[MCR_HIGH RES_DOC] - High Resolution sampling of dissolved organic matter (DOM) around Mo'orea coupled with macroalgal collections (Coral DOM2 project) (Collaborative Research: Dissolved organic matter feedbacks in coral reef resilience: The genomic & geochemical basis for microbial modulation of algal phase shifts)

Data was collected here in collaboration with the MCR-LTER group in July 2016. Dissolved organic carbon (DOC) samples were collected for us during an existing field project (Turbinaria tissue collections). The primary goal was to collect water from as many of ~180 Lagoon sites as possible to obtain high-resolution surface DOC dataset. This dataset includes dissolved organic carbon (DOC) measurements around the periphery of Mo'orea Island from July 26 to September 1, 2016. Samples were taken at 1-meter depth.

cdm_data_type = Other
VARIABLES:
SAMPLE_ID (unitless)
CRUISE (unitless)
STATION (unitless)
TYPE (unitless)
time (ISO Date Time Local, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
DOC_FINAL_uM (DOC FINAL U M, Micromol Carbon)
DOC_SD (Micromol Carbon)
FLAG (unitless)


[MCTD Lake Michigan 2017, 2018 & 2019] - Microstructure profiles at Station AT55 in Lake Michigan from 2017, 2018 and 2019. (Collaborative Research: Regulation of plankton and nutrient dynamics by hydrodynamics and profundal filter feeders)

Turbulent microstructure profiles were collected near Milwaukee, WI, during 2018 between April 5 \u2013 April 20, 2018 at a 55m depth site. Microstructure measurements were collected using an RSI MicroCTD (Rockland Scientific International, Inc.), which measures velocity shear, temperature, turbidity, and chlorophyll concentrations. High resolution velocity shear (512 Hz) measurements were used to estimate turbulent kinetic energy dissipation throughout the water column. Microstructure profiles were collected during fair weather conditions on April 5th, 12th, and 20th.

cdm_data_type = Other
VARIABLES:
profile_name (unitless)
latitude (degrees_north)
longitude (degrees_east)
DOY_GMT (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
pressure (decibar (dbar))
temp (Temperature, degrees Celsius)
S2 (1/s2)
turb (FTU)
chlor (ppb)
dissipation (Watts per kilogram (W/kg))


[Mesocosm CB 2021 Light and Temperature] - Light and temperature data for mesocosm incubation experiment simulating a phytoplankton bloom in Chesapeake Bay August 2021 (Marine Diatom-Parasite Relationships in Upwelling Systems)

A mesocosm experiment was performed in August 2021 on the R/V Hugh Sharp, cruise HRS2110, at a station near the mouth of Chesapeake Bay to simulate a phytoplankton bloom and to assess changes in assemblage and biogeochemical processes while excluding changes due to advection. Three 20-L carboys were filled with filtered bay water, inoculated with surface water and sampled daily for a week. Nutrient concentrations, nitrate and bicarbonate uptake rates, pigment concentrations and samples for 18S rRNA gene sequence analysis were collected once or more times per day. 15NO3- and H13CO3- tracer incubations were performed alongside pigment and DNA sampling to compare temporal trends in community composition and primary productivity (nitrogen (N) and carbon (C) transport rates). These results address the nature of phytoplankton blooms, and present a more complex relationship between bloom progression and phytoplankton diversity that usually assumed or detected by traditional methods. This dataset contains the light and temperature data logged for the three replicate mesocosms over the course of the simulated bloom. These data were collected by Jenna Lee from Princeton University.

cdm_data_type = Other
VARIABLES:
time (Datetime, seconds since 1970-01-01T00:00:00Z)
Temp (degrees Celsius)
Lux (lux (lx))
Logger (unitless)


[Mesocosm CB 2021 Nutrients] - Nutrient data for mesocosm incubation experiment simulating a phytoplankton bloom in Chesapeake Bay August 2021 (Marine Diatom-Parasite Relationships in Upwelling Systems)

A mesocosm experiment was performed in August 2021 on the R/V Hugh Sharp, cruise HRS2110, at a station near the mouth of Chesapeake Bay to simulate a phytoplankton bloom and to assess changes in assemblage and biogeochemical processes while excluding changes due to advection. Three 20-L carboys were filled with filtered bay water, inoculated with surface water and sampled daily for a week. Nutrient concentrations, nitrate and bicarbonate uptake rates, pigment concentrations and samples for 18S rRNA gene sequence analysis were collected once or more times per day. 15NO3- and H13CO3- tracer incubations were performed alongside pigment and DNA sampling to compare temporal trends in community composition and primary productivity (nitrogen (N) and carbon (C) transport rates). These results address the nature of phytoplankton blooms, and present a more complex relationship between bloom progression and phytoplankton diversity that usually assumed or detected by traditional methods. This dataset contains the nutrient data for the three replicate mesocosms over the course of the simulated bloom. These data were collected by Jenna Lee from Princeton University.

cdm_data_type = Other
VARIABLES:
Samp_No (unitless)
Carboy (unitless)
Rep (unitless)
Date_Local (unitless)
Time_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Nitrite (micromolar (µM))
Nitrate (micromolar (µM))
Phosphate (micromolar (µM))
Silicate (micromolar (µM))
Notes (unitless)


[Mesocosm CB 2021 Pigments] - Pigment concentration data for mesocosm incubation experiment simulating a phytoplankton bloom in Chesapeake Bay August 2021 (Marine Diatom-Parasite Relationships in Upwelling Systems)

A mesocosm experiment was performed in August 2021 on the R/V Hugh Sharp, cruise HRS2110, at a station near the mouth of Chesapeake Bay to simulate a phytoplankton bloom and to assess changes in assemblage and biogeochemical processes while excluding changes due to advection. Three 20-L carboys were filled with filtered bay water, inoculated with surface water and sampled daily for a week. Nutrient concentrations, nitrate and bicarbonate uptake rates, pigment concentrations and samples for 18S rRNA gene sequence analysis were collected once or more times per day. 15NO3- and H13CO3- tracer incubations were performed alongside pigment and DNA sampling to compare temporal trends in community composition and primary productivity (nitrogen (N) and carbon (C) transport rates). These results address the nature of phytoplankton blooms, and present a more complex relationship between bloom progression and phytoplankton diversity that usually assumed or detected by traditional methods. This dataset contains the measured pigment concentrations for the three replicate mesocosms over the course of the simulated bloom. These data were collected by Jenna Lee from Princeton University.

cdm_data_type = Other
VARIABLES:
Samp_No (unitless)
Carboy (unitless)
Rep (unitless)
Day (day)
Date_Local (unitless)
Time_Local_Collected (unitless)
Time_Local_Filtered (unitless)
time (Iso_datetime_utc_collection, seconds since 1970-01-01T00:00:00Z)
Samp_Vol (liters)
Chl_c1c2 (micrograms of pigment  per liter (µg L-1))
Perid (micrograms of pigment  per liter (µg L-1))
ButFuc_19 (micrograms of pigment  per liter (µg L-1))
Fuco (micrograms of pigment  per liter (µg L-1))
HexFuc_19 (micrograms of pigment  per liter (µg L-1))
Zeax (micrograms of pigment  per liter (µg L-1))
... (4 more variables)


