYPE (text)
DATE (unitless)
time2 (TIME, HHMMSS)
latitude (degrees_north)
longitude (degrees_east)
BTMDEPTH (CORR METERS)
CTDPRS (DBAR)
CTDPRS_FLAG_W (integer)
CTDTMP (ITS-90)
CTDTMP_FLAG_W (integer)
CTDSAL (PSS-78)
CTDSAL_FLAG_W (integer)
... (10 more variables)


[GTseq KW 2015-2017] - GTseq DNA sequencing of Kelletia kelletii collected in California, USA and Baja, Mexico from 2015 to 2017 (Collaborative Research: RUI: Combined spatial and temporal analyses of population connectivity during a northern range expansion)

Summary:
Climate-driven warming and changes in major ocean currents enable poleward transport and range expansions of many marine species. Here, we report the population genetic assignment of post-dispersal recruits to pre-dispersal natal source locations for the gastropod Kellet's whelk (Kelletia kelletii), a commercial fisheries species and subtidal predator with top-down food web effects, whose populations have recently undergone climate-driven northward range expansion.

This dataset includes sample id, collection site and year, tissue type, length, and extraction information for samples sequenced. Samples were collected between 2015-2017. We genotyped 2,874  individuals from 24 locations across the species' entire biogeographic range using 305 genotyping-in-thousands by sequencing (GT-Seq) loci. Analysis shows a large contribution of 1-year old recruits from the historical range to the expanded range, variable post-settlement survival of those recruits in the expanded range in relation to their natal origin, and that El Niño Southern Oscillation may play a role in long distance dispersal.

cdm_data_type = Other
VARIABLES:
CLNo (unitless)
CapLabel (unitless)
SiteDescription (unitless)
SiteCode (unitless)
latitude (degrees_north)
longitude (degrees_east)
SiteCodeLetter_cap (unitless)
Whelk_ID (unitless)
TissueType (unitless)
Year (unitless)
ExtractionCap (unitless)
DateOfExtraction (unitless)
PerformedBy (unitless)
OriginalCalculatedConcentration (ng/ul)
... (29 more variables)


[Guaymas Basin 2014 Organic Matter C:N Ratio] - Organic matter C:N ratios from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)

Summary:
Organic matter C:N ratios from sediment cores P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

cdm_data_type = Other
VARIABLES:
core (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_water (Depth, meters (m))
core_sample (unitless)
depth_cmbsf (Depth, centimeters (cm))
CtoN_ratio (Cto N Ratio, unitless)
time (seconds since 1970-01-01T00:00:00Z)


[Guaymas Basin 2014 Organic Matter del13C] - delta 13C values from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)

Summary:
delta 13C values from sediment cores P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

cdm_data_type = Other
VARIABLES:
core (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_water (Depth, meters (m))
core_sample (unitless)
depth_cmbsf (Depth, centimeters (cm))
Orgmatter_del13C (Orgmatter Del13 C, per thousand)
time (seconds since 1970-01-01T00:00:00Z)


[Guaymas Basin 2014 Organic Matter del15N] - delta 15N values from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)

Summary:
delta 15N values from sediment cores P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

cdm_data_type = Other
VARIABLES:
core (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_water (Depth, meters (m))
core_sample (unitless)
depth_cmbsf (Depth, centimeters (cm))
Orgmatter_del15N (Orgmatter Del15 N, per thousand)
time (seconds since 1970-01-01T00:00:00Z)


[Guaymas Basin 2014 Si] - Porewater Si concentrations from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)

Summary:
Porewater Si concentrations from sediment cores P3, P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

cdm_data_type = Other
VARIABLES:
core (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_water (Depth, meters (m))
core_sample (unitless)
depth_cmbsf (Depth, centimeters (cm))
Si (Mass Concentration Of Silicate In Sea Water, millimoles per liter (mmol/L))
time (seconds since 1970-01-01T00:00:00Z)


[Guaymas Basin 2014 TOC] - TOC concentrations from sediment cores collected on the Guaymas Basin Ridge flanks and the Sonora Margin from R/V El Puma during October 2014 (RAPID proposal: Site characterization cruise to document the active and extensive subsurface biosphere in the Guaymas Basin)

Summary:
TOC concentrations from sediment cores P6, P10, P11, P12, and P13, collected on the Guaymas Basin Ridge flanks and the Sonora Margin. Sediment cores were collected from R/V El Puma, the Pacific Coast research vessel of the Autonomous University of Mexico, leaving Guaymas on October 14, 2014, and heading to Mazatlan on October 27, 2014.

cdm_data_type = Other
VARIABLES:
core (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_water (Depth, meters (m))
core_sample (unitless)
depth_cmbsf (Depth, centimeters (cm))
TOC (percent weight)
time (seconds since 1970-01-01T00:00:00Z)


[Guaymas Basin MOC CTD] - MOCNESS-CTD Data from Guaymas Basin vent region, AII-112-28, 1985 from R/V Atlantis II AII-112-28, July 1985 (Benthic Ecology of Soft Sediments Associated with Hydrothermal Vents)

