[Transcriptomics of Phytoplankton Cultures Grown on Various Phosphorus Sources] - Transcriptomics of phytoplankton cultures grown on various phosphorus sources in a laboratory experiment (Phosphonate Utilization by Eukaryotic Phytoplankton: Who, How, and Where?)

Summary:
A laboratory experiment was carried out to characterize the growth and physiological response of three species of eukaryotic phytoplankton grown with inorganic phosphate (+P), without phosphate (-P), and with methylphosphonate (+MPN) and aminoethylphosphonate (+AEPN) as the sole sources of phosphorus (P). Data reported in this dataset are the transcriptomic reads, in biological triplicate, of these culture growth substrate combinations.

cdm_data_type = Other
VARIABLES:
BioProject (unitless)
Biosample (unitless)
Treatment (unitless)
Replicate (unitless)
Organism (unitless)
Tax_ID (unitless)
Strain (unitless)
URL (unitless)


[Transparent Exopolymer Particles (TEP) CTD Bottle Measurements HRS2204] - Transparent Exopolymer Particles (TEP) from CTD samples collected during R/V Hugh R. Sharp cruise HRS2204 from Apr to May 2022 (Collaborative Research: The importance of particle disaggregation on biogeochemical flux predictions)

Summary:
These data include measurements of transparent exopolymer particles (TEP) from CTD bottle water samples collected during a cruise on the Northeast Continental Shelf to study particle disaggregation. One cruise was completed aboard the R/V Hugh R. Sharp from 2022-04-21 through 2022-05-02 (HRS22-04), which visited a variety of stations and hydrodynamic environments associated with the Northeast Continental Shelf of the United States. Stations ranged from Georges Bank and the Great South Channel near the Gulf of Maine, Martha's Vineyard, the mouth of the Sakonnet River near Newport, Rhode Island, and Hudson Canyon near New York. TEP measurements were performed following recently published methods relying on Alcian Blue staining protocols and spectrophotometry. These data were collected as part of a study to clarify the importance of hydrodynamic forces on the cohesion, aggregation, and breakup of marine particles. These data were collected by Dr. Kieran Curran of the University of New Hampshire on the cruise led by Dr. Matthew Rau (chief-sci) of the George Washington University.

cdm_data_type = Other
VARIABLES:
ID (unitless)
Station (unitless)
CTD (unitless)
depth (m)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
TEP_xg (micrograms per liter (ug/L))


[Transplant experiment] - Results of a field transplant experiment using newly-settled Porites corals in Palau in 2023 (Collaborative Research: How do selection, plasticity, and dispersal interact to determine coral success in warmer and more variable environments?)

Summary:
We aimed to investigate whether coral larvae spawned in semi-enclosed lagoons in Palau have the potential to disperse out of the lagoons, settle, and survive on outer reefs. We focused on massive Porites, which is a common mounding coral on both classic and extreme reefs in Palau. We conducted an experiment to determine whether post-settlement survival differs between corals settling on their natal (home) extreme reef or at a classic (away) reef. Adult massive Porites corals were collected from six sites in Palau immediately prior to their spawning season in April 2023. Porites gametes from 3 males and 2 females were used in a bulk cross. Two dpf, larvae were settled on limestone tiles (15 x 15 cm) with crushed CCA used as a cue. Tiles were maintained in individual plastic containers in flow-through ASW tanks at PICRC. Nine days post fertilization, tiles were deployed to their home reef and an away site (n=10 tiles per site). Sixteen days after deployment (25 days post fertilization), tiles were recovered and examined under a dissecting microscope to identify and count surviving individuals. The number of corals was counted on all tiles post transplantation. Light and temperature were quantified at transplant locations at each site using Hobo Pendants (Onset, Wareham, USA).

cdm_data_type = Other
VARIABLES:
Tile_identification (unitless)
Number_Corals (unitless)
Category (unitless)
Location (unitless)
latitude (degrees_north)
longitude (degrees_east)


[trawl catch - CCS] - Trawl catches, abundance, and biomass from F/V Sea Eagle and F/V Frosti cruises in the Northeast Pacific from 2000-2002 as part of the U.S. GLOBEC program (NEP project) (U.S. GLOBEC Northeast Pacific)

Summary:
Trawl catches, abundance, and biomass from F/V Sea Eagle and F/V Frosti cruises in the Northeast Pacific from 2000-2002 as part of the U.S. GLOBEC program

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
ship (unitless)
year (unitless)
cast (unitless)
station_std (unitless)
latitude (degrees_north)
longitude (degrees_east)
lat_end (Latitude, decimal degrees)
lon_end (Longitude, decimal degrees)
depth_w (Depth, meters)
month_local (unitless)
day_local (unitless)
time_local_begin (unitless)
time_local_end (unitless)
inst (unitless)
gear_area_m2 (m2)
min_sample_depth (meters)
max_sample_depth (meters)
dist_towed (km)
vol_net_km3 (km3)
genus_species (unitless)
life_stage (unitless)
weight_caught (kilograms)
num_caught (unitless)
abund_10sup6m3 (number/106 m3)
comments (unitless)


[trawl catch - GoA] - Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program (U.S. GLOBEC Northeast Pacific)

Summary:
Trawl data from 14 R/V Pandalus cruises to the Coastal Gulf of Alaska from 1999-2004 as part of the U.S. GLOBEC program

cdm_data_type = Other
VARIABLES:
cruise_id (text)
ship (text)
year (unitless)
cruise_alt (Text)
Trawl_ID (station+cast numbers)
stn_no (dimensionless)
cast (dimensionless)
stn_std (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
lat_end (Latitude, decimal degrees)
lon_end (Longitude, decimal degrees)
water_depth (meters ?)
month_local (mm (01 to 12))
day_local (dd (01 to 31))
time_start_local (HHMM)
time_end_local (HHMM)
duration (hours)
tow_dist (nautical miles)
tow_speed (knots)
wave_ht (text)
wind_notes (text)
comments (text)
common_name (text)
genus_species (text)
life_stage (text)
abund (dimensionless)


[Trematode Parasite COI Sequences] - COI mtDNA sequences for trematodes from fish collections across the Northern Line Islands and French Polynesia archipelagos collected between 2009 and 2023 (Collaborative Research: Decomposing the effects of diversity on the abundance of marine parasites)

Summary:
The loss of biological diversity is considered one of the principal environmental challenges of the 21st century, and there are hints that this massive reorganization of food webs could affect how parasites are transmitted among hosts. Parasites are often hidden and can be easy to overlook, but they are ecologically important and ubiquitous - so it is important to understand whether we should expect more or fewer of them as biodiversity disappears. Does biodiversity loss increase the abundance of parasites by eroding natural "checks and balances" on transmission? Or does it decrease parasite abundance by removing the free-living biodiversity on which parasites depend? Answers to these questions are urgently needed if we are to mitigate or prevent an uptick in parasite transmission for ecosystems experiencing biodiversity loss.

In a joint collaborative research project among the University of Washington, Scripps Institution of Oceanography at UC San Diego, and California State University Monterey Bay, we created a parasite dataset of unprecedented size and taxonomic resolution. We sampled parasites of coral reef fishes from 19 replicate islands in the central equatorial Pacific to study how biodiversity and parasite burden covary.

This data set contains COI mtDNA sequence accession numbers, collection locations, and life stages for trematodes from the family Microscaphidiidae and Paramphistomatidae from fish collections across the Northern Line Islands and French Polynesia archipelagos collected between 2009 and 2023. Specifically this data set represents 87 Microscaphidiidae samples from the Northern Line Islands and 132 Paramphistomatidae from French Polynesia.

cdm_data_type = Other
VARIABLES:
NCBI_Accession_Number (unitless)
Collection_Location (unitless)
Larval_or_Adult (unitless)


[Trial IDs for spawning experiments] - Identifications of M. beryllina individuals collected in Suisun Bay, California and used in trials for spawning experiments conducted from 2012 to 2013. (Impacts of size-selective mortality on sex-changing fishes)

Summary:
Identifications of M. beryllina individuals collected in Suisun Bay, California and used in trials for spawning experiments conducted from 2012 to 2013.

cdm_data_type = Other
VARIABLES:
trial (unitless)
fish (unitless)
date_end (unitless)
notes (unitless)
tank (unitless)


[trial_a] - Trial A test of the dissolution method for estimates of the 15N2 atom% of incubations (EAGER:  Collaborative Research:  Detection limit in marine nitrogen fixation measurements - Constraints of rates from the mesopelagic ocean)

Summary:
The \u201cdissolution\u201d method to measure N2 fixation rates with 15N2 gas tracer involves the preparation of 15N2-enriched water that is then added to each incubation bottle. Investigators typically measure the 15N2 atom% of the 15N2-enriched inoculum by MIMS, and extrapolate the 15N2 atom% in the incubations based on the inoculum value. Here, we demonstrate that such extrapolation yields inaccurate estimates of the 15N2 atom% of incubations. The latter should be measured directly.

cdm_data_type = Other
VARIABLES:
Sample (unitless)
Baro_Press (unknown)
Time_of_analysis (unitless)
m_z_28 (unitless)
m_z_29 (unitless)
m_z_30 (unitless)
m_z_32 (unitless)
m_z_40 (unitless)
N2_Ar (unitless)
ratio_28_29 (unitless)
ratio_28_30 (unitless)
meas_at_pcnt (unitless)
avg_measured_a_pcnt (unitless)


[trial_b] - Trial B test of the dissolution method for estimates of the 15N2 atom% of incubations (EAGER:  Collaborative Research:  Detection limit in marine nitrogen fixation measurements - Constraints of rates from the mesopelagic ocean)

Summary:
The \u201cdissolution\u201d method to measure N2 fixation rates with 15N2 gas tracer involves the preparation of 15N2-enriched water that is then added to each incubation bottle. Investigators typically measure the 15N2 atom% of the 15N2-enriched inoculum by MIMS, and extrapolate the 15N2 atom% in the incubations based on the inoculum value. Here, we demonstrate that such extrapolation yields inaccurate estimates of the 15N2 atom% of incubations. The latter should be measured directly.

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
time2 (Time, unitless)
Mass_z_28 (unitless)
Mass_z_29 (unitless)
Mass_z_30 (unitless)
Mass_z_32 (unitless)
Mass_z_40 (unitless)
O2_Ar (unitless)
ratio_30_28 (unitless)
atom_pcnt_15N (Atom Pcnt 15 N, unitless)


[Trichodesmiium field metaproteomes - sample provenance] - Trichodesmium sample provenance from samples collected in North Atlantic surface waters, station BATS, and station ALOHA between 2000 and 2018 (Collaborative Research:  Iron and phosphorus balanced limitation of nitrogen fixation in the oligotrophic ocean)

Summary:
Trichodesmium sample provenance collected in North Atlantic surface waters, at station BATS (Bermuda Atlantic Time-series Study), and station ALOHA (A Long-Term Oligotrophic Habitat Assessment) between 2000 and 2018.

cdm_data_type = Other
VARIABLES:
Name (unitless)
Replication (unitless)
Cruise (unitless)
Cruise_station_num (unitless)
Time_sampled (unitless)
Date_sampled (unitless)
Net_size (microns (um))
Filter_size (microns (um))
latitude (degrees_north)
longitude (degrees_east)
time_zone (unitless)


[Trichodesmium AHL metatranscriptomes_AE1409] - Trichodesmium AHL amendment metatranscriptomic reads accessions and metadata (Dissolved Phosphorus Processing by Trichodesmium Consortia: Quantitative Partitioning, Role of Microbial Coordination, and Impact on Nitrogen Fixation)

Summary:
Trichodesmium is a marine, diazotrophic cyanobacterium that plays a central role in the biogeochemical cycling of carbon and nitrogen. Colonies ubiquitously co-occur with a diverse microbiome of heterotrophic bacteria. Here we show that manipulation of the microbiome with quorum sensing acyl homoserine lactone (AHL) molecules significantly modulated rates of N2 fixation by Trichodesmium collected from the western North Atlantic, with both positive and negative effects of varied magnitude. Changes in Trichodesmium N2 fixation did not clearly correlate with changes in microbiome composition or geochemical patterns. Metatranscriptome sequencing revealed significant changes in the relative abundance of microbiome transcripts encoding metabolic functions consistent with quorum sensing responses in model bacteria. There was little overlap in specific microbiome transcriptional responses to AHL addition between stations, and this variability in microbiome gene expression may underpin the heterogeneous changes in Trichodesmium N2 fixation. These data suggest the microbiome could play a large and previously overlooked role in modulating Trichodesmium N2 fixation. This metadata form describes the metatranscriptomic sequencing reads that were used in the study.

cdm_data_type = Other
VARIABLES:
bioproject_accession (unitless)
biosample_accession (unitless)
library_ID (unitless)
title (unitless)
library_strategy (unitless)
library_source (unitless)
library_selection (unitless)
library_layout (unitless)
platform (unitless)
instrument_model (unitless)
design_description (unitless)
filetype (unitless)
assembly (unitless)
filename (unitless)
... (7 more variables)


[Triple oxygen isotopes of respiration and photo-oxidation of DOC] - Triple oxygen isotopes of respiration and photo-oxidation of DOC (Clumped Oxygen Isotope Signature of Marine Dissolved Oxygen)

Summary:
The biogeochemical fluxes that cycle oxygen (O2) play a critical role in regulating Earth's climate and habitability. Triple-oxygen isotope (TOI) compositions of marine dissolved O2 are considered a robust tool for tracing oxygen cycling and quantifying gross photosynthetic O2 production. This method assumes that photosynthesis, microbial respiration, and gas exchange with the atmosphere are the primary influences on dissolved O2 content, and that they have predictable, fixed isotope effects. Despite its widespread use, there are major elements of this approach that remain uncharacterized, including the TOI dynamics of respiration by marine heterotrophic bacteria and abiotic O2 sinks such as the photochemical oxidation of dissolved organic carbon (DOC). Here, we report the TOI fractionation for O2 utilization by two model marine heterotrophs (Vibrio harveyi and Ruegeria pomeroyi DSS-3) and by abiotic photo-oxidation of representative terrestrial and coastal marine DOC. These data are described further in the related publication, Sutherland et al., 2022 (doi: 10.1093/pnasnexus/pgac233).