[Mesocosm CB 2021 Uptake Rates] - Nitrogen and carbon uptake rates for mesocosm incubation experiment simulating a phytoplankton bloom in Chesapeake Bay August 2021 (Marine Diatom-Parasite Relationships in Upwelling Systems)

A mesocosm experiment was performed in August 2021 on the R/V Hugh Sharp, cruise HRS2110, at a station near the mouth of Chesapeake Bay to simulate a phytoplankton bloom and to assess changes in assemblage and biogeochemical processes while excluding changes due to advection. Three 20-L carboys were filled with filtered bay water, inoculated with surface water and sampled daily for a week. Nutrient concentrations, nitrate and bicarbonate uptake rates, pigment concentrations and samples for 18S rRNA gene sequence analysis were collected once or more times per day. 15NO3- and H13CO3- tracer incubations were performed alongside pigment and DNA sampling to compare temporal trends in community composition and primary productivity (nitrogen (N) and carbon (C) transport rates). These results address the nature of phytoplankton blooms, and present a more complex relationship between bloom progression and phytoplankton diversity that usually assumed or detected by traditional methods. This dataset contains the measured nitrogen and carbon uptake rates for the three replicate mesocosms over the course of the simulated bloom. These data were collected by Jenna Lee from Princeton University.

cdm_data_type = Other
VARIABLES:
Samp_ID (unitless)
Carboy (unitless)
Rep (unitless)
Date_Local (unitless)
Tracer_Vol_13C (milliliters (mL))
Tracer_Vol_15N (milliliters (mL))
Time_Local_Collected (unitless)
Time_Local_Added (unitless)
Time_Local_Filtered (unitless)
Samp_Vol (milliliters)
Rinse (unitless)
POC (micromolar (µM))
PON (micromolar (µM))
C_transport (micromolar per day (µM d-1)))
N_transport (micromolar per day (µM d-1)))
Notes (unitless)
time (Iso_datetime_utc_collected, seconds since 1970-01-01T00:00:00Z)


[Metagenomic samples] - Metagenomic sample information, genetic accession identifiers (NCBI SRA, JGI IMG), and estimated gene copies from Orcas Island coastal waters (2 m depth) in May and June of 2021 (Collaborative Research: Rhythm and Blooms: Deciphering metabolic, functional and taxonomic interactions over the life cycle of a phytoplankton bloom)

This dataset contains NCBI Sequence Read Archive (SRA) accession numbers, DOE JGI Integrated Microbial Genomes & Microbiome (IMG/M) IDs, and estimated gene copies for metagenomic samples collected at Orcas Island, WA, USA Coastal Ocean (2m depth) from 5/27/21 to 6/18/21 collected as part of the following study.

Study abstract:

Floating, single-celled algae, or phytoplankton, form the base of marine food webs. When phytoplankton have sufficient nutrients to grow quickly and generate dense populations, known as blooms, they influence productivity of the entire food web, including rich coastal fisheries. The present research explores how the environment (nutrients) as well as physical and chemical interactions between individual cells in a phytoplankton community and their associated bacteria act to control the timing of bloom events in a dynamic coastal ecosystem. The work reveals key biomolecules within the base of the food web that can inform food web functioning (including fisheries) and be used in global computational models that forecast the impacts of phytoplankton activities on global carbon cycling. A unique set of samples and data collected in 2021 and 2022 that captured phytoplankton and bacterial communities before, during, and after phytoplankton blooms, is analyzed using genomic methods and the results are used to interrogate these communities for biomolecules associated with blooms stages. The team mentors undergraduates, graduate students, and postdoctoral researchers in the fields of biochemical oceanography, genome sciences, and time-series multivariate statistics. University of Washington organized hackathons to develop publicly accessible portals for the simplified interrogation and visualization of 'omics data, accessible to high schoolers and undergraduates. These portals are implemented in investigator-led undergraduate teaching modules in the University of Rhode Island Ocean Classroom. The research team also returns to Orcas Island, WA, where the field sampling takes place, to host a series of annual Science Weekends to foster scientific engagement with the local community.
Phytoplankton blooms, from initiation to decline, play vital roles in biogeochemical cycling by fueling primary production, influencing nutrient availability, impacting carbon sequestration in aquatic ecosystems, and supporting secondary production. In addition to influences from environmental conditions, the physical and chemical interactions among planktonic microbes can significantly modulate blooms, influencing the growth, maintenance, and senescence of phytoplankton. Recent work in steady-state open ocean ecosystems has shown that important chemicals are transferred amongst plankton on time-dependent metabolic schedules that are related to diel cycles. It is unknown how these metabolic schedules operate in dynamic coastal environments that experience perturbations, such as phytoplankton blooms. Here, the investigators are examining metabolic scheduling using long-term, diel sample sets to reveal how chemical and biological signals associated with the initiation, maintenance, and cessation of phytoplankton blooms are modulated on both short (hrs) and long (days-weeks) time scales. Findings are advancing the ability to predict and manage phytoplankton dynamics, providing crucial insights into ecological stability and future oceanographic sampling strategies. Additionally, outcomes of this study are providing a new foundational understanding of the succession of microbial communities and their chemical interactions across a range of timescales. In the long term, this research has the potential to identify predictors of the timing of phytoplankton blooms, optimize fisheries management, and guide future research on carbon sequestration.

cdm_data_type = Other
VARIABLES:
DateID_PT (unitless)
... (33 more variables)


[Metatranscriptomic nutrient response experiments - 2021 DY131] - Data from nutrient manipulation experiments (conducted on EXPORTS cruise DY131) aimed at relieving or inducing nutrient stress in phytoplankton and quantifying these responses using metatranscriptomic sequencing (Collaborative Research: Diatoms, Food Webs and Carbon Export - Leveraging NASA EXPORTS to Test the Role of Diatom Physiology in the Biological Carbon Pump)

This dataset includes data from nutrient manipulation experiments aimed at relieving or inducing nutrient stress in phytoplankton and quantifying these responses using metatranscriptomic sequencing. Experiments were conducted by adding key macronutrients (N, P, Si) and Fe in different combinations over different growth periods, simulating potential alleviation of in situ nutrient stress or the induction of nutrient stress. Experiments were conducted on the EXports Processes in the Oceans from RemoTe Sensing (EXPORTS) cruise DY131 in the North Atlantic during May of 2021.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Date_UTC (unitless)
Time_UTC (unitless)
Event (unitless)
Activity (unitless)
Station (unitless)
latitude (degrees_north)
longitude (degrees_east)
exp_id (unitless)
Incubation (unitless)
Treatment (unitless)
replicate (unitless)
BioProject (unitless)
BioSample (unitless)
SRA_sample (unitless)
Phosphate (millimoles per cubic meter (mmol m^3))
Phosphate_flag (unitless)
Silicate (millimoles per cubic meter (mmol m^3))
Silicate_flag (unitless)
Nitrite (millimoles per cubic meter (mmol m^3))
Nitrite_flag (unitless)
... (8 more variables)