Summary:
MOCNESS-CTD Data from Guaymas Basin vent region, AII-112-28, 1985 from R/V Atlantis II AII-112-28, July 1985.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
tow (unitless)
year (unitless)
month (unitless)
day (unitless)
time_start_local (HHMM)
time_end_local (HHMM)
lat_start (Latitude, decimal degrees)
lon_start (decimal degrees)
latitude (degrees_north)
longitude (degrees_east)
depth_interval (Depth, meters)
tow_type (unitless)
num_samples (unitless)
comment (unitless)
yrday_local (unitless)
net (unitless)
press (decibars)
temp (Temperature, degrees Celsius)
cond_sal (unitless)
angle (degrees)
flow_cnts (unitless)
hor_spd (m/min)
vert_vel (m/min)
vol_filt (meters^3)


[Guaymas Dissolved Radium AT42-05] - Dissolved radium isotope activity around Guaymas Basin from samples collected by CTD and HOV Alvin during R/V Atlantis cruise AT42-05 in November 2018 (Validation of a New Geochemical Approach to Constrain Deep Sea Porewater Residence Times and Advection Rates: Applications to Biogeochemical Cycling at Guaymas Basin)

Summary:
This dataset presents dissolved radium isotope activities around Guaymas Basin.

cdm_data_type = Other
VARIABLES:
Collection_Method (unitless)
Alvin_Dive_Number (unitless)
Core_Number (unitless)
Cast (unitless)
depth (m)
Depth_cmbsf (Depth, centimeters below seafloor (cmbsf))
time (Date Time, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Sample_Volume (liters (L))
Ra223_Activity (dpm/100L)
Ra223_Unc (dpm/100L)
Ra224_Activity (dpm/100L)
Ra224_Unc (dpm/100L)
Ra226_Activity (dpm/100L)
Ra226_Unc (dpm/100L)
Ra228_Activity (dpm/100L)
Ra228_Unc (dpm/100L)


[Guaymas Sedimentary Radium AT37-06] - Sedimentary radium isotope activity around Guaymas Basin from samples collected by HOV Alvin during R/V Atlantis cruise AT37-06 in December 2016 (Validation of a New Geochemical Approach to Constrain Deep Sea Porewater Residence Times and Advection Rates: Applications to Biogeochemical Cycling at Guaymas Basin)

Summary:
This dataset presents sedimentary radium isotope activities around Guaymas Basin.

cdm_data_type = Other
VARIABLES:
Alivn_Dive_Num (unitless)
Core_Num (unitless)
Depth_Below_SWI (Depth, centimeters (cm))
time (Date Time, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Filter_Mass (grams (g))
Ra224_Activity (dpm/g)
Ra224_Unc (dpm/g)
Th228_Activity (dpm/g)
Th228_Unc (dpm/g)


[Guaymas Water Column Radium AT37-06] - Dissolved radium isotope activity around Guaymas Basin from samples collected by CTD and HOV Alvin during R/V Atlantis cruise AT37-06 in December 2016 (Validation of a New Geochemical Approach to Constrain Deep Sea Porewater Residence Times and Advection Rates: Applications to Biogeochemical Cycling at Guaymas Basin)

Summary:
This dataset presents dissolved radium isotope activities around Guaymas Basin.

cdm_data_type = Other
VARIABLES:
Collection_Method (unitless)
Alvin_Dive_Number (unitless)
Cast (unitless)
depth (m)
Core_Number (unitless)
time (Date Time, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Sample_Volume (liters (L))
Ra223_Activity (dpm/100L)
Ra223_Unc (dpm/100L)
Ra224_Activity (dpm/100L)
Ra224_Unc (dpm/100L)
Ra226_Activity (dpm/100L)
Ra226_Unc (dpm/100L)
Ra228_Activity (dpm/100L)
Ra228_Unc (dpm/100L)


[Gulf of Alaska Al and Mn - Surface Samples] - Dissolved aluminum (Al) and manganese (Mn) and total dissolvable Al and Mn from surface water samples collected during three cruises in 2010 in the northern Gulf of Alaska (US GEOTRACES Pacific Section-Shipboard Al, Mn and Fe)

Summary:
Water samples were collected along a transect during three cruises in 2010 (7-9 April, 5-7 May, and 27-29 July) in the northern Gulf of Alaska, from the mouth of the Copper River to about 50 km past the shelf break. Surface samples were collected by underway pumping using Teflon-lined tubing, using a method modified from Vink et al. (2000). Filtered dissolved metal surface samples were collected using a 0.45 µm in-line Acropore filter under N₂ pressure. Water samples were processed in the shipboard clean lab within three hours of collection. Dissolved samples were filtered using acid-washed 0.45 µm Pall-Supor filters. All samples were acidified to pH 1.8 using Seastar grade HCl within 3 days and stored for 5 years before analysis.