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
d18O_smowslap (permil)
d17O_smowslap (permil)
d18O_smowslap_log (unitless)
d17O_smowslap_log (unitless)
D17O (permil)
O2_Ar (unitless)
lnO2_Ar (unitless)


[tucker and bongo net metadata - CGoA] - Metadata for tucker trawls and bongo net hauls from F/V Great Pacific and R/V Miller Freeman multiple cruises in the Coastal Gulf of Alaska, NE Pacific, 2001-2004 (NEP project) (U.S. GLOBEC Northeast Pacific)

Summary:
Metadata for tucker trawls and bongo net hauls from F/V Great Pacific and R/V Miller Freeman multiple cruises in the Coastal Gulf of Alaska, NE Pacific, 2001-2004.

cdm_data_type = Other
VARIABLES:
year (dimensionless)
cruiseid (unitless)
transect_name (dimensionless)
station (dimensionless)
habitat (dimensionless)
yrday_local (dimensionless)
month_local (dimensionless)
day_local (dimensionless)
haul_id (dimensionless)
time_local_start (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
distance_start (nautical miles)
depth (m)
lat_end (Latitude, decimal degrees)
lon_end (Longitude, decimal degrees)
distance_end (nautical miles)
depth_end (Depth, meters)
temp_end (degrees Celsius)
sea_state (dimensionless)
sky_condition (dimensionless)
wind_speed (knots)
tucker_flag (dimensionless)
bongo_flag (dimensionless)
ctd_flag (dimensionless)
comments (dimensionless)


[tucker catch - CGoA LTOP] - Zooplankton catch data from Tucker trawls from CGOA LTOP cruises from the Coastal Gulf of Alaska, Northeast Pacific, 2001-2003 (NEP project) (U.S. GLOBEC Northeast Pacific)

Summary:
Zooplankton catch data from Tucker trawls from CGOA LTOP cruises from the Coastal Gulf of Alaska, Northeast Pacific, 2001-2003.

cdm_data_type = Other
VARIABLES:
year (unitless)
haul_id (unitless)
yrday_local (dimensionless)
month_local (unitless)
day_local (unitless)
time_local_start (unitless)
latitude (degrees_north)
longitude (degrees_east)
lat_end (Latitude, decimal degrees)
lon_end (Longitude, decimal degrees)
station (text)
depth (m)
duration (seconds)
habitat (text)
vol_settled (milliliters)
disp_vol (milliliters)
taxon (text)
cruiseid (unitless)
sex (text)
count_aliq (dimensionless)
aliquot (dimensionless)
count_total (dimensionless)
comments_catch (text)
comments_tow (text)


[Tuna isotopes and biometrics] - Biometrics, identifications, and isotopic values of larval fish and isotopic values of zooplankton from samples collected on R/V Roger Revelle cruise RR2201 (BLOOFINZ-IO) in Argo Basin region off Northwest Australia from January to March 2022 (Collaborative Research: Mesoscale variability in nitrogen sources and food-web dynamics supporting larval southern bluefin tuna in the eastern Indian Ocean)

Summary:
This dataset contains larval fish biometrics, larval identifications, and isotopic values. Zooplankton data and corresponding isotopic values are also included. Data are from samples collected on cruise RR2201 of R/V Roger Revelle (BLOOFINZ-IO, January-March 2022) in the Argo Basin region off Northwest Australia.

cdm_data_type = Other
VARIABLES:
Cycle (unitless)
latitude (degrees_north)
longitude (degrees_east)
Cast (unitless)
Station (unitless)
time (Date_cast, seconds since 1970-01-01T00:00:00Z)
Preservative (unitless)
Identifier (unitless)
Species (unitless)
Stage (unitless)
Length (millimeters (mm))
Width (millimeters (mm))
Dry_Weight (milligrams (mg))
Age (number of days)
N_pcnt (percent (%))
C_pcnt (percent (%))
d15N (per mil (‰))
d13C (per mil (‰))
MICRO_BIOMASS (milligrams per cubic meter (mg m3))
MICRO_N (percent N)
MICRO_C (percent C)
MICRO_d15N (per mil (‰))
MICRO_d13C (per mil (‰))
MESO_BIOMASS (milligrams per cubic meter (mg m3))
... (4 more variables)


[Turbulence microstructure profiles] - Turbulence microstructure profiles collected during R/V Hugh R. Sharp cruise HRS2204 from Apr to May 2022 (Collaborative Research: The importance of particle disaggregation on biogeochemical flux predictions)

Summary:
These data include profiles of turbulence dissipation rate obtained from a Rockland Scientific VMP-250 deployed during a cruise on the Northeast Continental Shelf to study particle disaggregation. One cruise was completed aboard the R/V Hugh R. Sharp from 2022-04-21 through 2022-05-02 (HRS22-04), which visited a variety of stations and hydrodynamic environments associated with the Northeast Continental Shelf of the United States. Cruise stations where dissipation rate profiles were obtained ranged from Georges Bank and the Great South Channel near the Gulf of Maine, and Hudson Canyon near New York. These data were collected as part of a study to clarify the importance of hydrodynamic forces on the cohesion, aggregation, and breakup of marine particles. These data were collected by Dr. Matthew Rau (chief-sci) of the George Washington University.

cdm_data_type = Other
VARIABLES:
Deployment_ID (unitless)
Station (unitless)
Station_Deployment (unitless)
Station_Deployment_Profile (unitless)
Cruise_Deployment (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
t_rel (seconds)
p (dbar)
T (degrees Celsius)
e (watts per kilogram (W/kg))


[UCYN-A Host activity] - Experimental data testing the N2 and CO2 fixing activity of the UCYN-A/haptophyte symbiosis in nitrate and ammonium rich waters in the California Current from May to October 2017 (Collaborative Research: Biogeochemical significance of the abundant, uncultivated symbiotic cyanobacteria UCYN-A)

Summary:
Experimental data testing the N2 and CO2 fixing activity of the UCYN-A/haptophyte symbiosis in nitrate and ammonium rich waters in the California Current from May to October 2017.

cdm_data_type = Other
VARIABLES:
Experiment (unitless)
Cruise (unitless)
Date (unitless)
lat (degrees_north)
longitude (degrees_east)
Treatment (unitless)
n (count)
iso_sub (unitless)
bulk_fix_uptake_rate_bulk_avg (micromole Nitrogen per meter cubed per day (umol N/m3/d))
bulk_fix_uptake_rate_bulk_sd (micromole Nitrogen per meter cubed per day (umol N/m3/d))
C_fix_rate_bulk_avg (millimole Carbon per meter cubed per day (mmolC/m3/d))
C_fix_rate_bulk_sd (millimole Carbon per meter cubed per day (mmolC/m3/d))
LOD_bulk (umol N/m3/d or mmolC/m3/d depending on column it references)
MQR_bulk (umol N/m3/d or mmolC/m3/d depending on column it references)
sheet (unitless)
chl_a_n (count)
chla_avg (micrograms per liter (ug/L))
chla_sd (micrograms per liter (ug/L))
PON_n (count)
PON_avg (micromole per liter (umol/L))
PON_sd (micromole per liter (umol/L))
POC_n (count)
POC_avg (micromole per liter (umol/L))
POC_sd (micromole per liter (umol/L))
Sublineage (unitless)
sub_enrich_atom_pcnt (percent)
... (10 more variables)


[Ultrahigh Resolution Mass Spectrometry of a Depth Profile] - Ultrahigh resolution Mass Spectrometry data from a depth profile collected at 200 m depth intervals at the Bermuda Atlantic Time Series Station (BATS) in August 2019 and at the Hawaii Ocean Time Series station (HOTS) Aloha in July 2021 (The fate of lysis products of picocyanobacteria contributes to marine humic-like chromophoric dissolved organic matter)

Summary:
This data set contains ultrahigh resolution mass spectrometric data collected at BATS and HOTS at 200 m depth intervals in August 2019, and July 2021, respectively.

cdm_data_type = Other
VARIABLES:
Station_Location (unitless)
latitude (degrees_north)
longitude (degrees_east)
Date (unitless)
Replicate (unitless)
Depth (meters (m))
Mass (unitless)
Intensity (unitless)


[Ulva: Carbonate chemistry pCO2] - Carbonate chemistry of Ulva lactuca culture pots testing the effects of pCO2 variability (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset reports the carbonate chemistry along with temperature, salinity and pH of Ulva lactuca grown in closed culture pots at varying pCO2 levels.

cdm_data_type = Other
VARIABLES:
Culture_Pot_ID (unitless)
Exp_Trial (unitless)
Date (unitless)
days_diff (days)
pCO2weights (P CO2weights, microatmosphere days (µatm.days))
wt_avg_pCO2 (Wt Avg P CO2, microatmospheres (µatm))
wt_sd_pCO2 (Wt Sd P CO2, microatmospheres (µatm))
Sal_in (parts per thousand (ppt))
Temp_in (degrees Celsius)
pH25 (P H25, unitless)
pHin (P Hin, unitless)
CO2 (micromoles/kilogram)
pCO2 (P CO2, microatmospheres (µatm))
fCO2 (F CO2, microatmospheres (µatm))
HCO3 (micromoles/kilogram)
CO3 (micromoles/kilogram)
DIC (micromoles/kilogram)
ALK (micromoles/kilogram)
OmegaAragonite (Omega Aragonite, unitless)
OmegaCalcite (Omega Calcite, unitless)


[Ulva: Chl a] - Chlorophyll a per unit biomass in Ulva lactuca under ocean acidification (OA) conditions (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset reports the chlorophyll a concentration per unit biomass of Ulva lactuca grown in closed culture pots at varying pCO2 levels.

cdm_data_type = Other
VARIABLES:
Label (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
Fresh_Wt (grams)
DMSO_A665 (unitless)
Methanol_A668 (unitless)
Methanol_A635 (unitless)
DMSO_ext (milligram/liter (mg/L))
Meth_ext (milligram/liter (mg/L))
Total_chl_mg (milligrams (mg))
chl_a (Concentration Of Chlorophyll In Sea Water, milligrams/gram (mg/g))


[Ulva: CHN and stable isotopes] - Stable isotope ratios and mass of carbon and nitrogen in Ulva cells under ocean acidification conditions (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset includes carbon and nitrogen content and stable isotope values from Ulva lactuca tissue grown at 15\u00b0 C and various CO2 levels, from May 2015 through July 2015.