[Meteorological observations from NOAA station 8761724] - Meteorological observations from NOAA station 8761724, Grande Isle, LA from September 20, 2022, to September 29, 2024. (CAREER: Integrating Seascapes and Energy Flow: learning and teaching about energy, biodiversity, and ecosystem function on the frontlines of climate change)

Subset of the NOAA Tides and Currents NOAA webpage. It includes meteorological observations of wind speed and direction which, in conjunction with landscape data, are used as a rough calculation of fetch distance in this study. Ultimately, the fetch distance variable was not included in the final analysis.

cdm_data_type = Other
VARIABLES:
latitude (degrees_north)
longitude (degrees_east)
Date (unitless)
Time_GMT (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Wind_Speed_kn (knots)
Wind_Dir_deg (degrees)
Wind_Gust_kn (knots)
Air_Temp_F (Degrees Fahrenheit)
Baro_mb (millibar)
Humidity_perc (percentage (%))
Visibility_nm (nanometers)


[Microbial community composition of the Cinder Cones Cold Seep] - Microbial community composition from 16s V4 region amplicon sequencing of the methane Seep at the Cinder Cones Cold Seep site, Nov 2016 (EAGER: Elucidating the Antarctic Methane Cycle at the Cinder Cones Reducing Habitat)

This dataset includes microbial community composition from 16s V4 region amplicon sequencing on 151 marine sediment community samples collected from the Cinder Cones Cold Seep site [-77.8, 166.666] in the Ross Sea region, Antarctica in November 2016. Data are uploaded to the NCBI Sequence Read Archive under submission SUB2655615 [https://www.ncbi.nlm.nih.gov/bioproject/PRJNA387720] with a subset of the data from that archive originating from this project.

cdm_data_type = Other
VARIABLES:
accession (unitless)
sample_name (unitless)
organism (unitless)
host (unitless)
time (Collection Date, seconds since 1970-01-01T00:00:00Z)
geo_loc_name (unitless)
latitude (degrees_north)
longitude (degrees_east)
Replicate (unitless)
Sediment_Depth_cm (centimeters)
Habitat (unitless)


[Microbial Fluid Cell Counts] - Microbial fluid cell count data collected on Falkor (too), cruise Fkt231202 with ROV fluid sampler in the Central Eastern Pacific offshore Costa Rica in Dec 2023 (Octopus Odyssey)

These data are microscopic cell counts of microbes in venting fluids and background seawater samples collected during Octopus Odyssey (too) expedition on Falkor (too), cruise Fkt231202, in the Central Eastern Pacific from December 4th to December 12th, 2023. Instrument used to collect the sampler was a SUPR (Suspended Underwater Particulate Rosette) sampler modified for ROV SuBastian. Cells were visualized using SYBR staining. Samples were collected by Julie Huber.

cdm_data_type = Other
VARIABLES:
Cruise_Number (unitless)
Sample_Number (unitless)
Sample_Type (unitless)
ROV_Storage (unitless)
Sample_code (unitless)
Description (unitless)
Dive (unitless)
Dive_Site (unitless)
Time_UTC (unitless)
Date (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
Cells_per_mL (cells/mL)
standard_deviation (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[Mixed Layer] - Estimates of mixed layer depths (MLD) mean mixed-layer values of temperature, salinity, and other measurements from R/V Roger Revelle cruise RR2201 in the Eastern Indian Ocean (Argo Basin) 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)

This dataset contains estimates of mixed layer depths (MLD) and mean mixed-layer values of temperature, salinity, sigma-t density, % transmission, oxygen concentration, % oxygen saturation, and fluorometric chlorophyll a from CTD downcast profiles for cruise RR2201 on R/V Roger Revelle (BLOOFINZ-IO, January-March 2022) in the Argo Basin region off NW Australia.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Event (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Cycle_Day (unitless)
CTD_Cast (unitless)
MLD (meters (m))
Temp (degrees Celsius)
Saliniity (PSU)
Sigma_t (kg/m3 - 1000)
Xmissn (percent per meter (% m-1))
O2 (micromoles per kilogram (umol kg-1))
O2_pcnt_sat (percent (%))
Fluoro (milligrams per cubic meter (mg m-3))


[MO - biogeochemical and microbial field surveys] - Biogeochemical and microbial field surveys from the BATS site, Bermuda from R/V Atlantic Explorer cruises from 2009-2013 (Ocean Microbial Observatory project) (Transitions in the Surface Layer and the Role of Vertically Stratified Microbial Communities in the Carbon Cycle - An Oceanic Microbial Observatory)

Biogeochemical and microbial field surveys from the BATS site, Bermuda from R/V Atlantic Explorer cruises from 2009-2013. This dataset includes water samples collected from 2009-2013 at the Bermuda Hydrostation that were analyzed for DOC, POC, bacterial abundance, leucine, and thymidine incorporation.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
cruise_id2 (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
station (unitless)
latitude (degrees_north)
longitude (degrees_east)
cast_type (unitless)
cast (unitless)
sample (unitless)
depth_n (Depth, meters)
depth (m)
DOC (micromoles per liter)
DOC_stdev (umol/L)
POC (Particulate Organic Carbon, umol/L)
bact_abund (10^8 cells/liter)
bact_abund_stdev (10^8 cells/liter)
leuc_incorp (picomoles per liter per hour)
leu_sd (picomoles per liter per hour)
thy_incorp (picomoles per liter per hour)
thy_sd (picomoles per liter per hour)


[MO - sugars] - Sugar concentrations from the BATS site in the Sargasso Sea, 2001-2004 (Ocean Microbial Observatory project) (Transitions in the Surface Layer and the Role of Vertically Stratified Microbial Communities in the Carbon Cycle - An Oceanic Microbial Observatory)

Sugar concentrations and dissolved combined neutral sugar (DCNS) dynamics were measured from samples for DCNS collected monthly to bimonthly between 2001 and 2004 at the BATS study site aboard the R/V Weatherbird II, Western Sargasso Sea.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
cruise_id2 (unitless)
cruise_code (unitless)
station (unitless)
cast_type (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
year_decimal
latitude (degrees_north)
longitude (degrees_east)
depth_ (Depth, meters)
depth (m)
fucose (nanomoles/liter)
rhamnose (nanomoles/liter)
arabinose (nanomoles/liter)
galactose (nanomoles/liter)
glucose (nanomoles/liter)
mannose (nanomoles/liter)
DCNS (nanomoles/liter)


[MOCNESS Event Logs ETP] - Date, time, location, and depth range for MOCNESS tows from the R/V Seward Johnson, R/V Knorr in the Eastern Tropical North Pacific from 2007-10-25 to 2009-01-01 (Collaborative Research: Zooplankton in the Redoxcline of the Cariaco Basin: Impact on Biogeochemical Cycling)