Filtered samples were analyzed for dissolved Al and unfiltered samples were analyzed for total dissolvable Al using Flow Injection Analysis (Resing and Measures 1994) using fluorescent detection of lumogallion. Filtered samples were analyzed for dissolved Mn and unfiltered samples were analyzed for total dissolvable Mn according to the method of Resing and Mottl (1992), which uses spectroscopic detection of leuchomalachite green.

cdm_data_type = Other
VARIABLES:
Latitude_degN (degrees_north)
longitude (Longitude_dege, degrees_east)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
depth (Ysi_depth, m)
Surface_Salinity (PSU)
Distance_from_Shore (kilometers (km))
DAl (nanomolar concentration (nM))
TDAl (nanomolar concentration (nM))
DMn (nanomolar concentration (nM))
TDMn (nanomolar concentration (nM))


[Gulf of Alaska Al and Mn - Vertical Profiles] - Dissolved aluminum (Al) and manganese (Mn) and total dissolvable Al and Mn from subsurface water samples collected during three cruises in 2010 in the northern Gulf of Alaska (US GEOTRACES Pacific Section-Shipboard Al, Mn and Fe)

Summary:
Water samples were collected along a transect during three cruises in 2010 (7-9 April, 5-7 May, and 27-29 July) in the northern Gulf of Alaska, from the mouth of the Copper River to about 50 kilometers past the shelf break. Vertical profiles were collected using Teflon-lined Niskin bottles attached to a Spectra™ (Dyneema) line and triggered using Teflon-lined messengers. Additionally, profiles of salinity, temperature, fluorescence, and turbidity were measured with a Seabird SBE16 CTD, deployed at the same time as the collection of the subsurface water samples. Water samples were processed in the shipboard clean lab within three hours of collection. Dissolved samples were filtered using acid-washed 0.45-micrometer Pall-Supor filters. All samples were acidified to pH 1.8 using Seastar grade HCl within 3 days and stored for 5 years before analysis.

Filtered samples were analyzed for dissolved aluminum (Al) and unfiltered samples were analyzed for total dissolvable Al using Flow Injection Analysis (Resing and Measures 1994) using fluorescent detection of lumogallion. Filtered samples were analyzed for dissolved manganese (Mn) and unfiltered samples were analyzed for total dissolvable Mn according to the method of Resing and Mottl (1992), which uses spectroscopic detection of leuchomalachite green.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Station (unitless)
depth (m)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Latitude_degN (degrees_north)
longitude (Longitude_dege, degrees_east)
DAl (nanomolar concentration (nM))
TDAl (nanomolar concentration (nM))
DMn (nanomolar concentration (nM))
TDMn (nanomolar concentration (nM))


[Gulf of Alaska copepods: annotated transcriptomes] - Annotated de novo transcriptomes generated from six co-occurring species of calanoid copepods from the R/V Tiglax TXF18, TXS19, TXF15, TXF17 in the Gulf of Alaska from 2015-2019 (Collaborative Proposal: Optimizing Recruitment of Neocalanus copepods through Strategic Timing of Reproduction and Growth in the Gulf of Alaska)

Summary:
The dataset includes the annotation files of nine high-quality de novo transcriptomes generated from shotgun assemblies of short-sequence reads. The species are ecologically-important members of sub-arctic North Pacific marine zooplankton communities. The de novo assemblies included one generated several years ago plus eight new ones generated from six co-occurring species of calanoid copepods in the Gulf of Alaska. The transcriptomes include the first published ones for Neocalanus plumchrus, Neocalanus cristatus, Eucalanus bungii and Metridia pacifica and three for Neocalanus flemingeri and two for Calanus marshallae. Total RNA from single individuals was used to construct gene libraries that were sequenced on an Illumina Next-Seq platform. Short-sequence reads were assembled with Trinity software and resulting transcripts were annotated using the SwissProt database with additional functional annotation using gene ontology terms and enzyme function. The annotations files are the first ones published for these species. The integrated dataset can be used for quantitative inter- and intra-species comparisons of gene expression patterns across biological processes using the annotations.

These data are further described in the following publications: Hartline, et al. (2023) (DOI: 10.1038/s41597-023-02130-1), Roncalli, et al. (2022) (DOI: 10.1111/mec.16354), and Roncalli, et al. (2019) (DOI: 10.1038/s42003-019-0565-5)

cdm_data_type = Other
VARIABLES:
seq_id (unitless)
Genbank_accession (unitless)
Species (unitless)
Station (unitless)
latitude (degrees_north)
longitude (degrees_east)
Collection_date (unitless)
Depth_range (meters (m))
Life_stage (unitless)
Sex (unitless)
Entry (unitless)
... (20 more variables)


[Gulf of Finland CDOM Absorption Coefficients] -  (Transforming our understanding of DIC Photoproduction in Oceanic Waters)

Summary:
These data are chromophoric dissolved organic matter (CDOM) Naperian absorption coefficients from the LightCycle DOM photodegradation experiments conducted in the western Gulf of Finland, Baltic Sea. The LightCycle experiments were conducted as a part of the AQUACOSM JOMEX project: Systems Responses to A Pulse of Dissolved Organic Carbon, at the Tvärminne Mesocosm Facility (TMF, Tvärminne Zoological Station (TZS), University of Helsinki).

The JOMEX experiment ran from 26 June to 10 July 2019 and the mesocosms were divided into three treatment groups: 1) three control mesocosms with no humic substances or nutrients added, 2) three humic-amended mesocosms with only humic substances added to a final concentration of 2 mg L−1 in each mesocosm and three humic+nutrients-amended mesocosms with humic substances (2 mg L−1 final concentration) and 3) NH4Cl and KH2PO4 (80 μg L−1 N and 20 μg L−1 P final concentrations) added.

Surface (1 m) water samples for the LightCycle experiments were collected from one each of control, humic-amended and humic+nutrients-amended mesocosms, immediately after the amendment (day 1) and 2, 5, 7, 9 and 12 days after the amendment (days 3, 6, 8, 10 and 13). These water samples were filtered with 0.2 mm filters and irradiated under a solar simulator.