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
d13C (D13 C, parts per thousand (ppt))
C_mass_sample (micrograms)
d15N (D15 N, parts per thousand (ppt))
N_mass_sample (micrograms)
C_N (unitless)
mass_plant (milligrams)


[Ulva: Growth] - Growth rates of Ulva exposed to different average and variability of pCO2 (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset includes growth rates of Ulva measured at three weekly intervals as well as integrated over the experimental trial grown in culture under various pCO2 levels from May through July 2015.

cdm_data_type = Other
VARIABLES:
Label (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
GP1i (grams)
GP1f (grams)
GP2i (grams)
GP2f (grams)
GP3i (grams)
GP3f (grams)
RGR_GP1 (%/day)
RGR_GP2 (%/day)
RGR_GP3 (%/day)
RGR_GP1to3_Net (%/day)
added_mass (grams)
RGR_GP1to3_Abs (grams)
Total_mass (grams)


[Ulva: pH and temperature time-series] - Time-series at 10 minute sampling interval of pH and temperature in Ulva culture pots (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset includes time-series at 10-minute sampling interval of pH and temperature in each Ulva lactuca culture pot grown at 15\u00b0 C and various CO2 levels during trials 3 and 4 (May 30 through July 2015). Data for trial 2 were lost.

cdm_data_type = Other
VARIABLES:
date (unitless)
time2 (Time, unitless)
ISO_DateTime_Local (ISO Date Time Local, unitless)
pH_S1P1 (P H S1 P1, unitless)
T_S1P1 (T S1 P1, degrees Celsius)
pH_S1P2 (P H S1 P2, unitless)
T_S1P2 (T S1 P2, degrees Celsius)
pH_S2P3 (P H S2 P3, unitless)
T_S2P3 (T S2 P3, degrees Celsius)
pH_S2P4 (P H S2 P4, unitless)
T_S2P4 (T S2 P4, degrees Celsius)
pH_S2P5 (P H S2 P5, unitless)
T_S2P5 (T S2 P5, degrees Celsius)
pH_S2P6 (P H S2 P6, unitless)
T_S2P6 (T S2 P6, degrees Celsius)
pH_S3P7 (P H S3 P7, unitless)
T_S3P7 (T S3 P7, degrees Celsius)
pH_S3P8 (P H S3 P8, unitless)
T_S3P8 (T S3 P8, degrees Celsius)
pH_S3P9 (P H S3 P9, unitless)
T_S3P9 (T S3 P9, degrees Celsius)
pH_3P10 (P H 3 P10, unitless)
T_S3P10 (T S3 P10, degrees Celsius)


[Ulva: pH Drift] - Carbonate chemistry over a time course with Ulva in pH drift experiments (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
Carbonate chemistry measurements over a time course with Ulva in pH drift experiments.

cdm_data_type = Other
VARIABLES:
Label (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
Sal_in (parts per thousand (ppt))
Temp_in (degrees Celsius)
ALK (micromoles/kilogram)
pH_t0 (P H T0, unitless)
pH_t24 (P H T24, unitless)
DIC_t0 (micromoles/kilogram (µmol/kg))
DIC_t24 (micromoles/kilogram (µmol/kg))
CO2_t0 (micromoles/kilogram (µmol/kg))
CO2_t24 (micromoles/kilogram (µmol/kg))
HCO3_t0 (micromoles/kilogram (µmol/kg))
HCO3_t24 (micromoles/kilogram (µmol/kg))
CO3_t0 (micromoles/kilogram (µmol/kg))
CO3_t24 (micromoles/kilogram (µmol/kg))


[Ulva: Photosynthesis and respiration] - Rates of photosynthesis and respiration by Ulva exposed to different average and variability of pCO2 (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset includes rates of photosynthesis and respiration by Ulva during culture experiments grown at 15 degrees C under various pCO2 levels, during May through July 2015.

cdm_data_type = Other
VARIABLES:
Label (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
Off1C (Off1 C, milligrams O2/liter/second (mg L-1 s-1))
OnC (On C, milligrams O2/liter/second (mg L-1 s-1))
Off2C (Off2 C, milligrams O2/liter/second (mg L-1 s-1))
Off1A (Off1 A, milligrams O2/liter/second (mg L-1 s-1))
OnA (On A, milligrams O2/liter/second (mg L-1 s-1))
Off2A (Off2 A, milligrams O2/liter/second (mg L-1 s-1))
Fresh_Weight (grams)
DRespC (DResp C, mol O2/g/min  NA)
PmaxC (Pmax C, mol O2/g/min  NA)
LRespC (LResp C, mol O2/g/min  NA)
DRespA (DResp A, mol O2/g/min  NA)
PmaxA (Pmax A, mol O2/g/min  NA)
LRespA (LResp A, mol O2/g/min  NA)


[Ulva: seawater delta13C] - Stable isotope ratio and concentration of carbon in seawater from Ulva OA experiments (Seaweed OA Resilience project) (Ocean Acidification: Scope for Resilience to Ocean Acidification in Macroalgae)

Summary:
This dataset includes stable isotope ratio and concentration of carbon in seawater during Ulva culture experiments grown at 15C temperatures under various CO2 levels, during May through July 2015.

cdm_data_type = Other
VARIABLES:
Sample (unitless)
pCO2_avg (P CO2 Avg, microatmospheres (µatm))
pCO2_sd (P CO2 Sd, microatmospheres (µatm))
d13CVPDB (D13 CVPDB, parts per thousand (ppt))


[underway Cesium Isotopes] - Hydrocast isotope concentrations of Cesium 137 and 134 from the R/V Ka`imikai-O-Kanaloa KOK1108 cruise in June 2011 in the Northwest Pacific Ocean (Fukushima Radionuclide Levels project) (Establishing Radionuclide Levels in the Atlantic and Pacific Oceans Originating from the Fukushima Daiichi Nuclear Power Facility)

Summary:
Hydrocast isotope concentrations of Cesium 137 and 134 from the R/V Ka`imikai-O-Kanaloa KOK1108 cruise in June 2011 in the Northwest Pacific Ocean.

cdm_data_type = Other
VARIABLES:
sta (dimensionless)
date (unitless)
time2 (Time, hhmm)
date_local (yymmdd)
time_local (hhmm)
latitude (degrees_north)
longitude (degrees_east)
event (dimensionless)
depth_n (Depth, meters)
Cs137 (Bq/meter^3)
err_Cs137 (Bq/meter^3)
Cs134 (Bq/meter^3)
err_Cs134 (Bq/meter^3)
Cs134_Cs137 (Bq/meter^3)
err_Cs134_Cs137 (Bq/meter^3)


[Underway Chl] - Particulate chlorophyll data set from samples collected using ship’s surface underway system taken on board of the R/V Oceanus OC1701A, OC1611B, OC1603B, OC1602A, OC1601A in the Oregon Coast (47-43 N, 126-124 W) from 2016 to 2017 (Coastal Ocean Carbon Cycling during Wintertime Conditions)

Summary:
Particulate chlorophyll data set and added temperature and salinity from samples collected using ship\u2019s surface underway system taken on board of the R/V Oceanus OC1701A, OC1611B, OC1603B, OC1602A, OC1601A in the Oregon Coast (47-43 N, 126-124 W) from 2016 to 2017.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
latitude (degrees_north)
longitude (degrees_east)
Date_Time_PST (unitless)
Temperature (degrees Celsius (°C))
Salinity (Sea Water Practical Salinity, unitless)
Chlorophyll (Concentration Of Chlorophyll In Sea Water, miligrams of Chl per cubic meter of water (mg/m3))
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[underway chloro] - Underway chlorophyll data from RVIB Nathaniel B. Palmer and ARSV Laurence M. Gould cruises NBP0104, LMG0203, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project) (U.S. GLOBEC Southern Ocean)

Summary:
Underway chlorophyll data from RVIB Nathaniel B. Palmer and ARSV Laurence M. Gould cruises NBP0104, LMG0203, and NBP0204 in the Southern Ocean from 2001-2002 (SOGLOBEC project)

cdm_data_type = Other
VARIABLES:
cruiseid
year
yrday_local (YYY)
latitude (degrees_north)
longitude (degrees_east)
chl_a (Concentration Of Chlorophyll In Sea Water, micrograms/liter)
phaeo (micrograms/liter)


[Underway Data] - Underway data from estuary transects in Coastal Gulf of Maine (Pleasant, Maine; St. John, New Brunswick) in May and October of 2018 and 2019 (Collaborative Research: Organic Alkalinity: Impacts of the [OTHER] Alkalinity on Estuary and Coastal Ocean Chemistry)

Summary:
This dataset contains underway data from four organic alkalinity estuary transects, in May and October of 2018 and 2019, completed in the Pleasant (Maine, USA) and St. John (New Brunswick, Canada) estuaries. See "Related Datasets" section for alkalinity data.  Discrete samples were collected at intervals of salinity along each estuary.  An underway measurements system was also operated during each transect.  Discrete samples were analyzed via a number of methods described below.  Underway measurements were collected using the procedures described in Hunt et al. (2013).

Organic alkalinity is a poorly understood component of the estuarine and coastal ocean acid-base system.  This lack of understanding makes assessment of ocean acidification vulnerability and inorganic carbon dynamics more difficult.  However, the methods used to quantify organic alkalinity and its effects on the acid-base system are not standardized.  In this work we examined several approaches for the measurement of organic alkalinity, and their application to inorganic carbon dynamics.

cdm_data_type = Other
VARIABLES:
year (unitless)
month (unitless)
day (unitless)
hour (unitless)
minute (unitless)
second (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Julian_Day (unitless)
secDay (sssss)
lat (degrees_north)
longitude (degrees_east)
heading (degrees)
speed (meters per second (m/s))
Wt (degreesC)
cond (millimho per centimeter (mmho/cm))
... (13 more variables)


[Underway pCO2] - Underway pCO2 from the R/V Pelican cruise GOM_UW_1704 conducted in the Northern Gulf of Mexico in April 2017. (Collaborative Research: pH Dynamics and Interactive Effects of Multiple Processes in a River-Dominated Eutrophic Coastal Ocean)

Summary:
Underway pCO2 from R/V Pelican cruise conducted in the northern Gulf of Mexico (27.5 N, 30 N, 88 W, 94 W) from April 5th to 16th in 2017. The precision of pCO2 is \u00b12 \u00b5atm.

cdm_data_type = Other
VARIABLES:
Region (unitless)
Cruise (unitless)
time (GPS Date Time UTC, seconds since 1970-01-01T00:00:00Z)
longitude (degrees_east)
latitude (degrees_north)
Temperature (degrees Celsius (°C))
Salinity (Sea Water Practical Salinity, PSU)
pCO2 (P CO2, microatmosphere (uatm))
Flag_pCO2 (Flag P CO2, unitless)


[Underway POM] - Particulate organic matter data set from samples collected using ship’s surface underway system taken on board of the R/V Oceanus OC1701A, OC1611B, OC1603B, OC1602A, OC1601A in the Oregon Coast (47-43 N, 126-124 W) from 2016 to 2017. (Coastal Ocean Carbon Cycling during Wintertime Conditions)

Summary:
Particulate organic matter data set and added temperature and salinity from samples collected using ship\u2019s surface underway system taken on board of the R/V Oceanus OC1701A, OC1611B, OC1603B, OC1602A, OC1601A in the Oregon Coast (47-43 N, 126-124 W) from 2016 to 2017.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
latitude (degrees_north)
longitude (degrees_east)
Date_Time_PST (unitless)
Temperature (degrees Celsius (°C))
Salinity (Sea Water Practical Salinity, unitless)
PN (micromoles N per liter of water (um/L))
POC (Particulate Organic Carbon, micromoles C per liter of water (um/L))
Beam_attenuation (1/m)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[underway_met] - Underway MET data collected on multiple GLOBEC Long Term Observation Program (LTOP) cruises aboard R/V Wecoma in the Northeast Pacific from 1999-2003 (U.S. GLOBEC Northeast Pacific)

Summary:
Underway MET data collected on GLOBEC Long Term Observation Program (LTOP) cruises (1998-2004) aboard R/V Wecoma. Data are preliminary. No error-checking or in-situ calibrations (except for salinity) have been performed.

cdm_data_type = Other
VARIABLES:
cruiseid (dimensionless)
ship (dimensionless)
year (dimensionless)
yrday (yearday, 1-365)
month_gmt (month, 1-12)
day_gmt (day, 1-31)
time_gmt (HHMM)
latitude (degrees_north)
longitude (degrees_east)
temp_ss5 (degreesC)
temp_ss (degrees C)
cond_ss5 (siemens/meter)
sal_ss5 (PSU)
flvolt_mV (Flvolt M V, milliVolts)
depth_w_12 (Depth, meters)
press_bar (millibars)
temp_air (degrees C)
temp_air2 (degrees C)
humidity (percent)
radiation_s (watts/m^2)
radiation_l (watts/m^2)
PAR_doghouse (quanta/(cm^2*s))
temp_pir_case (degrees C)
temp_pir_hemi (degrees C)
gyro (degrees from true North)
... (10 more variables)