Date, time, location, and depth range for MOCNESS tows

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
Station (unitless)
MOC (unitless)
Tow_Type (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
Date_Local (unitless)
Date_UTC (unitless)
Time_In_Local (unitless)
Time_Out_Local (unitless)
Time_In_UTC (unitless)
Time_Out_UTC (unitless)
latitude (degrees_north)
longitude (degrees_east)
Lat_Out (Latitude, decimal degrees)
Lon_Out (Longitude, decimal degrees)
Day_Night (unitless)
Min_Depth (meters (m))
depth (Max Depth, m)
Comments (unitless)


[MOCNESS Event Logs Metabolic Index] - Date, time, location, and depth range for MOCNESS tows from R/V Oceanus in the Eastern Tropical Pacific, Tropical Eastern Pacific from 2016-04-17 to 2016-05-02 (Collaborative Research: A metabolic index to predict the consequences of climate change for midwater ecosystems)


[Montagna-783256-Hydrography] - Effects of Hurricane Harvey in San Antonio Bay-Hydrography data, Feb. 2017 - July 2019 (RAPID: Capturing the Signature of Hurricane Harvey on Texas Coastal Lagoons)

The effects of Hurricane Harvey were studied. This dataset includes hydrographic measurements (temperature, salinity, oxygen, pH, refraction) from San Antonio Bay, northwest Gulf of Mexico estuaries along the Texas coast. They were taken during eleven quarterly sampling trips on a small boat, Feb. 2017 - July 2019.

cdm_data_type = Other
VARIABLES:
Sta (unitless)
latitude (degrees_north)
longitude (degrees_east)
date_local (unitless)
time_local (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
REFRACT (brix)
depth (m)
TEMP (Temperature, degrees Celsius)
SAL (Practical Salinity Units)
DOPCT (unitless)
DO (milligrams/Liter)
PH (Sea Water Ph Reported On Total Scale, pH units)
SECCHI (meters)
Z (unitless)


[Mumford Cove Monitoring Data] - Temperature, pH, DO, and salinity data from Mumford Cove, Connecticut, USA from 2015-2025 (Collaborative research: Understanding the effects of acidification and hypoxia within and across generations in a coastal marine fish)

Despite their importance for research and environmental protection, there's still a shortage of high quality and high-resolution temperature, pH, and oxygen data particularly in shallow coastal habitats. We monitor five important environmental parameters (i.e., depth, temperature, salinity, pH, and dissolved oxygen) at 30 minute intervals in Mumford Cove, CT (41 degrees 19'25"N, 72 degrees 01'07"W), a small (2 km N-S × 0.5 km E-W), shallow (1-5 meters), cone-shaped embayment opening to northeastern Long Island Sound, with protected marsh habitat along its western side, marsh and beach habitat along its eastern side, and an extensive seagrass (Zostera marina) cover. Continuous monitoring is achieved by swapping identical and recalibrated probes (Eureka Manta Sub2) every 3-5 weeks.

cdm_data_type = Other
VARIABLES:
location (unitless)
latitude (degrees_north)
longitude (degrees_east)
serial_number (unitless)
ISO_DateTime_EST (unitless)
temp (degrees Celsius)
pH (pH units)
pH_Flag (unitless)
cond (microsiemens per centimeter (µS/cm))
HDO_mgl (milligrams per liter (mg/L))
HDO_percentSat (percent)
salinity (PSS)
salinity_flag (unitless)
depth (m)
comments (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)


[MUSiCC OC1504A - Bacteria Virus and Chlorophyll Containing Cell Abundance] - Abundance of bacteria viruses and chlorophyll containing cells collected from the R/V Oceanus OC1504A in the Oregon/California Coastal Upwelling Zone, between 34-44N and 120-124W during 2015 (Linking physiological and molecular aspects of diatom silicification in field populations)

Abundance of bacteria viruses and chlorophyll containing cells collected from the R/V Oceanus OC1504A in the Oregon/California Coastal Upwelling Zone, between 34-44N and 120-124W during 2015

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
station (unitless)
cast (unitless)
latitude (degrees_north)
longitude (degrees_east)
date_local (unitless)
time_local (unitless)
date_utc (unitless)
time_utc (unitless)
depth (m)
bacteria (bacteria per milliliter)
virus (VLP per milliliter)
chl_total (cells per milliliter)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[MUSiCC OC1504A - Nutrients, CTD, and silicon biogeochemical data] - Nutrients, pigments, silicate and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean from 2015-04-19 to 2015-05-06 (Linking physiological and molecular aspects of diatom silicification in field populations)

These data include nutrient, pigment, silica and experimental data collected aboard the OCEANUS during cruise OC1504A in the North Pacific Ocean along the California Coast from 2015-04-19 to 2015-05-06. The water samples were collected by CTDs. Silica production rates were characterized by delivering incremental increases in silicic acid (Si) along with a radioactive isotope of silicon (32Si). This is an extremely sensitive assay and can determine the maximum production rates of the community being studied and the degree that its growth is being limited by lack of Si. These data were collected by Mark Brzezinski from the University of California at Santa Barbara as part of Linking Physiological and Molecular Aspects of Diatom Silicification.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
brief_desc (unitless)
event (unitless)
station (unitless)
date_utc (unitless)
time_utc (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_w (Depth, meters)
cast (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
sample_no (unitless)
bottle_rosette (unitless)
PAR_percent (percent)
bottle_pooled (unitless)
depth_target (Depth, meters)
PO4 (Mass Concentration Of Phosphate In Sea Water, micromoles per liter)
NO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micromoles per liter)
chl_total (micrograms per liter)
... (12 more variables)


[MUSiCC OC1504A - Photosynthesis data] - Photosynthetic data collected from the R/V Oceanus OC1504A in the Oregon/California Coastal Upwelling Zone, between 34-44N and 120-124W in 2015. (Linking physiological and molecular aspects of diatom silicification in field populations)

Photosynthetic data collected from the R/V Oceanus OC1504A in the Oregon/California Coastal Upwelling Zone, between 34-44N and 120-124W in 2015.

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
CTD (unitless)
date_local (unitless)
depth (m)
time_local (unitless)
Fluor_min (relative units)
Fluor_max (relative units)
FvFm (FV FM, dimensionless)
functional_absorption (unitless)
connectivity_p (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[Mussel Larvae Vertical Distribution] - Depth distribution of mussel larvae in eastern Gulf of Maine from R/V C-Hawk day cruises in the Eastern Gulf of Maine from 2012 to 2014 (Intertidal community assembly and dynamics: Integrating broad-scale regional variation in environmental forcing and benthic-pelagic coupling)

Depth distribution of mussel larvae in eastern Gulf of Maine from R/V C-Hawk day cruises in the Eastern Gulf of Maine from 2012 to 2014

cdm_data_type = Other
VARIABLES:
Sample_Date (unitless)
Site_name (unitless)
latitude (degrees_north)
longitude (degrees_east)
Start_time (unitless)
End_time (unitless)
Tidal_Phase (unitless)
depth (m)
num_Mytilus_sp (per individual)
percent_of_Water_column_total (percent)
Start_DateTime_UTC (Start Date Time UTC, unitless)
time (End Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[MV1008 event log] - Scientific sampling event log from R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project) (Costa Rica Dome FLUx and Zinc Experiments)