CDOM absorbance at different irradiation time points were measured for these experiments using a Shimadzu UV-2501PC UV-VIS recording spectrophotometer or an Agilent 8453 UV-visible Spectrophotometer, and converted to Naperian absorption coefficients.

The measurements of CDOM absorption and the subsequent calculation of CDOM fading (decrease in absorption) offered clues to the degradation of CDOM, and provided insights into the potential of photochemistry to remove added terrestrial dissolved organic matter (DOM) and the interactions of DOM photochemistry with eutrophication in this Baltic Sea system, where there are increasing concerns that climate change and anthropogenic activities can lead to increased terrestrial input of humic substances to surface waters and browning of surface waters.

These data were collected by Kun Ma and Jay Brandes of the Skidaway Institute of Oceanography, Department of Marine Sciences, University of Georgia.

cdm_data_type = Other
VARIABLES:
Irradiation_time (hours (h))
... (554 more variables)


[Gulf of Maine Hg] - Mercury, methylmercury, nutrients, and physicochemical measurements from water column samples collected in the Gulf of Maine and Penobscot Estuary during several cruises in 2023 and 2024 (Collaborative Research: The effects of terrestrial organic matter inputs on coastal mercury cycling, methylmercury production and bioaccumulation)

Summary:
This dataset includes water chemistry data from Gulf of Maine (GoM) cruises in April, August, and November 2023, and April 2024, as well as from two trips to the Penobscot River and Estuary in August 2023 and April 2024. This includes mercury (Hg), methylmercury (MeHg) in the water column, nutrients, and physicochemical data.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
Cruise_Name (unitless)
time (Date_time_utc, seconds since 1970-01-01T00:00:00Z)
latitude (Latitude_n, degrees_north)
longitude (Longitude_w, degrees_east)
WaterColumn_Depth (meters (m))
Station_Num (unitless)
Sample_ID (unitless)
depth (Sample_depth_m, m)
Temp (Degrees Celsius (°C))
Salinity (Pratical Salinity Units (psu))
Oxygen (micromoles per kilogram (µmol/kg))
AOU (micromoles per kilogram (µmol/kg))
Bulk_THg (picomoles (pM))
pTHg (picomoles (pM))
Bulk_MeHg (picomoles (pM))
pMeHg (picomoles (pM))
Percent_MeHg (unitless (percent))
Percent_pMeHg (unitless (percent))
DOC (micromolar (µM))
PON (micrograms per Liter (µg/L))
POC (micrograms per Liter (µg/L))
Chl_a (micrograms per Liter (µg/L))
Pha (micrograms per Liter (µg/L))
... (18 more variables)


[Gulf of Mexico bottom water analysis] - Chemical analysis from sediment core bottom water samples collected in the northern Gulf of Mexico, May 2017 (Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2)

Summary:
This dataset includes results of analysis on sediment core bottom water samples collected from the northern Gulf of Mexico in May 2017 - initial pH, alkalinity, sulfate, DIC, and DOC.

cdm_data_type = Other
VARIABLES:
sample_id (unitless)
site (unitless)
latitude (degrees_north)
longitude (degrees_east)
ISO_DateTime_Local_collected (ISO Date Time Local Collected, unitless)
num_replicate_bottles (bottles)
initial_pH (Initial P H, NBS scale)
initial_pH_stdev (Initial P H Stdev, NBS scale)
Alk (milliMoles)
Alk_stdev (milliMoles)
Sulfate (milliMoles)
Sulfate_stdev (milliMoles)
DIC (microMoles)
DIC_stdev (microMoles)
DOC (microMoles)
DOC_stdev (microMoles)


[Gulf of Mexico NO3 isotopes] - Water column nitrate+nitrite d15N and d18O from samples collected during R/V Pelican and R/V F.G. Walton Smith cruises in the Gulf of Mexico and Florida Straits between 2011 and 2018 (Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean)

Summary:
This data set includes water column nitrate+nitrite d15N and d18O measurements from the Gulf of Mexico and Florida Straits. These measurements were used to address whether Mississippi River nitrate is entrained in Loop Current waters and potentially exported from the Gulf of Mexico to the North Atlantic.  Water samples were collected during R/V Pelican and R/V F.G. Walton Smith cruises in the Gulf of Mexico and Florida Straits between 2011 and 2018.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
Sampling_Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
SigmaTheta (Sea Water Sigma Theta, unitless)
NO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micro molar (µM))
NO3_NO2_d15N (Mole Concentration Of Nitrate In Sea Water, per mil (0/00) vs. N2 in air)
NO3_NO2_d18O (Mole Concentration Of Nitrate In Sea Water, per mil (0/00) vs. VSMOW)
sal (Practical Salinity Units (PSU))
temp (Temperature, degrees Celsius)


[Gulf of Mexico pore water analysis] - Chemical analysis from sediment core pore water samples collected in the northern Gulf of Mexico, May 2017 (Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2)

Summary:
This dataset includes results of analysis on sediment cores collected from the northern Gulf of Mexico in May 2017 - initial pH, alkalinity, sulfate, DIC, Fe, NH4, sulfide, and DOC.