[Urchin and Abalone Density Responses to Pycnopodia Cages] - Urchin and abalone density responses to caged Pycnopodia field experiment in Sitka Sound urchin barrens, February 2023 from from February 2023 (High latitude kelp dynamics project) (CAREER: Energy fluxes and community stability in a dynamic, high-latitude kelp ecosystem)

Summary:
We conducted a field experiment in three replicate sea urchin barrens in Sitka Sound, AK (57°2'1"N 135°15'51"W) in February of 2023, where we deployed kelp blades at discrete distances on four meter radial cables from caged adult P. helianthoides and control cages for 24 hours. Via SCUBA we performed quadrat density surveys of three important kelp forest grazers (Haliotis kamtschatkana, Strongylocentrotus droebachiensis, and Mesocentrotus franciscanus) at discrete distances from the cage before, 15-30 min after, and 24 hours after P. helianthoides were added to the treatment cages.

cdm_data_type = Other
VARIABLES:
QuadID (unitless)
RayID (unitless)
Site (unitless)
latitude (degrees_north)
longitude (Long, degrees_east)
Treatment (unitless)
Replicate (unitless)
TreatRep (unitless)
Ray (unitless)
Date (unitless)
Diver (unitless)
Survey (unitless)
HoursElapsed (hours)
depth_f (Depth_ft, feet (ft))
depth (Depth_m, m)
Quad (unitless)
Dist_m (meters (m))
Species (unitless)
Count (individual)
Density_m2 (meters squared (m2))
Notes (unitless)


[UW FHL Temperature & Salinity] - UW FHL Temperature & Salinity data taken at Friday Harbor, WA between between January 1, 2010 and January 1, 2016 (Effects of Ocean Acidification on Coastal Organisms: An Ecomaterials Perspective)

Summary:
Hourly seawater temperature and salinity values taken by an SBE 37 MicroCAT at UW FHL (University of Washington, Friday Harbor Laboratories) in Friday Harbor between January 1, 2010 and January 1, 2016.

cdm_data_type = Other
VARIABLES:
Date (unitless)
Temperature (degrees Celcius (C))
Salinity (Sea Water Practical Salinity, PSU)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)


[VAHINE nitrogen] - Dissolved and sinking particulate organic nitrogen data from a large volume mesocosm experiment in the Noumea Lagoon, New Caledonia, measured from January to February 2013 (Quantifying nitrogen fixation along unique geochemical gradients in the southwest Pacific Ocean)

Summary:
This dataset includes water column dissolved organic nitrogen (DON) concentration and d15N data, as well as sinking particulate nitrogen d15N (\u201cPNsink d15N\u201d) data. These samples were collected inside triplicate (\u201cM1\u201d, \u201cM2\u201d, and \u201cM3\u201d) large volume (i.e., 2.3 m diameter, 15 m deep) mesocosm experiments deployed in a lagoon off of Noumea, New Caledonia. DON samples were collected at 6 m depth daily by a Teflon pump and PVC tubing. PNsink d15N samples were collected daily by SCUBA divers who removed a screw-top plastic bottle from the bottom of the plastic mesocosm. \u201cSwimmers\u201d were removed from the PNsink d15N samples prior to analysis.\r\n\r\nThese measurements were made as part of project \VAriability of vertical and tropHIc transfer of diazotroph derived N in the south wEst Pacific\ (VAHINE) to study the fate of fixed nitrogen in the oceanic pelagic food web and its potential impact on carbon export. The field campaign of VAHINE took place in the South West Pacific (New Caledonia) in January and February of 2013 and involved 16 scientists from France, Israel, Germany and the USA.

cdm_data_type = Other
VARIABLES:
Sampling_Date (unitless)
M1_DON (micromolar (uM))
M1_DONd15N (M1 DONd15 N, per mil (0/00))
M2_DON (micromolar (uM))
M2_DONd15N (M2 DONd15 N, per mil (0/00))
M3_DON (micromolar (uM))
M3_DONd15N (M3 DONd15 N, per mil (0/00))
M1_d15NPNsink (M1 D15 NPNsink, per mil (0/00))
M2_d15NPNsink (M2 D15 NPNsink, per mil (0/00))
M3_d15NPNsink (M3 D15 NPNsink, per mil (0/00))


[vbs] - Volume backscatter acoustics data collected on R/V Albatross IV cruises AL9205 and AL9607 in the Gulf of Maine and Georges Bank in 1992 and 1996 (GB project) (U.S. GLOBEC Georges Bank)

Summary:
Volume backscatter acoustics data collected on R/V Albatross IV cruises AL9205 and AL9607 in the Gulf of Maine and Georges Bank in 1992 and 1996 (GB project)

cdm_data_type = Other
VARIABLES:
cruiseid
year
track_line
yrday_utc (dec. yearday)
latitude (degrees_north)
longitude (degrees_east)
depth_bin_2 (Depth, meters)
transducer (meters)
vbs_coef (meter**-1)


[vent chemical composition-Crab Spa] - Chemical composition of diffuse flow vent fluids collected from the Crab Spa site at East Pacific Rise during the AT26-10 oceanographic expedition, Jan. 2014 (Microbial Communities at Deep-Sea Vents project) (An Integrated Study of Energy Metabolism, Carbon Fixation, and Colonization Mechanisms in Chemosynthetic Microbial Communities at Deep-Sea Vents)

Summary:
This dataset includes\u00a0chemical composition (Cl, SO4, Na, K, Mg, and Ca
concentrations) of diffuse flow vent fluids collected from the Crab Spa
(9.8398\u00ba N, 104.2913\u00ba W) site at East Pacific Rise during the
RV/Atlantic AT26-10 oceanographic expedition, Jan. 2014.

cdm_data_type = Other
VARIABLES:
date (unitless)
site (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
sample (unitless)
Cl (mmoles/kg)
Cl_stdev (mmoles/kg)
SO4 (mmoles/kg)
SO4_stdev (mmoles/kg)
Na (mmoles/kg)
K (mmoles/kg)
Mg (mmoles/kg)
Ca (mmoles/kg)


[Vertebrate home range and body size] - Home range and body size data compiled from the literature for marine and terrestrial vertebrates (Adaptations of fish and fishing communities to rapid climate change)

Summary:
Home range and body size data compiled from the literature for marine and terrestrial vertebrates.

cdm_data_type = Other
VARIABLES:
System (unitless)
Group (unitless)
Species (unitless)
BM (grams (g))
HR (square kilometers (km^2))
Refs (unitless)


[Vertical Plankton Tow - VPT] - Vertical Plankton Tow (VPT) data from 1997 - 2003 from multiple cruises from the Northeast Pacific, California Current System (NEP project) (U.S. GLOBEC Northeast Pacific)

Summary:
Vertical Plankton Tow (VPT) data from 1997 - 2003 from multiple cruises from the Northeast Pacific, California Current System

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
year (dimensionless)
program (dimensionless)
cast (dimensionless)
station (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
depth_w (Depth, meters)
sample_id (dimensionless)
min_sample_depth (meters)
depth (Max Sample Depth, m)
month_local (dimensionless)
day_local (dimensionless)
time_local (dimensionless)
d_n_flag (dimensionless)
gear_type (dimensionless)
gear_area_m2 (m^2)
gear_mesh (mm)
vol_filt (meters^3)
counter_id (dimensionless)
comments (dimensionless)
perc_counted (0-100%)
nodc_code (dimensionless)
species (dimensionless)
life_stage (dimensionless)
abund (individuals per meter^3)


[Vertical profiles] - Vertical profiles and attenuation coefficients during intense blooms in the Lower York River Estuary between August 2021 and September 2022 (Alteration of carbon fluxes by intense phytoplankton blooms in a microtidal estuary)

Summary:
The dinoflagellates Margalefidinium polykrikoides and Alexandrium monilatum form intense summer blooms in the lower York River Estuary (LYRE), typically from late July through mid-September.  While surface concentrations of chlorophyll-a during these blooms are well-documented, we lack information on the vertical distribution of biomass in bloom patches.  Both species are known to vertically migrate and accumulate near the surface at midday.  We also lack direct measurements of light attenuation through intense bloom patches for comparison to attenuation through the background phytoplankton assemblage.  We conducted vertical profiles of water column structure, phytoplankton chlorophyll-a, and irradiance on five dates during these intense summer blooms in the LYRE.  Ten to twelve stations were occupied on each date spanning a wide range of bloom densities, including background stations outside of bloom patches.  Profiles were used to determine the vertical distribution of bloom biomass, while irradiance measurements were used to compute the vertical attenuation coefficient as a function of bloom chlorophyll-a biomass, determined from laboratory extraction of surface samples.

cdm_data_type = Other
VARIABLES:
Date (unitless)
time_unitless (Time, unitless)
Station (unitless)
latitude (degrees_north)
longitude (Long, degrees_east)
depth (m)
Temp (degrees Celsius(°C))
Salinity (unitless)
Chla_YSI (ug/l)
Turbidity (FNU)
Avg_Uncorr_Chla (ug/l)
SE_Uncorr_Chla (ug/l)
Avg_Active_Chla (ug/l)
SE_Active_Chla (ug/l)
Avg_Phaeo (ug/l)
SE_Phaeo (ug/l)
kD (1/m)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[viable cell counts] - Viable cell counts on the bacteria in the seawater collected in the Niskin bottles during Leggo drops 1 and 3 on R/V Falkor cruise FK141215 in the Challenger Deep, Mariana Trench in December 2014 (Patterns of Microbial Community Structure Within and Between Hadal Environments)

Summary:
Viable cell counts on the bacteria in the seawater collected in the Niskin bottles during Leggo drops 1 and 3.

cdm_data_type = Other
VARIABLES:
drop_name (unitless)
time (ISO Date Time Deploy, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_recover (ISO Date Time Recover, unitless)
latitude (degrees_north)
longitude (degrees_east)
dilution (unitless)
colonies_plate_1 (count)
colonies_plate_2 (count)
avg_CFUs_per_mL (Avg CFUs Per M L, CFU/mL)


[Video transects (Wood Fall project)] - Video transects (Wood Fall project) (The energetic assembly of biological communities: a test with deep-sea woodfalls)

Summary:
Video transects (Wood Fall project)

cdm_data_type = Other
VARIABLES:
transect_number (unitless)
date (unitless)
rov_dive (dimensionless)
start_time (hh:mm)
end_time (hh:mm)
latitude (degrees_north)
end_latitude (Latitude, decimal degrees)
longitude (degrees_east)
end_longitude (Longitude, decimal degrees)
heading (degrees)
start_depth (meters)
depth (End Depth, m)


[Virus production at a hydrothermal vent site] - Virus and prokaryote abundances from experiments conducted with samples collected at a hydrothermal vent site by ROV SuBastian during R/V Falkor (too) expedition FKt230627 along the East Pacific Rise in July of 2023 (The Underworld of Hydrothermal Vents)

Summary:
We used the virus-dilution technique to quantify lytic virus production at nine sites across vent, sub-vent, and non-vent habitats along the East Pacific Rise during expedition FKt230627 aboard R/V Falkor(too). This technique leverages the density-dependent nature of viral infection, preventing new infections by dilution. Samples were collected via ROV SuBastian, sequentially filtered to remove larger particles, and concentrated using tangential-flow filtration. Duplicate incubations were set up with prokaryotic concentrate and virus-free water, pressurized to 250 bar, and incubated in the dark at in situ temperatures for 30 hours. Subsamples were taken every six hours for enumeration of prokaryotes and viruses via flow cytometry. Parallel experiments were conducted at surface pressure to assess the impact of pressure on virus production rates. The methodology ensures observed increases in viral abundance are due to pre-existing infections. The experiments were conducted aboard R/V Falkor(too) between 5-22 July 2023 by Tinkara Tinta and Nicole Krause. Prokaryotes and viruses were enumerated flow-cytometrically back in the lab by Christian Winter.

cdm_data_type = Other
VARIABLES:
dive (unitlesss)
sample_id (unitlesss)
subsample_id (unitlesss)
habitat (unitlesss)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
temperature (degrees Celsius (degC))
incubated_at_250bar (unitless)
date_local (unitless)
time_local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
prokaryotes (Nx10^4 mL^-1)
viruses (Nx10^4 mL^-1)