Log of scientific sampling events from R/V Melville cruise MV1008.

cdm_data_type = Other
VARIABLES:
event (integer)
cycle (text)
date_local (unitless)
time_local (unitless)
latitude (degrees_north)
longitude (degrees_east)
instr (text)
event_descrip (text)
date_utc (unitless)
time_utc (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
comments (text)


[MV1008 Nav] - Control point navigation from Rolling Deck to Repository (R2R) from R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project) (Costa Rica Dome FLUx and Zinc Experiments)

Control point navigation from Rolling Deck to Repository (R2R) for R/V
Melville cruise MV1008.

cdm_data_type = Other
VARIABLES:
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
month_utc (2-digit month (01 to 12))
day_utc (2-digit day of month (01 to 31))
year (unitless)
time_utc (HHMM.xx)
latitude (degrees_north)
longitude (degrees_east)


[MV1110 CTD Nutrient and Particle Data] - CTD bottle data matched to dissolved, inorganic nutrient concentrations and to stable isotope measurements of particulate nitrogen and carbon rom R/V Melville cruise MV1110 in the Western Tropical North Atlantic in 2011 (Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses)

CTD bottle data matched to dissolved, inorganic nutrient concentrations and to stable isotope measurements of particulate nitrogen and carbon.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Anaconda_Num (unitless)
Niskin_Bottle (unitless)
CTD_Cast (unitless)
Station (unitless)
StnEvent (unitless)
longitude (degrees_east)
Latitude (degrees_north)
Yearday (unitless)
Date (unitless)
Month (unitless)
Day (unitless)
Year (unitless)
time_gmt (Time, unitless)
Hour (unitless)
Minute (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
prDM (decibars (db))
Average_prDM (decibars (db))
depSM (m)
Average_depSM (m)
t190C (degrees C, Celsius)
Average_t190C (degrees C, Celsius)
Potential_Temperature (degrees C, Celsius)
Average_Potential_Temperature (degrees C, Celsius)
sal00 (Practical Salinity Units (PSU))
... (24 more variables)


[MV1110 Underway Nutrient and Particle Data] - Underway nutrient and particle data from R/V Melville cruise MV1110 in the Western Tropical North Atlantic in 2011 (Amazon iNfluence on the Atlantic: CarbOn export from Nitrogen fixation by DiAtom Symbioses)

Dissolved, inorganic nutrient concentrations and stable isotope measurements of particulate nitrogen and carbon collected from the ship's Underway system while transiting between stations.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Underway_StnEvent (unitless)
Date (unitless)
time_gmt (Time, unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Longitude (degrees_north)
longitude (Latitude, degrees_east)
SST (degrees C (Celsius))
SSS (Practical Salinity Units (PSU))
Mean_PO4 (micromolar (uM))
Mean_Si (micromolar (uM))
Mean_NO3_NO2 (micromolar (uM))
Mean_N (unknown)
d15N (permil (0/00))
d13C (permil (0/00))
C_to_N (unitless)
Total_Particulate_N (micromolar (uM))
Total_Particulate_C (micromolar (uM))


[Mysid movies - Damariscotta Estuary - Summer 2023] - Movies of mysid aggregations in Damariscotta Estuary, Maine obtained during the summer of 2023 (Collaborative Research: Characterizing benthic mysid ecology and animal-fluid interactions in response to background flow, food, and light conditions)

Mysid shrimp are a group of zooplankton that are distributed in diverse aquatic environments – freshwater, marine and estuarine – in both shallow and deep waters throughout the world. Due to their ubiquitous presence, mysids form a critical link in marine food webs; however, much remains unknown about their ecology and interactions with their local surroundings. This study aims to conduct a comprehensive investigation of mysid behavior in their natural environment, including their interactions and distribution under varying local flow, food and light conditions. The survey will involve developing and deploying a novel in situ imaging system to study mysids in coastal Maine over the span of two summers.

This dataset contains raw movies of mysid aggregations obtained during summer 2023.

cdm_data_type = Other
VARIABLES:
Date_Local (unitless)
Start_Time_Local (unitless)
End_Time_Local (unitless)
Location (decimal degrees)
latitude (degrees_north)
longitude (degrees_east)
Primary_Folder (unitless)
Primary_Movie (unitless)
Secondary_Folder (unitless)
Secondary_Movie (unitless)
Camera_FPS (unitless)
Strobe_Light_Color (unitless)
Image_Numbers (unitless)
Camera_Orientation (unitless)
time (Start_datetime_utc, seconds since 1970-01-01T00:00:00Z)
End_DateTime_UTC (seconds since 1970-01-01T00:00:00Z)
Image_Storage_GB (Gigabytes (GB))
Video_Storage_GB (Gigabytes (GB))


[N2O isotopes in the Southern Benguela Upwelling System, February 2017] - Nutrient, CTD Profile, and Nitrous oxide data from the Southern Benguela Upwelling System (Integrated Environmental Programme, February 2017) (Collaborative Research: Exploring the dynamics of nitrous oxide in the Southern Benguela Upwelling System)

This dataset includes the CTD profile data, nutrients, and N2O concentration and isotope data for the 2017 IEP (Integrated Ecosystem Programme) off the west coast of South Africa in the Southern Benguela Upwelling system, on board the R/V Mirabilis. Data were collected using the following instruments: a rosette equipped with Sea-Bird SBE 911 CTD and oxygen (Sea-Bird SBD 43) sensors and 12 6-liter Niskin bottles, a Lachat QuickChem® flow injection auto-analysis (FIA) platform, a Turner Designs Trilogy fluorometer equipped with a UV module, and a Gas Chromatography (GC)-IRMS analyser. Low oxygen zones are hotspots for N2O production. We assessed the mechanisms of N2O production using isotope data in the Southern Benguela Upwelling System. Measurements took place in the Marine Biogeochemistry Lab at the University of Cape Town and the Bourbonnais Lab at the University of South Carolina.

cdm_data_type = Other
VARIABLES:
Cruise_ID (unitless)
Station_ID (unitless)
time (Iso_datetime_gmt, seconds since 1970-01-01T00:00:00Z)
Date (unitless)
time_unitless (Time, unitless)
latitude (degrees_north)
longitude (degrees_east)
Bottom_depth (meters (m))
Pressure (decibars (db))
depth (m)
Temperature (degrees Celsius)
Salinity (practical salinity units (PSU))
Oxygen_mL_L (milliliters per liter (mL/L))
Oxygen_umol_kg (micromole per kg)
Nitrate (micromolar (uM))
Nitrite (micromolar (uM))
Phosphate (micromolar (uM))
Silicate (micromolar (uM))
... (7 more variables)


[Narragansett Bay RWU Time-series] - Water characteristics measured in Narragansett Bay over two years, from March 2021 to September 2023 (Collaborative research: Characterization of Synechococcus-cyanophage interactions across phylogenetic and temporal scales)