cdm_data_type = Other
VARIABLES:
site (unitless)
latitude (degrees_north)
longitude (degrees_east)
Core (unitless)
Depth_cm (Depth, centimeters)
Initial_pH (Initial P H, NBS scale)
Alkalinity_mM (Alkalinity M M, milliMoles)
Sulfate_mM (Sulfate M M, milliMoles)
Sulfate_stdev (milliMoles)
DIC_mM (DIC M M, milliMoles)
Fe_uM (Fe U M, microMoles)
NH4_uM (NH4 U M, microMoles)
Sulfide_uM (Sulfide U M, microMoles)
DOC_uM (DOC U M, microMoles)


[Gulf of Mexico sediment core metadata] - Sediment core sample metadata collected in the northern Gulf of Mexico, May 2017 (Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2)

Summary:
This dataset includes metadata on sediment cores collected from the northern Gulf of Mexico in May 2017 - location, date and time of sample collection and processing, and which analyses were performed on each core.

cdm_data_type = Other
VARIABLES:
site (unitless)
latitude (degrees_north)
longitude (degrees_east)
core (unitless)
date_processed (unitless)
PW (unitless)
Ox (unitless)
phi (unitless)
Pb210 (unitless)
sol (unitless)


[Gulf of Mexico sediment core oxygen profiles] - Oxygen profiles from sediment core samples collected in the northern Gulf of Mexico, May 2017 (Toward an Improved Understanding of Blue Carbon: The Role of Seagrasses in Sequestering CO2)

Summary:
This dataset includes oxygen profiles from sediment core samples collected in the northern Gulf of Mexico in May 2017.

cdm_data_type = Other
VARIABLES:
site (unitless)
latitude (degrees_north)
longitude (degrees_east)
core (unitless)
profile (unitless)
ISO_DateTime_Local_collected (ISO Date Time Local Collected, unitless)
ISO_DateTime_Local_scan (ISO Date Time Local Scan, unitless)
depth_cm (Depth, centimeters)
O2_uM (O2 U M, microMoles)


[gut equal] - Microsphere counts from gut samples for equal microsphere concentration incubations (Collaborative Proposal: Are all cell surfaces the same? The effects of particle surface property on predator-prey interactions in the microbial loop)

Summary:
Cell surface properties can strongly mediate microbial interactions with predators in soil and host-pathogen systems. Yet, the role of microbial surface properties in avoiding or enhancing predation in the ocean remains a research frontier. Appendicularians are globally abundant marine suspension feeders that capture marine microorganisms in a complex mucous filtration system. We used artificial microspheres to test whether the surface properties of prey particles influenced selection by the appendicularian, Oikopleura dioica . Across microsphere sizes (0.5, 1, 2 and 3 µm) and concentrations (~103-106 particles ml-1), which were varied to represent realistic microbial communities, carboxylate- and amine-modified particles were handled differently by the appendicularians. The carboxylate-modified particles were enriched in the gut while the amine-modified particles were enriched in the mucous filters, leading to different particle fates.

This dataset includes microsphere counts from appendicularian guts following feeding incubations with two microsphere sizes (for each functionalized microsphere) available in equal concentration.

cdm_data_type = Other
VARIABLES:
Incubation (Unitless)
Duration_min (Minutes)
Animal_ID (Unitless)
C_1_um_gut (Count per gut)
C_2_um_gut (Count per gut)
A_1_um_gut (Count per gut)
A_2_um_gut (Count per gut)


[gut varied] - Microsphere counts from Oikopleura dioica guts following feeding incubations with three microsphere sizes (for each functionalized microsphere) available in environmentally relevant concentrations (Collaborative Proposal: Are all cell surfaces the same? The effects of particle surface property on predator-prey interactions in the microbial loop)

Summary:
Cell surface properties can strongly mediate microbial interactions with predators in soil and host-pathogen systems. Yet, the role of microbial surface properties in avoiding or enhancing predation in the ocean remains a research frontier. Appendicularians are globally abundant marine suspension feeders that capture marine microorganisms in a complex mucous filtration system. We used artificial microspheres to test whether the surface properties of prey particles influenced selection by the appendicularian, Oikopleura dioica.  Across microsphere sizes (0.5, 1, 2 and 3 µm) and concentrations (~103-106 particles ml-1), which were varied to represent realistic microbial communities, carboxylate- and amine-modified particles were handled differently by the appendicularians. The carboxylate-modified particles were enriched in the gut while the amine-modified particles were enriched in the mucous filters, leading to different particle fates.

This dataset includes microsphere counts from appendicularian guts following feeding incubations with three microsphere sizes (for each functionalized microsphere) available in environmentally relevant concentrations.

cdm_data_type = Other
VARIABLES:
Incubation (Unitless)
Duration_min (Minutes)
Animal_ID (Unitless)
Replicate (Number)
C_0_5_um_grid (Count per grid)
C_1_um_grid (Count per grid)
C_3_um_grid (Count per grid)
A_0_5_um_grid (Count per grid)
A_1_0_um_grid (Count per grid)
A_3_um_grid (Count per grid)


[H. longicornis Population Structure] - Haloptilus longicornis population structure (Atlantic Ocean) - Microsatellite data. (Basin-scale genetics of marine zooplankton)

Summary:
Haloptilus longicornis population structure (Atlantic Ocean) - Microsatellite data.