[Visual Bleaching Scores Summer 2018] - Results of the quantification of symbiont cell numbers from 400 Acropora hyacinthus colonies subjected to experimental bleaching in the summer of 2018 in Palau. (Predicting the global location of heat tolerant corals: Palau patch reefs as a general model)

Summary:
Results of the quantification of symbiont cell numbers from 400 Acropora hyacinthus colonies subjected to experimental bleaching in the summer of 2018 in Palau.

cdm_data_type = Other
VARIABLES:
Tank_Number (dimensionless)
Cycle_Number (dimensionless)
Date_Collected (unitless)
Reef (dimensionless)
Temperature (degrees Celsius)
Colony_Number (dimensionless)
Day (dimensionless)
Score (text)
Scorer_1 (unitless)
Scorer_2 (unitless)
Scorer_3 (unitless)


[Visual monitoring of A. cervicornis] - Bleaching, disease, and mortality on A. cervicornis individuals in Elliot Key, Florida during 2014 and 2015 (EMUCoReS project) (RAPID: A hyper-thermal anomaly in the Florida Reef Tract: An opportunity to explore the mechanisms underpinning patterns of coral bleaching and disease)

Summary:
Bleaching, disease, and mortality on A. cervicornis individuals in Elliot Key, Florida during 2014 and 2015 (EMUCoReS project)

cdm_data_type = Other
VARIABLES:
month_sampled (unitless)
genet (unitless)
condition (unitless)
sample_number (unitless)
A3_S_fitti (percent)
B2_S_psygmophilium (percent)
D1a_S_trenchii (percent)


[VPR AR29] - Video Plankton Recorder environmental sensor data from the first cruise of SPIROPA project aboard the R/V Neil Armstrong to the New England Shelfbreak in April, 2018 (Collaborative Research:  Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications)

Summary:
Video Plankton Recorder environmental sensor data from the first cruise of SPIROPA project in April 2018.

cdm_data_type = Other
VARIABLES:
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
longitude (degrees_east)
latitude (degrees_north)
depth (m)
vprtimestep (unitless)
gmt (unitless)
date (unitless)
latitude_ (Latitude, degrees decimal minutes)
longitude_ (Longitude, degrees decimal minutes)
maxdepth (meters (m))
alt (meters (m))
roll (degrees)
pitch (degrees)
fluor (volts (V))
turb (micrograms per liter (ug/L))
par (Downwelling Photosynthetic Photon Radiance In Sea Water, microEinsteins/m^2/second (uE/m2/s))
oxy (volts (V))
sal (unitless)
temp (Temperature, degrees Celsius (C))


[VPR_ashjian_orig] - Video Plankton Recorder data from R/V Columbus Iselin, R/V Endeavor cruises CI9407, EN259, and EN262 in the Gulf of Maine and Georges Bank from 1994-1995 (GB project) (U.S. GLOBEC Georges Bank)

Summary:
Video Plankton Recorder data from R/V Columbus Iselin, R/V Endeavor cruises CI9407, EN259, and EN262 in the Gulf of Maine and Georges Bank from 1994-1995

cdm_data_type = Other
VARIABLES:
cruiseid
year
brief_desc (dimensionless)
yrday0_gmt (YYY.Y)
month_gmt
day_gmt
time_gmt (HHmm.m)
latitude (degrees_north)
longitude (degrees_east)
press (decibars)
temp (Temperature, degrees centigrade)
sal (PSU)
sigma_t (kilograms/meter^3)
flvolt (volts)
fluor (relative units)
trans_v (volts)
dist_along_track (kilometers)
Hydroids (number/liter; close to presence or absence)
Other (number/liter; close to presence or absence)
Cerianthid (number/liter; close to presence or absence)
Calanus (number/liter; close to presence or absence)
Earlyphaeoproto (number/liter; close to presence or absence)
Phaeoproto (number/liter; close to presence or absence)
Marinesnow (number/liter; close to presence or absence)
Pteropod (number/liter; close to presence or absence)
Chaetognath (number/liter; close to presence or absence)
... (21 more variables)


[Vulnerability of coral reefs to bioerosion] - Vulnerability of coral reefs to bioerosion from land-based sources of pollution using parameters quantified by computerized tomography. (Collaborative Research: Identifying the Role of Basin-scale Climate Variability in the Decline of Atlantic Corals)

Summary:
Coral Growth Parameters Quantified by Computerized Tomography (CT) for Growth Rate (cm/yr), Density (g/cm3), and Calcification Rates (g/cm2/yr), Percent Volume Erosion (%), Measured Bioerosion Rate (mg/ cm2/ yr), Predicted Bioerosion Rate (mg/cm2/ yr) Based on DeCarlo et al (2015).

cdm_data_type = Other
VARIABLES:
Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
Sample_ID (unitless)
Core_Length (centimeters)
depth (Water Depth, m)
Lifespan (years)
Tissue_thickness (milimeters)
Growth_rate (centimeters per year)
Density (grams per centimeters cubed)
Bioerosion_volume (percent)
Calcification_rate (grams per square centimeter per year)
Bioerosion_rate (miligrams per square centimeter per year)
delta_N_15 (per mil)
delta_N_15_error (per mil)


[w0008 seasoar CTD] - SeaSoar CTD Data from R/V Wecoma cruise W0008 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC program (NEP project) (U.S. GLOBEC Northeast Pacific)

Summary:
SeaSoar CTD data from R/V Wecoma cruise W0008 in the Northeast Pacific in 2000 as part of the U.S. GLOBEC-NEP program.

cdm_data_type = Other
VARIABLES:
link
description


[Warm Core Ring Census (1980-2017)] - Yearly census of Gulf Stream Warm Core Ring formation from 1980 to 2017 (Collaborative Research: GLOBEC Pan Regional Synthesis: The Effect of Varying Freshwater Inputs on Regional Ecosystems in the North Atlantic)

Summary:
Yearly census of Gulf Stream Warm Core Ring formation from 1980 to 2017. This continuous census file contains the formation and demise times and locations, and the area at formation for all 961 WCRs formed between 1980 and 2017 that lived for a week or more. Each row represents a unique Warm Core Ring and is identified by a unique alphanumeric code 'WEyyyymmddA', where 'WE' represents a Warm Eddy (as identified in the analysis charts); 'yyyymmdd' is the year, month and day of formation; and the last character 'A' represents the sequential sighting of the eddies in a particular year. For example, the first ring in 2017 having a trailing alphabet of 'E' indicates that four rings were carried over from 2016 which are still observed on January 1, 2017.

cdm_data_type = Other
VARIABLES:
WCR_Name (unitless)
DOB (unitless)
longitude (degrees_east)
latitude (degrees_north)
Area_km2 (square kilometers (km^2))
DOA (unitless)
Longitude_D (Longitude, decimal degrees)
Latitude_D (Latitude, decimal degrees)


[Water Chemistry] - Water chemistry from discrete seawater samples collected from 2012-2016 at Jarvis Island (Skeletal Records of Coral Reef Bleaching in the Central Equatorial Pacific)

Summary:
This dataset contains information about discrete seawater samples collected from 2012-2016 on Jarvis Island for salinity, nutrients, total alkalinity (TA), and dissolved inorganic carbon (DIC) during each sampling period.

cdm_data_type = Other
VARIABLES:
date_UTC (unitless)
time_UTC (unitless)
latitude (degrees_north)
longitude (degrees_east)
salinity (Sea Water Practical Salinity, unitless)
temperature (degrees Celsius)
pressure (decibars (dbar))
PO4 (Mass Concentration Of Phosphate In Sea Water, micromoles per kilogram (umol/kg))
NO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micromoles per kilogram (umol/kg))
TALK (micromoles per kilogram (umol/kg))
DIC (micromoles per kilogram (umol/kg))
nTALK (N TALK, micromoles per kilogram (umol/kg))
nDIC (N DIC, micromoles per kilogram (umol/kg))
pH (Sea Water Ph Reported On Total Scale, unitless)
pCO2 (P CO2, micro-atmospheres (uatm))
bicarbonate (micromoles per kilogram (umol/kg))
carbonate (micromoles per kilogram (umol/kg))
OM_ar (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[Water Column Data - CTD] - Water column data from CTD casts along the East Siberian Arctic Shelf on R/V Oden during 2011 (ESAS Water Column Methane project) (The East Siberian Arctic Shelf as a Source of Atmospheric Methane: First Approach to Quantitative Assessment)

Summary:
Water column data from CTD casts along the East Siberian Arctic Shelf on R/V Oden during 2011 (ESAS Water Column Methane project)

cdm_data_type = Other
VARIABLES:
station (unitless)
latitude (degrees_north)
longitude (degrees_east)
date (unitless)
depth (m)
depth_sample (Depth, meters)
temperature (celsius)
pH (Sea Water Ph Reported On Total Scale, pH)
salinity (Sea Water Practical Salinity, practical salinity units (PSU))
Cl (millimoles (mM))
SO4 (millimoles (mM))
DOC (micromoles (uM))
TDN (micromoles (uM))
DON (micromoles (uM))
Nox (micromoles (uM))
NO2 (micromoles (uM))
NH4 (micromoles (uM))
TDP (micromoles (uM))
DOP (micromoles (uM))
PO4 (Mass Concentration Of Phosphate In Sea Water, micromoles (uM))
Si (Mass Concentration Of Silicate In Sea Water, micromoles (uM))
CH4 (micromoles (uM))
MOX (nanomole per liter per day (nmol/L/d))


[Water Column Dissolved and Total Dissolvable Metal Concentrations, Hawaii Ocean Timeseries 2020-2023] - Water column dissolved and total dissolvable metal concentrations from Hawaii Ocean Timeseries (HOT) R/V Kilo Moana cruises at station ALOHA, North Pacific Subtropical Gyre, from December 2020 to November 2023 (Quantifying Iron Turnover in the Upper Ocean via Time-series Measurements at Station ALOHA)

Summary:
We collected and analyzed water samples for dissolved and total dissolvable trace metal concentration on Hawaii Ocean Time-series (HOT) cruises between December 2020 and November 2023. All samples were collected at Station ALOHA. Samples were collected using a trace metal rosette. Approx. 12 depth samples were collected for each cruise within the upper 350 m of the water column.

Dissolved metal measurements reflect samples filtered through a 0.2 micron filter. Total dissolvable metal measurements represent unfiltered samples. Both sample types were acidified for > 2 months after collection and metals were extracted via chelating resin (Nobias PA-1) and analyzed by inductively coupled plasma mass spectrometry at the University of Hawaii at Manoa using a Thermo Scientific iCAP-TQ mass spectrometer.

This dataset is part of a larger study focused on the cycling of trace metals in the North Pacific Subtropical Gyre, and is embedded within the HOT program.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
ISO_DateTime_Local (Time, unitless)
time (Time_utc, seconds since 1970-01-01T00:00:00Z)
longitude (degrees_east)
latitude (degrees_north)
depth (m)
dTi (nanomoles per liter (nmol/L))
dTi_qc (unitless)
dMn (nanomoles per liter (nmol/L))
dMn_qc (unitless)
dCo (nanomoles per liter (nmol/L))
dCo_qc (unitless)
dFe (nanomoles per liter (nmol/L))
dFe_qc (unitless)
... (28 more variables)


[Water column geochemical composition] - Geochemical composition of water column samples collected in the Equatorial Pacific during October and November 2020 on R/V Kilo Moana cruise KM2012 (Collaborative Research: How and Why eNd Tracks Ocean Circulation)

Summary:
Water column, sediment, and pore water samples were collected during R/V Kilo Moana cruise KM2012 in the Equatorial Pacific during October and November 2020. This dataset includes elemental concentrations, Neodymium isotope ratios, pH, and nutrients from the water column samples.

cdm_data_type = Other
VARIABLES:
Station_Number (unitless)
Latitude (degrees_north)
longitude (degrees_east)
Date (unitless)
bottom_depth (meters (m))
sample_name (unitless)
depth (m)
La_pM (picomolar (pmol/L))
Ce_pM (picomolar (pmol/L))
Pr_pM (picomolar (pmol/L))
Nd_pM (picomolar (pmol/L))
Sm_pM (picomolar (pmol/L))
Eu_pM (picomolar (pmol/L))
Gd_pM (picomolar (pmol/L))
Tb_pM (picomolar (pmol/L))
Dy_pM (picomolar (pmol/L))
Ho_pM (picomolar (pmol/L))
Er_pM (picomolar (pmol/L))
Tm_pM (picomolar (pmol/L))
Yb_pM (picomolar (pmol/L))
Lu_pM (picomolar (pmol/L))
Co_nM (nanomolar (nmol/L))
Ni_nM (nanomolar (nmol/L))
Cu_nM (nanomolar (nmol/L))
Zn_nM (nanomolar (nmol/L))
... (11 more variables)