This dataset includes basic water characteristics measured in Narragansett Bay (Rhode Island, USA) over two years as part of a study of the dynamics of marine cyanobacteria (Synechococcus) and viruses infecting cyanobacteria (cyanophage) in this estuarine ecosystem. The project principal investigators include Nathan Ahlgren (Clark University) and Marcie Marston (Roger Williams University), and the latter collected the data and water with the assistance of students and/or technicians. Water was sampled and measured once per week for a span of two and a half years. Water was sampled from a dock located on the campus of Roger Williams University (RWU) at an approximate latitude and longitude coordinates of 41.649737, -71.256378. Water was collected on an incoming tide in the morning and the following parameters were measured: water temperature, salinity, in situ chlorophyll a, nitrate + nitrite, phosphate, and silicate. Water samples were collected and preserved for measurement of Synechococcus abundance by flow cytometry at a later date.

cdm_data_type = Other
VARIABLES:
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
WaterTemp (degrees Celsius)
AirTemp (degrees Fahrenheit)
Salinity (Practical salinity units (PSU))
ChlA (micrograms per liter (ug/L))
NO2NO3 (micromolar (uM))
PO4 (micromolar (uM))
SiO4 (micromolar (uM))
NH4 (micromolar (uM))
NO2 (micromolar (uM))
NH4_flag (unitless)
NO3NO2_flag (unitless)
latitude (degrees_north)
longitude (degrees_east)


[NBP1201 CTD Profiles] - CTD profile casts collected on the RVIB Nathaniel B. Palmer cruise NBP1201 in the Ross Sea from December 2011 to February 2012 (Processes Regulating Iron Supply at the Mesoscale - Ross Sea)

This dataset of CTD profile casts was collected on the RVIB Nathaniel B. Palmer, cruise ID NBP1201, in the Antarctic. The cruise took place from December 24, 2011 to February 10, 2012, and was conducted as part of the PRISM-RC project, "Processes Regulating Iron Supply at the Mesoscale - Ross Sea".

cdm_data_type = Other
VARIABLES:
cruise_id (unitless)
station (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
year (unitless)
month (unitless)
day (unitless)
hour (unitless)
minute (unitless)
second (unitless)
latitude (degrees_north)
longitude (degrees_east)
timeS (seconds)
prDM (decibars (db))
t090C (degrees Celsius)
t190C (degrees Celsius)
c0S_m (siemens per meter (S/m))
c1S_m (siemens per meter (S/m))
flECO_AFL (milligrams per cubic meter (mg/m^3))
xmiss (unitless (percent))
altM (meters (m))
par (microEinsteins per square meter per second (uE/m^2/s))
cpar (unitless (percent))
spar (microEinsteins per square meter per second (uE/m^2/s))
sbeox0V (volts (V))
... (12 more variables)


[NBP1608 Station Nutrients] - Dissolved macronutrient concentrations from depth profiles from RVIB Nathaniel B. Palmer cruise NBP1608 in the Southern Ocean from September to October 2016 (Collaborative Research: Investigating Iron-binding Ligands in Southern Ocean Diatom Communities: The Role of Diatom-Bacteria Associations)

Dissolved macronutrient concentrations from depth profiles from RVIB Nathaniel B. Palmer cruise NBP1608 in the Southern Ocean from September to October 2016.

cdm_data_type = Other
VARIABLES:
EVTNBR (unitless)
DATE (unitless)
GMT (unitless)
time (ISO Date Time GMT, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
PLATFORM (unitless)
CASTNBR (unitless)
STNNBR (unitless)
BTLNBR (unitless)
depth (m)
NO3_NO2 (micromoles per liter (uM))
NO3_NO2_STDEV (micromoles per liter (uM))
NO3_NO2_pcnt_RSD (unitless (percent))
NO3_NO2_INSTR (unitless)
PO4 (micromoles per liter (uM))
PO4_STDEV (micromoles per liter (uM))
PO4_pcnt_RSD (unitless (percent))
PO4_INSTR (unitless)
SiO4 (Si O4, micromoles per liter (uM))
SiO4_STDEV (Si O4 STDEV, micromoles per liter (uM))
SiO4_pcnt_RSD (Si O4 Pcnt RSD, unitless (percent))
SiO4_INSTR (Si O4 INSTR, unitless)
NO2 (micromoles per liter (uM))
NO2_STDEV (micromoles per liter (uM))
NO2_pcnt_RSD (unitless (percent))
... (5 more variables)


[NBP1608 Underway Nutrients] - Underway dissolved macronutrient concentrations collected on RVIB Nathaniel B. Palmer cruise NBP 16-08 from September to October 2016 (Collaborative Research: Investigating Iron-binding Ligands in Southern Ocean Diatom Communities: The Role of Diatom-Bacteria Associations)

Underway dissolved macronutrient concentrations collected on RVIB Nathaniel B. Palmer cruise NBP 16-08 from September to October 2016.

cdm_data_type = Other
VARIABLES:
EVTNBR (unitless)
DATE (unitless)
GMT (unitless)
time (ISO Date Time GMT, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
depth (m)
SAMPLE_ID (unitless)
NO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micromoles per liter (uM))
NO3_NO2_STDEV (micromoles per liter (uM))
NO3_NO2_pcnt_RSD (unitless (percent))
NO3_NO2_INSTR (Mole Concentration Of Nitrate In Sea Water, unitless)
PO4 (micromoles per liter (uM))
PO4_STDEV (micromoles per liter (uM))
PO4_pcnt_RSD (unitless (percent))
PO4_INSTR (unitless)
SiO4 (Si O4, micromoles per liter (uM))
SiO4_STDEV (Si O4 STDEV, micromoles per liter (uM))
SiO4_pcnt_RSD (Si O4 Pcnt RSD, unitless (percent))
SiO4_INSTR (Si O4 INSTR, unitless)
NO2 (micromoles per liter (uM))
NO2_STDEV (micromoles per liter (uM))
NO2_pcnt_RSD (unitless (percent))
NO2_INSTR (unitless)
NH4 (micromoles per liter (uM))
NH4_STDEV (micromoles per liter (uM))
NH4_pcnt_RSD (unitless (percent))
NH4_INSTR (unitless)


[NBP1702 Dissolved Th and Pa] - Depth profiles of seawater dissolved 232Th, 230Th, and 231Pa from RVIB Nathaniel B. Palmer cruise NBP1702 from January to March 2017 (Water Mass Structure and Bottom Water Formation in the Ice-age Southern Ocean)

This dataset contains depth profiles of seawater dissolved 232Th, 230Th, and 231Pa from cruise NBP1702 (GEOTRACES-compliant).