cdm_data_type = Other
VARIABLES:
station (unitless)
sample_id (unitless)
diploidGenotype1_HALOMS175 (Diploid Genotype1 HALOMS175, count)
diploidGenotype2_HALOMS175 (Diploid Genotype2 HALOMS175, count)
diploidGenotype1_HALOMS27 (Diploid Genotype1 HALOMS27, count)
diploidGenotype2_HALOMS27 (Diploid Genotype2 HALOMS27, count)
diploidGenotype1_HALOMS32 (Diploid Genotype1 HALOMS32, count)
diploidGenotype2_HALOMS32 (Diploid Genotype2 HALOMS32, count)
diploidGenotype1_HALOMS86 (Diploid Genotype1 HALOMS86, count)
diploidGenotype2_HALOMS86 (Diploid Genotype2 HALOMS86, count)
diploidGenotype1_HALOM264 (Diploid Genotype1 HALOM264, count)
diploidGenotype2_HALOM264 (Diploid Genotype2 HALOM264, count)
diploidGenotype1_HALOMS91 (Diploid Genotype1 HALOMS91, count)
diploidGenotype2_HALOMS91 (Diploid Genotype2 HALOMS91, count)
diploidGenotype1_HALOMX66 (Diploid Genotype1 HALOMX66, count)
diploidGenotype2_HALOMX66 (Diploid Genotype2 HALOMX66, count)


[HADES-K bacterial biomarker phospholipid fatty acid (PLFA)] - Sample log for HADESK bacterial biomarker phospholipid fatty acid content from sediment cores collected on R/V Thomas G. Thompson cruise TN309, May 2014 (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)

Summary:
This dataset contains the sample log for HADESK bacterial biomarker phospholipid fatty acid (PLFA) content from sediment push cores. The same samples were also used for the organic matter (OM) analysis.  Samples were taken in the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309, May 2014.

cdm_data_type = Other
VARIABLES:
sample (unitless)
cruise_id (unitless)
dive (unitless)
site (unitless)
date_utc (unitless)
station (unitless)
core (unitless)
NiWa_id (Ni Wa Id, unitless)
horizon_core_cm (centimeters)


[HADES-K Nereus dives - geo-referenced megafauna counts] - Nereus dive geo-referenced megafaunal transect data from the Kermadec Trench during cruise TN309 on RV/Thompson, May 2014 (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)

Summary:
Nereus dive geo-referenced megafaunal transect data from the Kermadec Trench during cruise TN309 on RV/Thompson, May 2014.

cdm_data_type = Other
VARIABLES:
date_start (unitless)
dive (unitless)
Time2_GMT (unitless)
COG (Course Over Ground, degrees)
SOG (Speed Over Ground, knots)
depth (m)
Heading (degrees)
Temp (Temperature, degrees Celsius)
Altitude (meters)
Distance (meters)
Distance_x (meters)
Distance_y (meters)
Original_x (decimal degrees)
Original_y (decimal degrees)
New_x (decimal degrees)
New_y (decimal degrees)
longitude (degrees_east)
latitude (degrees_north)
Ophiuroid_sp1 (organisms)
Ophiuroid_sp2 (organisms)
Anemone_sp1 (organisms)
Anemone_sp2 (organisms)
Anemone_sp3 (organisms)
Anemone_sp4 (organisms)
Anemone_sp5 (organisms)
Anemone_sp6 (organisms)
... (33 more variables)


[HADES-K Sediment Macrofaunal Diversity] - Raw counts of macrofauna identified in sediment samples from the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014. (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)

Summary:
This dataset includes raw counts of macrofauna families identified in push core samples taken in the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014.

cdm_data_type = Other
VARIABLES:
USGS_SampleID (USGS Sample ID, unitless)
SampleYear (Sample Year, unitless)
Station (unitless)
DateCollected (Date Collected, unitless)
Gear (unitless)
USGS_CoreID (USGS Core ID, unitless)
Site (unitless)
SampleType1 (Sample Type1, unitless)
Location (unitless)
Fraction (centimeters)
SieveSize (Sieve Size, microns)
CoreDiameter (Core Diameter, centimeters)
CoreArea (Core Area, centimeters^2)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
NIWA_id (unitless)
ACROCIRRIDAE (individuals)
AMPHARETIDAE (individuals)
CIRRATULIDAE (individuals)
FLABELLIGERIDAE (individuals)
NEPHTYIDAE (individuals)
OWENIIDAE (individuals)
PARAONIDAE (individuals)
SYLLIDAE (individuals)
... (7 more variables)


[HADES-K Sediment Meiofaunal Diversity] - Raw counts of meiofauna identified in sediment samples from the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014. (Controls on Hadal Megafaunal Community Structure: a Systematic Examination of Pressure, Food Supply, and Topography)

Summary:
This dataset includes raw counts of meiofauna identified in push core samples taken in the Kermadec Trench in the Southwest Pacific, 4000 to ~10,000m from the RV/ Thomas G. Thompson during cruise TN309 (HADES-K), May 2014.

cdm_data_type = Other
VARIABLES:
USGS_SampleID (USGS Sample ID, unitless)
Station (unitless)
Site (unitless)
Location (unitless)
depth (m)
DateCollected (Date Collected, unitless)
latitude (degrees_north)
longitude (degrees_east)
Overall_Sample_Progress (unitless)
USGS_CoreID (USGS Core ID, unitless)
Fraction (centimeters)
SieveSize (Sieve Size, microns)
NIWA_id (unitless)
ANNELIDA (individuals)
ARTHROPODA (individuals)
Crustacea (individuals)
Amphipoda (individuals)
Copepoda (individuals)
Isopoda (individuals)
Ostracoda (individuals)
Kinorhyncha (individuals)
Bivalvia (individuals)
Gastropoda (individuals)
Sipuncula (individuals)
Nematoda (individuals)
... (4 more variables)