[Water column methane ethylene and nutrients] - Concentration measurements of water column phosphate, nitrate and nitrite, dissolved organic phosphorus, methane, and ethylene from samples collected during the R/V Neil Armstrong cruise AR16 in the western North Atlantic Ocean in May 2017 (Methane, Ethylene, and Dissolved Organic Phosphorus Cycling in the Western North Atlantic Ocean)

Summary:
Concentration measurements of water column phosphate, nitrate and nitrite, dissolved organic phosphorus, methane, and ethylene from samples collected during the R/V Niel Armstrong cruise AR16 in the western North Atlantic Ocean in May 2017. Seawater was collected from Niskin bottles deployed on a rosette with a CTD.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Station (unitless)
Cast (unitless)
latitude (degrees_north)
longitude (degrees_east)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
CH4 (nanomoles per liter (nmol L-1))
C2H4 (C2 H4, nanomoles per liter (nmol L-1))
NOx (micromoles per liter (umol L-1))
LLN (micromoles per liter (umol L-1))
PO4 (micromoles per liter (umol L-1))
SRP (micromoles per liter (umol L-1))
TDP (micromoles per liter (umol L-1))


[Water Column Methane Oxidation Gulf of Alaska] - Water column methane, methane oxidation, and pmoA gene copies above methane seeps determined from samples collected off the Aleutian Islands, Gulf of Alaska on R/V Atlantis cruise AT50-24 in May to June 2024 (Collaborative Research: Redefining the footprint of deep ocean methane seepage for benthic ecosystems)

Summary:
Cold seeps along the eastern Aleutian subduction zone in the Gulf of Alaska fuel benthic ecosystems through microbial methane (CH₄) consumption, yet the structure and controls of water column CH₄ oxidation in these deep, cold waters remain poorly resolved. During a May–June 2024 expedition with the R/V Atlantis and HOV Alvin, we studied CH₄ and its bacterial oxidation from surface to seafloor above three deep seep sites (2000 to 5000 meters): Edge, Shumagin, and Sanak, by combining radiotracer incubations with pmoA gene  profiling. CH₄ oxidation occurred throughout the water column, with peak rates (1 to 242 nanomoles per liter per day) in near-seafloor Alvin samples and 0.1 to 0.25 nanomoles per liter per day in CTD rosette samples 10 to 30 meters above bottom. Rates varied by site and depth. CH₄ oxidation in surface waters, coinciding with an algal bloom, suggests cryptic cycling via in situ production and consumption. A ~325-meter near-bottom CTD transect at Sanak revealed lateral gradients in CH₄ and oxidation aligned with bottom currents, with oxidation highest near hydrate-bearing gas vents and at the off-seep distal end. These findings show that aerobic CH₄ oxidation peaks near the seafloor to ~30 meters above but extends laterally and vertically beyond active seepage. Oxidation was detected even where methanotroph gene abundance was low, potentially indicating the influence of lateral CH₄ transport and tidal currents. The methanosphere thus emerges as a dynamic and spatially diffuse microbial system shaped by CH₄ availability and physical transport processes.

cdm_data_type = Other
VARIABLES:
Date_UTC (unitless)
CTD_Start_Time_or_Alvin_Niskin_Closure_UTC (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Site_Name (unitless)
CTD_or_Alvin_Sample_Number (unitless)
Waypoint (unitless)
latitude (degrees_north)
longitude (degrees_east)
Water_Depth (meters below sea level (mbsl))
Methane (nanomoles per liter (nmol L-1))
Methane_oxidation_Replicate_1 (nanomoles per liter per day (nmol L-1 d-1))
Methane_oxidation_Replicate_2 (nanomoles per liter per day (nmol L-1 d-1))
Methane_oxidation_Replicate_3 (nanomoles per liter per day (nmol L-1 d-1))
pmoA_gene_copy_number (Log pmoA copies per liter)


[Water column methane, methane oxidation, and pmoA gene copies] - Water column methane, methane oxidation, and pmoA gene copies above southern California methane seeps determined from samples collected on R/V Atlantis cruise AT50-12 in July 2023 (Collaborative Research: Redefining the footprint of deep ocean methane seepage for benthic ecosystems)

Summary:
Marine methane (CH₄) seeps are dynamic biogeochemical systems that modulate carbon cycling and support high-biomass communities through microbial methane (CH₄) oxidation. While most CH₄ is consumed anaerobically in sediments, a fraction enters the water column, where aerobic methanotrophs form a biological filter limiting CH₄ flux to the atmosphere. However, the extent to which this microbial activity and CH₄ influence extend beyond visibly active seep zones remains poorly constrained, with implications for deep-sea food webs, biogeochemical gradients, and carbon cycling. We investigated CH₄ dynamics and methanotroph distribution across three seep sites on the Southern California margin (Del Mar, Santa Monica (800 meters) Mound, Lasuen Knoll; ~400–1200 meters depth). Using radiotracer (³H-CH₄) incubations, CH₄ concentration profiling, and particulate methane monooxygenase (pmoA) gene quantification, we sampled vertical and horizontal transects and near-bottom waters via the HOV Alvin. CH₄ oxidation was active not only within seep plumes but also in off-seep regions, with the highest rate (454 nanomoles per liter per day) observed within a CH₄-rich bubble plume. pmoA gene abundances remained relatively stable across both seep and off-seep waters, suggesting a persistent CH₄-oxidizing potential. These findings support an expanded "methanosphere," a CH₄-influenced microbial zone shaped by physical transport and environmental gradients. This dataset is part of a PhD thesis: Klonicki-Ference, Emily F. "Microbial Regulation of Methane and Redox Dynamics in the Water Column: From a Proterozoic Ocean Analog to Modern Marine Seeps." PhD diss., University of California, Los Angeles, 2025.

cdm_data_type = Other
VARIABLES:
Date_UTC (unitless)
CTD_Start_Time_or_Alvin_Niskin_Closure_UTC (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Site_Name (unitless)
CTD_or_Alvin_Sample_Number (unitless)
Waypoint (unitless)
latitude (degrees_north)
longitude (degrees_east)
Water_Depth (meters below sea level (mbsl))
Methane (nanomoles per liter (nmol L-1))
... (4 more variables)


[Water Column Nitrate d15N Cocos Ridge Upper 1000m] - Average nitrate d15N values from the upper 1000 meters of the water column at four stations sampled in the Eastern Tropical North Pacific on R/V Sally Ride cruise SR2113 in December 2021 (Collaborative Research: New approaches to study calcium carbonate dissolution on the sea floor and its impact on paleo-proxy interpretations)

Summary:
We report nitrate isotope data at four stations (CR01, CR02, CR03, and CR05) in the Eastern Tropical North Pacific (ETNP). The cruise (R/V Sally Ride SR2113) occupied these four stations near the Cocos Ridge between 6.8 to 5.3 degrees North latitude and 86.6 to 88.26 degrees West longitude. Sampling occurred between December 2-14, 2021. A 24-bottle Niskin rosette and CTD were used to collect 30-milliliter (mL) water samples that were later analyzed using the denitrifier method. The data were collected by Kameko Landry in the Stable Isotope Biogeochemistry Laboratory at Boston College.

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
depth (Depth_m, m)
WC_NO3 (micromoles per kilogram (umol/kg))
WC_d15N (permille vs air)
WC_d15N_1sd (permille vs air)
Latitude (degrees_east)
longitude (degrees_east)
Date (unitless)


[Water column Th-234 activities] - Water column Th-234 activities from 4-liter water samples at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017 (Collaborative Research:   Are all traps created equal?  A multi-method assessment of the collection and detection of sinking particles in the ocean)

Summary:
Water column Th-234 activities from 4-liter water samples at the Porcupine Abyssal Plain Sustained Observatory (PAP-SO) site in the Northeast Atlantic Ocean during RRS Discovery cruise DY077 in April of 2017.

cdm_data_type = Other
VARIABLES:
deployment (unitless)
station (unitless)
cast (unitless)
bottle (unitless)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
date (unitless)
time2 (Time, unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
U238_tot (disintegration per minute per liter (dpm/L))
U238_tot_err (disintegration per minute per liter (dpm/L))
Th234_tot (disintegration per minute per liter (dpm/L))
Th234_tot_err (disintegration per minute per liter (dpm/L))


[Water Mass Fractions - 160 yrs] - The fraction of water last ventilated in a given region in a time less than or equal to 160 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Water mass fractions and ages calculated from hydrographic and tracer data using a maximum-entropy inversion technique.\r\n\r\nThis dataset contains the fraction of water last ventilated in a given region in a time less than or equal to 160 years ago as well as the corresponding ensemble standard deviations.

cdm_data_type = Other
VARIABLES:
LBIR_Fraction (unitless (fraction))
LBIR_Fraction_Uncert (unitless (fraction))
AONG_Fraction (unitless (fraction))
AONG_Fraction_Uncert (unitless (fraction))
SPNA_Fraction (unitless (fraction))
SPNA_Fraction_Uncert (unitless (fraction))
STNA_Fraction (unitless (fraction))
STNA_Fraction_Uncert (unitless (fraction))
MED_Fraction (unitless (fraction))
MED_Fraction_Uncert (unitless (fraction))
NAAD_Fraction (unitless (fraction))
NAAD_Fraction_Uncert (unitless (fraction))
SAAD_Fraction (unitless (fraction))
SAAD_Fraction_Uncert (unitless (fraction))
OTHER_Fraction (unitless (fraction))
OTHER_Fraction_Uncert (unitless (fraction))
Ideal_Mean_Age (years)
Ideal_Mean_Age_Uncert (years)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
Distance_East (kilometers (km))
Cruise_ID (unitless)
Station_No (unitless)
Cast_No (unitless)
Sample_Bottle (unitless)
Date (unitless)


[Water Mass Fractions - 39 yrs] - The fraction of water last ventilated in a given region in a time less than or equal to 39 years ago based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Water mass fractions and ages calculated from hydrographic and tracer data using a maximum-entropy inversion technique.\r\n\r\nThis dataset contains the fraction of water last ventilated in a given region in a time less than or equal to 39 years ago as well as the corresponding ensemble standard deviations.

cdm_data_type = Other
VARIABLES:
LBIR_Fraction (unitless (fraction))
LBIR_Fraction_Uncert (unitless (fraction))
AONG_Fraction (unitless (fraction))
AONG_Fraction_Uncert (unitless (fraction))
SPNA_Fraction (unitless (fraction))
SPNA_Fraction_Uncert (unitless (fraction))
STNA_Fraction (unitless (fraction))
STNA_Fraction_Uncert (unitless (fraction))
MED_Fraction (unitless (fraction))
MED_Fraction_Uncert (unitless (fraction))
NAAD_Fraction (unitless (fraction))
NAAD_Fraction_Uncert (unitless (fraction))
SAAD_Fraction (unitless (fraction))
SAAD_Fraction_Uncert (unitless (fraction))
OTHER_Fraction (unitless (fraction))
OTHER_Fraction_Uncert (unitless (fraction))
Ideal_Mean_Age (years)
Ideal_Mean_Age_Uncert (years)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
Distance_East (kilometers (km))
Cruise_ID (unitless)
Station_No (unitless)
Cast_No (unitless)
Sample_Bottle (unitless)
Date (unitless)


[Water Mass Fractions - Ages] - Mean ventilation age reported for 7 regions of the Atlantic based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Water mass fractions and ages calculated from hydrographic and tracer data using a maximum-entropy inversion technique.\r\n\r\nThis dataset contains the fraction of water last ventilated in a given region in a time less than or equal to 39 years ago as well as the corresponding ensemble standard deviations.

cdm_data_type = Other
VARIABLES:
LBIR_Age (years)
LBIR_Age_Uncert (years)
AONG_Age (years)
AONG_Age_Uncert (years)
SPNA_Age (years)
SPNA_Age_Uncert (years)
STNA_Age (years)
STNA_Age_Uncert (years)
MED_Age (years)
MED_Age_Uncert (years)
NAAD_Age (years)
NAAD_Age_Uncert (years)
SAAD_Age (years)
SAAD_Age_Uncert (years)
OTHER_Age (years)
OTHER_Age_Uncert (years)
Ideal_Mean_Age (years)
Ideal_Mean_Age_Uncert (years)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
Distance_East (kilometers (km))
Cruise_ID (unitless)
Station_No (unitless)
Cast_No (unitless)
Sample_Bottle (unitless)
Date (unitless)