cdm_data_type = Other
VARIABLES:
Station_ID (unitless)
Start_Date_UTC (unitless)
Start_Time_UTC (unitless)
time (Start ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
End_Date_UTC (unitless)
End_Time_UTC (unitless)
End_ISO_DateTime_UTC (End ISO Date Time UTC, unitless)
latitude (degrees_north)
longitude (degrees_east)
End_Latitude (Latitude, degrees North)
End_Longitude (Longitude, degrees East)
Event_ID (unitless)
Sample_ID (unitless)
depth (Sample Depth, m)
Th_230_D_CONC_BOTTLE_xucmu6 (uBq/kg)
SD1_Th_230_D_CONC_BOTTLE_xucmu6 (uBq/kg)
Flag_Th_230_D_CONC_BOTTLE_xucmu6 (None)
Th_232_D_CONC_BOTTLE_bwiimj (pmol/kg)
SD1_Th_232_D_CONC_BOTTLE_bwiimj (pmol/kg)
Flag_Th_232_D_CONC_BOTTLE_bwiimj (None)
Pa_231_D_CONC_BOTTLE_yq8ckw (uBq/kg)
SD1_Pa_231_D_CONC_BOTTLE_yq8ckw (uBq/kg)
Flag_Pa_231_D_CONC_BOTTLE_yq8ckw (None)
Th_230_D_XS_CONC_BOTTLE (uBq/kg)
Th_230_D_XS_CONC_BOTTLE_ERR (uBq/kg)
Th_230_D_XS_CONC_BOTTLE_FLAG (none)
Pa_231_D_XS_CONC_BOTTLE (uBq/kg)
Pa_231_D_XS_CONC_BOTTLE_ERR (uBq/kg)
Pa_231_D_XS_CONC_BOTTLE_FLAG (none)


[NCP on AR29, RB1904 and TN368] - Continuous rates of net community production and the O2/Ar data on the US Northeastern Shelf in the SPIROPA project during spring and summer 2018 and 2019. (Collaborative Research:  Shelfbreak Frontal Dynamics: Mechanisms of Upwelling, Net Community Production, and Ecological Implications)

An at-sea equilibrator inlet mass spectrometer was used onboard  three cruises in 2018 and 2019 in the Northeastern US Shelf as part of the SPIROPA project in order to measure ratios of O2/Ar in the underway water. The gas ratios were used to calculate rates of net community production at kilometer scale resolution. This dataset thus contains the gas ratios as well as the calculated rates. The data was collected on the R/V Armstrong from 4/16/18 to 4/29/18, on the NOAA ship Ron Brown from 5/12/2019 to 5/25/2019 and on the R/V Thompson from 7/5/2019 to 7/17/2019.  This high spatial resolution data enables us to see submesoscale variability in rates of net community production and to assess whether changes in rates of NCP are co-located with physical processes. This dataset also contains necessary metadata such as location and time as well as useful data from shipboard CTD sensors such as temperature and salinity. Gas transfer rates are required to calculate rates of NCP from gas tracer data. The data includes the gas transfer rates that were used in the calculations, which were determined from NCEP reanalysis winds, a 60 day weighting scheme, and the gas exchange parameterization of Stanley et al., 2009. NCP was calculated based on mass balance with typical assumptions of steady state and negligible vertical and horizontal mixing.  Details on how NCP rates were calculated from the O2/Ar data are available in Stanley et al. (in press at L&O) and Castillo Cieza et al (2024).

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
time (seconds since 1970-01-01T00:00:00Z)
O2_Ar_corrected (unitless)
Temperature (degrees Celsius (°C))
Salinity (PSU)
latitude (degrees_north)
longitude (degrees_east)
Cum_Distance (Kilometer (km))
biosat (percentage (%))
NCP (mmol O2 /m2/day)
gas_transfer_velocity (k (m/d))


[Neocalanus Multinet] - Neocalanus distribution, mean length, mean weight, abundance and biomass from the Gulf of Alaska , Fall 2015, 2016 and 2017 (Collaborative Proposal: Optimizing Recruitment of Neocalanus copepods through Strategic Timing of Reproduction and Growth in the Gulf of Alaska)

Neocalanus distribution, mean length, mean weight, abundance and biomass from the Gulf of Alaska, Fall 2015, 2016 and 2017

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
time (Datetime, seconds since 1970-01-01T00:00:00Z)
Station (unitless)
Latitude (degrees_north)
longitude (degrees_east)
NetNo (unitless)
MaximumDepth (m)
MinimumDepth (m)
APHIAID (unitless)
ScientificName (unitless)
LifeStage (unitless)
Abundance ((#/m3))
MeanLength ((um))
MeanDryWeight ((ug))
Biomass ((mgDW/m3))
Comment (units)


[Net tow data] - IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015 (Pilot Study:  Addition of Biological Sampling to Drake Passage Transits of the "L.M. Gould")

IKMT samples and underwater video recordings collected in the Drake Passage from R/V Laurence M. Gould (LMG1504, LMG1509, LMG1410) from 2014-2015

cdm_data_type = Other
VARIABLES:
station (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
date (unitless)
start_GMT (unitless)
end_GMT (unitless)
lat_deg (Latitude, degrees minutes)
lat_min (Latitude, degrees minutes)
latitude (degrees_north)
lon_deg (Longitude, degrees minutes)
lon_min (Longitude, degrees minutes)
longitude (degrees_east)
biogeographic_zone (unitless)
DIEL (unitless)
volume_filtered (meters cubed)
SST (Sea Surface Temperature, celsius)
bottom_depth (meters)
wind_speed (knots)
wind_direction (Wind From Direction, degrees)
depth (Tow Depth, m)
underwater_video (unitless)
notes (unitless)


[Niskin 2016] - Environmental data from Niskin bottle sampling during the Fall 2016 ESP deployment in Monterey Bay, CA (Bacterial Taxa that Control Sulfur Flux from the Ocean to the Atmosphere)

Environmental data from Niskin bottle sampling during the Fall 2016 ESP deployment in Monterey Bay, CA. Samples were taken using Niskin bottles that collected seawater at the same depth and location of the Environmental Sample Processor deployed at Station M0 (36.835 N, 121.901W).

cdm_data_type = Other
VARIABLES:
Date (unitless)
Time_Pacific (unitless)
ISO_DateTime_Local (ISO Date Time Local, unitless)
depth (m)
Chlorophyll_a (Concentration Of Chlorophyll In Sea Water, micrograms per liter (ug/L))
DMSPd_in_situ (nanomolar (nM))
DMSPd_lab (nanomolar (nM))
DMSPt (nanomolar (nM))
picophotosynthetic_eukaryotes (cells per milliliter (cells/mL))
nanophotosynthetic_eukaryotes (cells per milliliter (cells/mL))
microphotosynthetic_eukaryotes_group_1 (cells per milliliter (cells/mL))
microphotosynthetic_eukaryotes_group_2 (cells per milliliter (cells/mL))
DMSPd_consumption_rate (nM/d)
lt_5_um_DMSPd (nanomolar (nM))
Photosynthetic_eukaryotes (cells per milliliter (cells/mL))
Heterotrophic_bacteria (cells per milliliter (cells/mL))
Synechococcus (cells per milliliter (cells/mL))
Akashiwo (cells per milliliter (cells/mL))
Chlorophyll_a_stdev (Concentration Of Chlorophyll In Sea Water, micrograms per liter (ug/L))
DMSPd_in_situ_stdev (nanomolar (nM))
DMSPd_lab_stdev (nanomolar (nM))
DMSPt_stdev (nanomolar (nM))
picophotosynthetic_eukaryotes_stdev (cells per milliliter (cells/mL))
nanophotosynthetic_eukaryotes_stdev (cells per milliliter (cells/mL))
microphotosynthetic_eukaryotes_group_1_stdev (cells per milliliter (cells/mL))
... (6 more variables)