[Halomethane concentrations in cell culture] - Halomethane concentrations in cell culture (The role of organic and metal cofactors on the biogenic synthesis of halogenated volatile hydrocarbons)

Summary:
Halomethane concentrations in cell culture

cdm_data_type = Other
VARIABLES:
Strain (unitless)
Species (unitless)
Clade (unitless)
Time_elapsed_hours (hours)
cells_per_ml (cells per milliliter)
CH3Br (CH3 BR, picomoles per liter)
CH3I (CH3 I, picomoles per liter)
CH3Cl (CH3 CL, picomoles per liter)
CHBr3 (picomoles per liter)


[Hard Substrates Community Matrix, AT37-13 & AT42-03] - Matrix of taxon by sample for hard substrates collected by HOV Alvin during R/V Atlantis cruise AT37-13 and AT42-03 in the Pacific margin of Costa Rica in 2017 and 2018. (Collaborative research: Quantifying the biological, chemical, and physical linkages between chemosynthetic communities and the surrounding deep sea)

Summary:
Matrix of taxon (columns) by sample (rows) for substrates collected using HOV Alvin on R/V Atlantis cruise AT37-13 in the Pacific Ocean off Costa Rica from May to June 2017

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Sample (unitless)
Alvin_Dive (unitless)
Habitat (unitless)
Acari (unitless)
Amphipoda (unitless)
Anomura (unitless)
Brachyura (unitless)
Cumacea (unitless)
Isopoda (unitless)
Ostracoda (unitless)
Shrimp (unitless)
Tanaidacea (unitless)
Anthozoa (unitless)
Asteroidea (unitless)
Ophiuroidea (unitless)
Aplacophora (unitless)
Plathelminthes (unitless)
Bivalvia (unitless)
Gastropoda (unitless)
Polyplacophora (unitless)
Polychaeta (unitless)
Hydrozoa (unitless)
Sipuncula (unitless)


[Hard Substrates Isotopes, AT37-13 & AT42-03] - Averages and standard deviation across species for all macrofauna found on each carbonate rock collected during R/V Atlantis cruise AT37-13 in the Pacific margin of Costa Rica from May to June 2017 (Collaborative research: Quantifying the biological, chemical, and physical linkages between chemosynthetic communities and the surrounding deep sea)

Summary:
Averages and standard deviation across species for all macrofauna found on each carbonate rock collected during R/V Atlantis cruise AT37-13 in the Pacific margin of Costa Rica from May to June 2017

cdm_data_type = Other
VARIABLES:
cruise (unitless)
site (unitless)
experiment (unitless)
substrate_number_and_dive (unitless)
habitat (unitless)
d13C_avg (D13 C Avg, per mil)
d15N_avg (D15 N Avg, per mil)
d13C_stdev (D13 C Stdev, per mil)
d15N_stdev (D15 N Stdev, per mil)


[HATS Size-fractionated Marine Particles] - Size fractionated particulate trace metal concentrations from in-situ filtration near Station ALOHA during four R/V Kilo Moana cruises between August 2022 and August 2023 (Hawaii Aerosol Time-Series (HATS):Quantifying Marine Dust Deposition and Composition in an Oligotrophic Gyre)

Summary:
Size-fractionated particles were collected via in-situ filtration aboard the R/V Kilo Moana on four separate cruises (KM2210, KM2305, KM2306, and KM2311) at the Hawaii Ocean Time-Series study site, Station ALOHA, between 2022-08-30 to 2023-08-14. Marine particulate trace element concentrations were assessed via magnetic sector inductively coupled plasma mass spectrometry (ICP-MS). Many of these trace elements are required by marine organisms and can act as tracers of oceanographic processes. These data were used as part of the Hawaii Aerosol Time-Series (HATS) project to observe how seasonally variable atmospheric deposition of aerosol trace elements to the ocean impacts the compositional inventories of size-fractionated upper water column particulate trace elements.

cdm_data_type = Other
VARIABLES:
Station (unitless)
latitude (degrees_north)
longitude (degrees_east)
Cruise_number (unitless)
Cruise_Month (unitless)
Year (unitless)
depth (m)
Al_LPL_CONC_PUMP (nanomoles per liter (nmol/L))
Al_LPT_CONC_PUMP (nanomoles per liter (nmol/L))
Al_SPL_0pt2_CONC_PUMP (nanomoles per liter (nmol/L))
Al_SPL_0pt8_CONC_PUMP (nanomoles per liter (nmol/L))
Al_SPT_0pt2_CONC_PUMP (nanomoles per liter (nmol/L))
Al_SPT_0pt8_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_LPL_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_LPT_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_SPL_0pt2_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_SPL_0pt8_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_SPT_0pt2_CONC_PUMP (nanomoles per liter (nmol/L))
Ba_SPT_0pt8_CONC_PUMP (nanomoles per liter (nmol/L))
Ca_LPL_CONC_PUMP (nanomoles per liter (nmol/L))
... (450 more variables)