[Water Mass Fractions - All Years] - The fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) based on samples collected from R/V Knorr cruises KN199-04 and KN204-01 during 2010-2011 (U.S. GEOTRACES North Atlantic Transect)

Summary:
Water mass fractions and ages calculated from hydrographic and tracer data using a maximum-entropy inversion technique.\r\n\r\nThis dataset contains the fraction of water last ventilated in a given region regardless of the time elapsed since ventilation (in practice, younger than 4000 years) as well as the corresponding ensemble standard deviations.

cdm_data_type = Other
VARIABLES:
LBIR_Fraction (unitless (fraction))
LBIR_Fraction_Uncert (unitless (fraction))
AONG_Fraction (unitless (fraction))
AONG_Fraction_Uncert (unitless (fraction))
SPNA_Fraction (unitless (fraction))
SPNA_Fraction_Uncert (unitless (fraction))
STNA_Fraction (unitless (fraction))
STNA_Fraction_Uncert (unitless (fraction))
MED_Fraction (unitless (fraction))
MED_Fraction_Uncert (unitless (fraction))
NAAD_Fraction (unitless (fraction))
NAAD_Fraction_Uncert (unitless (fraction))
SAAD_Fraction (unitless (fraction))
SAAD_Fraction_Uncert (unitless (fraction))
OTHER_Fraction (unitless (fraction))
OTHER_Fraction_Uncert (unitless (fraction))
Ideal_Mean_Age (years)
Ideal_Mean_Age_Uncert (years)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
Distance_East (kilometers (km))
Cruise_ID (unitless)
Station_No (unitless)
Cast_No (unitless)
Sample_Bottle (unitless)
Date (unitless)


[Water temperature at coral reefs in Palau] - Water temperature measured at six coral reefs sites in Palau from 2021 to 2023 (Collaborative Research: How do selection, plasticity, and dispersal interact to determine coral success in warmer and more variable environments?)

Summary:
Water temperature was measured at six coral reef sites in Palau from 2021 to 2023. Loggers (Hobo Tidbit) were attached to threaded rods embedded in the reef using zip ties. Water temperature was measured every 30 minutes.

cdm_data_type = Other
VARIABLES:
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Site (unitless)
Latitude (degrees_north)
longitude (degrees_east)
Temperature (degrees Celsius)


[Water temperature data] - Water temperature data from stable isotope labeling experiments conducted from 2012. (Eutrophication Effects on Sediment Metabolism and Benthic Algal-bacterial Coupling: An Application of Novel Techniques in a LTER Estuary)

Summary:
Water temperature data from stable isotope labeling experiments conducted from 2012.

cdm_data_type = Other
VARIABLES:
month (unitless)
date (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
time2 (Time, unitless)
sampleID (Sample ID, unitless)
bucket (unitless)
temp (Temperature, celsius)
lntemp (celsius)


[Water temperature for Palau corals] - Water temperature records for Acropora hyacinthus coral colonies located in either patch or fore reefs of the Palau Archipeglo from November 2017 to January 2020 (Predicting the global location of heat tolerant corals: Palau patch reefs as a general model)

Summary:
Water temperature records for Acropora hyacinthus coral colonies located in either patch or fore reefs of the Palau Archipeglo from November 2017 to July 2018.

cdm_data_type = Other
VARIABLES:
Collection_date_time (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
Temperature (degrees Celsius)
Colony_tag (unitless)
latitude (degrees_north)
longitude (degrees_east)
Reef_number (unitless)
Reef_type (unitless)
Species (unitless)


[Water temperature] - Water temperature during coral calcification experiments conducted on Oahu, Hawaii from November of 2014 to November of 2015 (Will corals recover from bleaching under ocean acidification conditions?)

Summary:
Water temperature during coral calcification experiments conducted on Oahu, Hawaii from November of 2014 to November of 2015

cdm_data_type = Other
VARIABLES:
date_HST (unitless)
time_HST (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
t1 (degrees Celsius)
t2 (degrees Celsius)
t3 (degrees Celsius)
t4 (degrees Celsius)
t5 (degrees Celsius)
t6 (degrees Celsius)
t7 (degrees Celsius)
t8 (degrees Celsius)


[Watershed carbon concentrations] - York River Estuary watershed concentrations of dissolved inorganic carbon, dissolved organic carbon, and particulate organic carbon, 2019-2021 (Alteration of carbon fluxes by intense phytoplankton blooms in a microtidal estuary)

Summary:
We measured the concentrations of dissolved inorganic carbon (DIC), dissolved organic carbon (DOC), and particulate organic carbon (POC) at four stations in the Pamunkey and Mattaponi Rivers, the main freshwater sources to the York River Estuary (YRE), approximately monthly from April 2019 to December 2019, and on selected dates during 2020 and 2021 to capture a wide range of discharge conditions.  Sampling locations included the USGS non-tidal gauging stations above the fall line on each river, and a station in the tidal fresh region of each river, approximately halfway between the gauges and the confluence of the two rivers at the head of the YRE.  Samples were collected to assess variation in each carbon species with freshwater discharge, changes in concentrations in the tidal fresh zone of the estuary, and carbon loading to the YRE.

cdm_data_type = Other
VARIABLES:
Station (unitless)
latitude (degrees_north)
longitude (Long, degrees_east)
Date (unitless)
Temp (degrees Celsius (°C))
Salinity (practical salinity units (PSU))
DIC_uM (micromoles per liter (umol/l))
DIC_se (micromoles per liter (umol/l))
DOC_uM (micromoles per liter (umol/l))
DOC_se (micromoles per liter (umol/l))
POC_mgl (milligrams per liter (mg/l))
POC_se (milligrams per liter (mg/l))


[WBTS Copepod abundance per m2] - Abundance of copepods in Wilkinson Basin Time Series Station, Gulf of Maine, 2005-2016 (Collaborative Research: Mechanisms supporting persistence of a key plankton species during climate change on the Northwest Atlantic continental shelf)

Summary:
copepod abundance WBTS 2005-2016

cdm_data_type = Other
VARIABLES:
Date (seconds since 1970-01-01T00:00:00Z)
NET_depth
Water_Depth
Num_Cfin_Id_subsample
Nauplii
CI
CII
CIII
CIV
CV
Female
Male
Calanus_finmarchicus
Calanus_hyperboreus
Paraeucheata_spp
Pseudocalanus_spp
Centropages_spp
Metridia_spp
Oithona_spp
Microcalanus_spp
Clauso_Para_Parvo_spp
Temora_spp
other_copepod_spp


[Weekly Calcification Rates] - Weekly coral calcification rates in the CO2 manipulation experiment conducted on Porites corals from Palau (Toward Predicting the Impact of Ocean Acidification on Net Calcification by a Broad Range of Coral Reef Ecosystems: Identifying Patterns and Underlying Causes)

Summary:
Weekly coral calcification rates in the CO2 manipulation experiment conducted on Porites corals from Palau.

cdm_data_type = Other
VARIABLES:
week (unitless)
CO2_treatment (unitless)
reef_omega_AR (unitless)
calc_rate (milligrams per square centimeter per week (mg/cm2/wk))
calc_rate_se (milligrams per square centimeter per week (mg/cm2/wk))


[Weekly Surface Water Samples] - Weekly surface water samples from Newport Pier, CA collected between 11 January 2012 and 3 November 2023 (Biological Controls on the Ocean C:N:P ratios)

Summary:
Weekly surface water samples from Newport Pier, CA, were collected between 11 January 2012 and 3 November 2023.

This project is a continuation of a time series with weekly surface water sampling from the Microbes in the Coastal Region of Orange County (MICRO) time series station at Newport Pier (33°36.37'N, 117°55.87'W). We measured dissolved nitrate and phosphate in the water, as well as particulate organic carbon, nitrogen and phosphorus.

These data were published in Fagan et al. (2019), Larkin et al. (2020), and a pending publication, Larkin et al. (in press).

cdm_data_type = Other
VARIABLES:
Date (unitless)
NO3_1 (micromolar (uM))
NO3_2 (micromolar (uM))
NO3_3 (micromolar (uM))
NO3_4 (micromolar (uM))
NO3_5 (micromolar (uM))
NO3_6 (micromolar (uM))
NO3_Avg (micromolar (uM))
SRP_1 (micromolar (uM))
SRP_2 (micromolar (uM))
SRP_3 (micromolar (uM))
SRP_4 (micromolar (uM))
SRP_5 (micromolar (uM))
SRP_6 (micromolar (uM))
SRP_Avg (micromolar (uM))
POP_1 (micromolar (uM))
POP_2 (micromolar (uM))
POP_3 (micromolar (uM))
... (31 more variables)


[West Antarctic FeHS and HS-total] - Dissolved iron-bound and total Fe-binding humic-like substances for water column samples collected in the West Antarctic Peninsula region of the Southern Ocean on RVIB Nathaniel B. Palmer cruise NBP1608 in Sept-Oct 2016 (Collaborative Research: Investigating Iron-binding Ligands in Southern Ocean Diatom Communities: The Role of Diatom-Bacteria Associations)

Summary:
This dataset includes the concentrations of in-situ iron bound to electroactive humic-like substances and total electroactive iron-binding humic-like substances from discrete depth profile samples collected on the NBP16-08 cruise on the RVIB Nathaniel B. Palmer in the Southern Ocean from 11 September 2016 to 10 October 2016.

This project investigates the impact of Fe-binding humic-like substances on Fe biogeochemistry near the West Antarctic Peninsula and Drake Passage. The project used depth profile samples to characterize the contributions of humic-like substances to Fe biogeochemistry across gradients in Fe, water masses, and primary productivity in the Southern Ocean. Understanding the distributions of Fe-binding humic-like substances provides insight into their contribution to Fe stabilization and helps elucidate specific sources of these ligands.

cdm_data_type = Other
VARIABLES:
CRUISE_ID (unitless)
EVTNBR (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
PLATFORM (unitless)
CASTNBR (unitless)
STNNBR (unitless)
BTLNBR (unitless)
depth (Sampdepth, m)
SAMPDILUTION (VOL_SAMP_ML:VOL_MILLIQ_ML)
HSFe_D_CONC_uG_SRFA_EQ_L (micrograms of SRFA equivalents per liter (μg SRFA EQ/L))
HSFe_D_STDEV_uG_SRFA_EQ_L (micrograms of SRFA equivalents per liter (μg SRFA EQ/L))
HSFe_D_CONC_NMOL_FE_EQ_L (nanomoles Fe equivalents per liter (NMOL FE EQ/L))
HSFe_D_STDEV_NMOL_FE_EQ_L (nanomoles Fe equivalents per liter (NMOL FE EQ/L))
HSFe_D_COUNT (unitless)
HSFe_D_FLAG (unitless)
... (6 more variables)


[West Bay 2011-2012 Acoustic Time Series: raw files] - Raw files from DSG hydrophone collected from the West Bay Marine Reserve in Pamlico Sound, NC during 2011 (Larval settlement soundscapes project) (Can you hear me now? Estuarine soundscapes and their role in larval settlement)

Summary:
This dataset contains raw files from a DSG hydrophone deployed at the West Bay Marine Reserve in Pamlico Sound, North Carolina, USA during 2011 and 2012.

cdm_data_type = Other
VARIABLES:
deployment (unitless)
latitude (degrees_north)
longitude (degrees_east)
year (unitless)
month_start (unitless)
day_start (unitless)
time_start (unitless)
ISO_DateTime_Local_start (unitless)
month_end (unitless)
day_end (unitless)
time_end (unitless)
ISO_DateTime_Local_end (unitless)
duration_days (days)
record_interval (minutes)
record_duration (seconds)
hydrophone_calib (dB V/uPa)
DSG_gain (dB)
first_file (unitless)
last_file (unitless)
file_size_GB (GigaBytes)
file_name (unitless)


[West Channel currents 2020] - Structure of current flow in the West Channel in Chotawhatchee Bay, Florida from Jun 13 to Jun 19, 2020 (Collaborative Research: Megaripples as biocatalytical filters)

Summary:
The data set presents in-situ current flow measurements recorded with an upward looking acoustic Doppler profiler in the West Channel of Choctawhatchee Bay near Destin, FL (Lat: 30.3925°N, Long: -86.5233°W). The water depth within the channel ranges from 3 to 7 m and varies with the tide (diurnal tide, range ~0.5 m). The Doppler profiler was positioned near the middle of the channel at approximately 4 m water depth and recorded flow velocity and directions at 0.5 m vertical intervals from 0.7 m above the bottom to the water surface.