[HATS Total Aerosols] - Weekly integrated bulk total aerosol trace element concentrations from the Hawaii Aerosol Time-series during January 2022 to October 2023 (Hawaii Aerosol Time-Series (HATS):Quantifying Marine Dust Deposition and Composition in an Oligotrophic Gyre)

Summary:
This study aimed to quantify seasonal aerosol trace element fluxes and evaluate their variability and potential sources over a two-year period in the North Pacific subtropical gyre (NPSG). We established the Hawaii Aerosol Time Series (HATS), a sampling program at Makai Research Pier on O'ahu (21.32° N, 157.67° W), to collect weekly-integrated total suspended particle samples. Sampling was sector-controlled to collect when winds were onshore at a velocity of greater than 0.5 meters per second (m/s). The sampler was fitted with a GEOTRACES-style, custom-made manifold holding 12 acid-washed, 47-millimeter (mm) diameter Whatman-41 filters. Three filters were reserved for total digestion. The digestion procedure is a three-step process where the samples were sequentially acidified with concentrated double-distilled nitric acid, hydrofluoric acid, and hydrogen peroxide, heated to ~140 degrees Celsius (°C) on a hotplate overnight, and then taken to near dryness. Following the final dry-down, samples were brought up in 0.32 M optima HNO3 and then analyzed for a mix of primarily lithogenic and anthropogenically associated trace elements (including Al, Co, Cr, Cu, Fe, Mn, Ni, Pb, Ti, V, and Zn) via quadrupole inductively coupled plasma mass spectrometry (ICP-MS).

cdm_data_type = Other
VARIABLES:
Deployment (unitless)
latitude (degrees_north)
longitude (degrees_east)
Julian_Day (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Start_Day (unitless)
Start_Month (unitless)
Start_Year (unitless)
Start_Time_UTC (unitless)
End_ISO_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
End_Day (unitless)
End_Month (unitless)
End_Year (unitless)
End_Time_UTC (unitless)
... (34 more variables)


[Hawaiian crustose coralline algae dissolved organic matter] - Fluorescent characteristics of the dissolved organic exudates of two species of crustose coralline algae in two water treatments and their effect on the microbial community cell count (Collaborative Research: Dissolved organic matter feedbacks in coral reef resilience: The genomic & geochemical basis for microbial modulation of algal phase shifts)

Summary:
Fluorescent characteristics of the dissolved organic exudates of two species of crustose coralline algae (Hydrolithon reinboldii and Porolithon onkodes) in two water treatments (pre-filtered and unfiltered) and their effect on the microbial community cell count.

cdm_data_type = Other
VARIABLES:
Water (unitless)
Inhabitant (unitless)
Replicate (unitless)
Timepoint (unitless)
Hours (hours)
Cells (cells per microliter (cells uL-1))
delta_Cells (cells per microliter (cells uL-1))
Surface_Area (square centimeters (cm^2))
Ultra_Violet_Humic_like (Raman units of water (RU))
Marine_Humic_like (Raman units of water (RU))
Visible_Humic_like (Raman units of water (RU))
Tryptophan_like (Raman units of water (RU))
Tyrosine_like (Raman units of water (RU))
Phenylalanine_like (Raman units of water (RU))
Fulvic_Acid_like (Raman units of water (RU))
DOC (micromoles per liter (umol L-1))


[Hawaiian sponge cryptofauna] - Specimen vouchers of sponges collected in a study of hidden sponge biodiversity within the Hawaiian reef cryptofauna conducted on Oahu, Hawaii from 2016 to 2018 (Testing the most striking tropical marine biodiversity gradient on the planet: does it hold for sponges?)

Summary:
Sponges are abundant and conspicuous on the reef surface in productive, continental reefs, but largely vanish from surveys of the oligotrophic reefs of Oceania. However, their diversity in the cryptobiota remains poorly characterized. Here, we explore the contribution of cryptobenthic sponges to overall sponge diversity on 1,750 square meters of reef habitat in Kāne'ohe Bay and Waimanalo in the island of O'ahu, Hawai'i. We also assessed cryptic sponges using 15 square meters of Autonomous Reef Monitoring Structures (ARMS) deployed in this same area. We used integrative taxonomy combining morphology, COI and 28S barcoding to delineate and track species, most of which are poorly known or undescribed. We documented 186 OTUs, 150 of which are new records for the Hawaiian Islands, increasing the known sponge fauna of Kāne'ohe Bay by 3.5 fold, and that of the Hawaiian Islands by 2.5 fold. More than ¾ of the sponge OTUs were cryptobenthic. Reef sampling provided access to 31% (44 OTUs), whereas 52% (75 OTUs) were retrieved exclusively from ARMS. These results illustrate that the interstices of ARMS units provide suitable habitat for settlement of cryptobenthic sponges that would otherwise be impossible to access through traditional field surveys. Tracking species with provisional names, using integrative species delineation anchored to vouchers, images, and DNA barcodes provides a powerful approach for working with such a poorly understood fauna.

cdm_data_type = Other
VARIABLES:
Species (unitless)
latitude (degrees_north)
longitude (Long, degrees_east)
Station (unitless)
Date (unitless)
FMNH_voucher (unitless)
HIMB_voucher (unitless)
Field_ID (unitless)
COI_accession (unitless)
COI_base_pairs (unitless)
COI_blastn_result_1 (unitless)
COI_blastn_result_2 (% similarity)
... (4 more variables)