cdm_data_type = Other
VARIABLES:
Date (unitless)
time_unitless (Time, unitless)
Battery (Volts (V))
Heading (Degrees)
Pitch (Degrees)
Roll (Degrees)
Pressure (dbar)
Temperature (degrees Celsius)
Speed_1 (meters per second (m/s))
Dir_1 (Degrees)
Speed_2 (meters per second (m/s))
Dir_2 (Degrees)
Speed_3 (meters per second (m/s))
Dir_3 (Degrees)
Speed_4 (meters per second (m/s))
Dir_4 (Degrees)
Speed_5 (meters per second (m/s))
Dir_5 (Degrees)
Speed_6 (meters per second (m/s))
Dir_6 (Degrees)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[West Channel currents 2021] - Structure of current flow in the West Channel in Chotawhatchee Bay, Florida from Nov 15 to Nov 20, 2021 (Collaborative Research: Megaripples as biocatalytical filters)

Summary:
The data set presents in-situ current flow measurements recorded with an upward looking acoustic Doppler profiler in the West Channel of Choctawhatchee Bay near Destin, FL (Lat: 30.3925°N, Long: -86.5233°W). The water depth within the channel ranges from 3 to 7 m and varies with the tide (diurnal tide, range ~0.5 m). The Doppler profiler was positioned near the middle of the channel at approximately 4.5 m water depth and recorded flow velocity and directions at 0.5 m vertical intervals from 0.9 m above the bottom to the water surface.

cdm_data_type = Other
VARIABLES:
Date (unitless)
time_unitless (Time, unitless)
Battery (Volts (V))
Heading (Degrees)
Pitch (Degrees)
Roll (Degrees)
Pressure (dbar)
Temperature (degrees Celsius)
Speed_1 (meters per second (m/s))
Dir_1 (Degrees)
Speed_2 (meters per second (m/s))
Dir_2 (Degrees)
Speed_3 (meters per second (m/s))
Dir_3 (Degrees)
Speed_4 (meters per second (m/s))
Dir_4 (Degrees)
Speed_5 (meters per second (m/s))
Dir_5 (Degrees)
Speed_6 (meters per second (m/s))
Dir_6 (Degrees)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[West Channel currents 2022] - Structure of current flow in the West Channel in Chotawhatchee Bay, Florida from Mar 29 to Apr 4, 2022 (Collaborative Research: Megaripples as biocatalytical filters)

Summary:
The data set presents in-situ current flow measurements recorded with an upward looking acoustic Doppler profiler in the West Channel of Choctawhatchee Bay near Destin, FL (Lat: 30.3925°N, Long: -86.5233°W). The water depth within the channel ranges from 3 to 7 m and varies with the tide (diurnal tide, range ~0.5 m). The Doppler profiler was positioned near the middle of the channel at approximately 4.1 m water depth and recorded flow velocity and directions at 0.5 m vertical intervals from 0.9 m above the bottom to the water surface.

cdm_data_type = Other
VARIABLES:
Date (unitless)
time_unitless (Time, unitless)
Battery (Volts (V))
Heading (Degrees)
Pitch (Degrees)
Roll (Degrees)
Pressure (dbar)
Temperature (degrees Celsius)
Speed_1 (meters per second (m/s))
Dir_1 (Degrees)
Speed_2 (meters per second (m/s))
Dir_2 (Degrees)
Speed_3 (meters per second (m/s))
Dir_3 (Degrees)
Speed_4 (meters per second (m/s))
Dir_4 (Degrees)
Speed_5 (meters per second (m/s))
Dir_5 (Degrees)
Speed_6 (meters per second (m/s))
Dir_6 (Degrees)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[West Channel currents 2024] - Structure of current flow in the West Channel in Chotawhatchee Bay, Florida from Sep 18 to Sep 24, 2024 (Collaborative Research: Megaripples as biocatalytical filters)

Summary:
The data set presents in-situ current flow measurements recorded with an upward looking acoustic Doppler profiler in the West Channel of Choctawhatchee Bay near Destin, FL (Lat: 30.3925°N, Long: -86.5233°W). The water depth within the channel ranges from 3 to 7 m and varies with the tide (diurnal tide, range ~0.5 m). The Doppler profiler was positioned near the middle of the channel at approximately 3.9 m water depth and recorded flow velocity and directions at 0.5 m vertical intervals from 0.9 m above the bottom to the water surface.

cdm_data_type = Other
VARIABLES:
Date (unitless)
time_unitless (Time, unitless)
Battery (Volts (V))
Heading (Degrees)
Pitch (Degrees)
Roll (Degrees)
Pressure (dbar)
Temperature (degrees Celsius)
Speed_1 (meters per second (m/s))
Dir_1 (Degrees)
Speed_2 (meters per second (m/s))
Dir_2 (Degrees)
Speed_3 (meters per second (m/s))
Dir_3 (Degrees)
Speed_4 (meters per second (m/s))
Dir_4 (Degrees)
Speed_5 (meters per second (m/s))
Dir_5 (Degrees)
Speed_6 (meters per second (m/s))
Dir_6 (Degrees)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[Western Pacific Aerosol Data] - Inorganic nitrogen content; and nitrate, ammonium, and oxygen isotope composition of atmospheric particulates collected on Changdao Island, China from September 22, 2019 to September 5, 2020 (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere)

Summary:
These data include the content of total nitrogen, nitrate isotope (15N), ammonium isotope (15N), and oxygen isotope (17O and 18O) composition of atmospheric particulates collected on Changdao Island, China. Aerosol sampling was conducted from September 22, 2019 to September 5, 2020. A high-volume aerosol sampler (model 2031, Qingdao Laoying Environmental Technology Co) operating at 1.0 m3 min -1 with 25 × 20 cm filters was used. Recognizing the deposition of atmospheric particulates has the potential to understanding the important role of atmospheric deposition to the nitrogen cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to inorganic nitrogen and were collected by Dr. Ren Pen (pren@qnlm.ac) at the Ocean University of China.

cdm_data_type = Other
VARIABLES:
CollectionTime (unitless)
latitude (degrees_north)
longitude (degrees_east)
CollectionPeriod_Hrs (hours)
TotalAirVolume_m3 (cubic meters (m3))
ParticleWeight_g (grams (g))
AmmoniumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
NitrateConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
NitriteConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
Delta15N_Nitrate (parts per thousand (permil) (‰))
Delta15N_Ammonium (parts per thousand (permil) (‰))
Delta18Oxygen_Nitrate (parts per thousand (permil) (‰))
Delta17O_Nitrate (parts per thousand (permil) (‰))


[Western Pacific Cruise Data] - Total organic carbon, total nitrogen content; and nitrate, ammonium and oxygen isotope composition of atmospheric particulates collected aboard R/V Dong Fang Hong-3 in the western North Pacific from October 31 to December 1, 2019. (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere)

Summary:
These data include the content of total organic carbon content, carbon isotope (13C and 14C), total nitrogen, nitrate isotope (15N), ammonium isotope (15N), and oxygen isotope (17O and 18O) composition of atmospheric particulates collected during western North Pacific Cruise. On-ship aerosol sampling was conducted on the R/V Dong Fang Hong-3 during a cruise to the western North Pacific from October 31 to December 1, 2019. Instruments used were two portable aerosol particle samplers (model 2030, Qingdao Laoying Environmental Technology Co.) with a filter size of 9 cm O.D. Recognizing the deposition of atmospheric particulates has the potential to understanding the important role of atmospheric deposition to the nitrogen cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to inorganic nitrogen and were collected by Chief Scientist Zaohui, Chen (chenzhaohui@ouc.edu.cn) at the Ocean University of China.

cdm_data_type = Other
VARIABLES:
Sample_Number (unitless)
Date (unitless)
Start_time (unitless)
time (Start_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Sampling_period_h (hours (hrs))
latitude (degrees_north)
longitude (degrees_east)
Duplicate (unitless)
Total_Air_Volume_L (liter (L))
TotalAirVolume_m3 (cubmic meters (m3))
ParticleWeight_mg (miligrams (mg))
TOC_percent (percentage (%))
TN_percent (percentage (%))
C_N_Ratio (unitless)
Carbon13_12_Ratio (parts per thousand (permil) (‰))
Delta15N_Nitrate (parts per thousand (permil) (‰))
Delta15N_NH4 (parts per thousand (permil) (‰))
Delta18Oxygen_Nitrate (parts per thousand (permil) (‰))
Delta17O_Nitrate (parts per thousand (permil) (‰))


[Western Pacific Hawaii Aerosol Data] - Aerosol composition data of ion concentrations (ammonium, nitrate, nitrite, sodium, chloride, magnesium, calcium, potassium, sulfate); and ammonium and nitrate isotope (15N) of atmospheric particulates collected in Hawaii from March 2021 to August 2022 (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere)

Summary:
These data include aerosol composition data of ion concentrations (ammonium, nitrate, nitrite, sodium, chloride, magnesium, calcium, potassium, sulfate), and ammonium isotope (15N) of atmospheric particulates collected on Oahu, Hawaii. Aerosol sampling was conducted from March 2021 to June 2022 and collected roughly every seven days. A high-volume aerosol sampler operating at 1,200 L min-1 with 25 × 20 cm filters was used. Recognizing the deposition of atmospheric particulates has the potential to understanding the important role of atmospheric deposition to the nitrogen cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to inorganic nitrogen and were collected by Mitchell Pinkerton at the Ocean University of Hawaii.

cdm_data_type = Other
VARIABLES:
Sample_ID (unitless)
Date (unitless)
Collection_Location (units)
latitude (degrees_north)
longitude (degrees_east)
CollectionPeriod_Hrs (hours (hrs))
TotalAirVolume_m3 (Liter (L))
ParticleWeight_g (milligram (mg))
AmmoniumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
NitrateConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
SodiumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
PotassiumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
MagnesiumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
CalciumConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
ChlorideConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
SulfateConcentration_ugPerm3 (micrograms per cubic meter (µg/m3))
Delta15N_Ammonium (parts per thousand (permil) (‰))
Delta15N_Nitrate (parts per thousand (permil) (‰))


[Western Pacific Precipitation Data] - Total organic carbon and total nitrogen content; and nitrogen and oxygen isotope  composition of precipitation collected at Qindao, Yantai and Changdao Island, China from May 17, 2019 to August 31, 2020. (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere)

Summary:
These data include the content of total organic carbon content and total nitrogen, and nitrogen (15N) and oxygen (17O and 18O) isotope composition of precipitation collected at three fixed locations: Qindao (121°28'15" E, 31°37'21" N), Yantai (121°27'40" E, 37°31'20" N), and Changdao Island (120°45'20" E, 38°10'23" N) in China. the rainwater samples collected on the Changdao Island were via an automatic rainwater collector (Model XHARS30C, Jinshui Huayu Scientific Inc. Weifang, China), and all other rainwaters collected in Yantai and Qindao were via stainless buckets from May 17, 2019 to August 31, 2020. Recognizing the deposition from precipitation has the potential to understanding the important role of atmospheric deposition to the nitrogen cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to organic carbon and were collected by Dr. Ren Pen (pren@qnlm.ac) at the Ocean University of China.

cdm_data_type = Other
VARIABLES:
Date (unitless)
Site (unitless)
longitude (degrees_east)
latitude (degrees_north)
Duplicate (unitless)
AmmoniumConcentration_umolperL (micromoles per lieter (umol / L))
NitrateConcentration_umolperL (micromoles per lieter (umol / L))
NitriteConcentration_umolperL (micromoles per lieter (umol / L))
PhosphateConcentration_umolperL (micromoles per lieter (umol / L))
DissolvedSilicaConcentration_umolperL (micromoles per lieter (umol / L))
DINConcentration_umolperL (micromoles per lieter (umol / L))
TDNConcentration_umolperL (micromoles per lieter (umol / L))
DONConcentration_umolperL (micromoles per lieter (umol / L))
DOCConcentration_umolperL (micromoles per lieter (umol / L))
Delta15N_Nitrate (parts per thousand (permil) (‰))
Delta15N_Ammonium (parts per thousand (permil) (‰))
Delta18Oxygen_Nitrate (parts per thousand (permil) (‰))
Delta17Oxygen_Nitrate (parts per thousand (permil) (‰))