[Niskin bottle samples] - Niskin bottle water samples and CTD measurements at water sample depths collected at Bermuda Atlantic Time-Series sites in the Sargasso Sea ongoing from 1988 (Bermuda Atlantic Time-series Study)

Niskin bottle samples. CTD measurements at water sample depths and Niskin bottle water samples from the Bermuda Atlantic Time-series Study (BATS) and from Station S, located 25 km SE of Bermuda (32°10N, 64°30W) Measurements have been collected since 1988 and include nutrients, biogeochemical concentration, bacterial enumeration, and cyanobacteria..

cdm_data_type = Point
VARIABLES:
cruise_type (unitless)
cruise_type_text (unitless)
cruise_number (unitless)
cast_number (unitless)
decy (year)
time (ISO Datetime, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
filename (unitless)
Id (unitless)
depth (m)
niskin_number (unitless)
p1 (nanograms per kilogram)
p2 (nanograms per kilogram)
p3 (nanograms per kilogram)
p4 (nanograms per kilogram)
p5 (nanograms per kilogram)
p6 (nanograms per kilogram)
p7 (nanograms per kilogram)
p8 (nanograms per kilogram)
p9 (nanograms per kilogram)
p10 (nanograms per kilogram)
p11 (nanograms per kilogram)
p12 (nanograms per kilogram)
... (41 more variables)


[Niskin bottle samples] - Niskin bottle water samples and CTD measurements from the Hawaii Ocean Time-Series cruises from 1988-2019 (HOT project) ([Current] Hawaii Ocean Time-series (HOT): 2018-2023;  [Previous] Hawaii Ocean Time-series (HOT): Sustaining ocean ecosystem and climate observations in the North Pacific Subtropical Gyre)

Monthly measurements of the thermohaline structure, water column chemistry, and primary production were collected at station ALOHA as part of the HOT program.

cdm_data_type = Other
VARIABLES:
cruise_name (unitless)
EXPOCODE (unitless)
Ship (unitless)
STNNBR (unitless)
CASTNO (unitless)
section (unitless)
time (ISO Date Time, seconds since 1970-01-01T00:00:00Z)
Date (unitless)
Year (unitless)
Month (unitless)
Day (unitless)
timeutc (unitless)
timecode (unitless)
longitude (degrees_east)
latitude (degrees_north)
nav_code (unitless)
depth_max (Depth, meters (m))
pres_max (decibars (db))
depth_hgt (Depth, meters (m))
parameters (unitless)
comments (unitless)
HOT_summary_file_name (unitless)
ROSETTE (unitless)
CTDPRS (decibars)
A_CAR (nanograms per liter (ng/L))
ALKALIN (microeq/kilogram (ueq/kg))
... (78 more variables)


[Niskin bottle samples] - Time-series Niskin-bottle sample data from R/V Hermano Gines cruises in the Cariaco Basin from 1995 through 2017 (CARIACO Ocean Time-Series Program)

The CARIACO Ocean Time-Series Program (formerly known as CArbon Retention In A Colored Ocean) started on November 1995 (CAR-001) and ended on January 2017 (CAR-232). Monthly cruises were conducted to the CARIACO station (10.50\u00b0 N, 64.67\u00b0 W) onboard the R/V Hermano Gin\u00e9s of the Fundaci\u00f3n La Salle de Ciencias Naturales de Venezuela. During each cruise, a minimum of four hydrocasts were performed to collect a suite of core monthly observations. We conducted separate shallow and deep casts to obtain a better vertical resolution of in-situ Niskin-bottles samples for chemical observations, and for productivity, phytoplankton, and pigment observations.

cdm_data_type = Other
VARIABLES:
Cruise_number (integer (nnn))
Cruise_ID_1 (alphanumeric)
Cruise_ID_2 (alphanumeric)
Leg (integer (n))
Day (unitless)
Month (unitless)
Year (unitless)
latitude (degrees_north)
longitude (degrees_east)
Hydro_cast_no (integer (n))
Depth_target (Depth, meters (m))
depth (m)
O2_ml_L (milliliters/liter (ml/L))
q_O2_ml_L (dimensionless)
O2_umol_kg (micromoles/kilogram (μmol/kg))
q_O2_umol_kg (dimensionless)
NO3_UDO (Mole Concentration Of Nitrate In Sea Water, micromolar (μM))
q_NO3_UDO (dimensionless)
PO4_UDO (Mass Concentration Of Phosphate In Sea Water, micromolar (μM))
q_PO4_UDO (dimensionless)
SiO4_UDO (Si O4 UDO, micromolar (μM))
... (75 more variables)


[Nitrate 15N/14N measurements in two adjacent mesoscale eddies in the North Pacific Subtropical Gyre] - Nitrate 15N/14N measurements in two adjacent mesoscale eddies in the North Pacific Subtropical Gyre from water samples collected on R/V Kilo Moana cruise KM1709 in June-July 2017 (CAREER: The biological nitrogen isotope systematics of ammonium consumption and production)

Two adjacent mesoscale eddies of opposite polarity were surveyed during the MESO-SCOPE (Microbial Ecology of the Surface Ocean-Simons Collaboration on Ocean Processes and Ecology) expedition in June – July of 2017 aboard R/V Kilo Moana (cruise ID KM1709). The expedition aimed to understand the impact of mesoscale eddies on the ecosystem of the North Pacific Subtropical Gyre. Hydrographic water samples collected during the cruise were measured for nitrate 15N/14N isotope ratios using the denitrifier method. These measurements were performed by Mengyang Zhou at the University of Connecticut.

cdm_data_type = Other
VARIABLES:
ISO_DateTime_Local_HST (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Station (unitless)
depth (m)
Mean_d15NNO3 (‰ vs. air)
Stdev_d15NNO3 (‰ vs. air)


[Nitrogen isotope fractionation for ammonium assimilation by marine phytoplankton] - Nitrogen isotope fractionation for ammonium assimilation by marine phytoplankton (Biological Nitrogen Isotope Fractionation project) (CAREER: The biological nitrogen isotope systematics of ammonium consumption and production)

Results of batch cultures and short-term ammonium (NH4+) uptake experiments were conducted using marine phytoplankton to verify concentration dependence of nitrogen (N) isotope fractionation for NH4+ assimilation.

cdm_data_type = Other
VARIABLES:
Strain (unitless)
Experiment_type (unitless)
Experiment_number (unitless)
Date_and_time_EST (unitless)
time (Date_and_time_utc, seconds since 1970-01-01T00:00:00Z)
Incubation_time_in_days (days)
Cell_density (cells mL-1)
Initial_cell_density (cells mL-1)
NH4_plus (umol L-1)
stdev_sigma_NH4_plus (unitless)
negative_natural_logarithm_of_NH4_plus (unitless)
delta_15NNH4_plus (‰ vs. air)
stdev_sigma_delta_15NNH4_plus (units)
f_lnf_1_f (units)
delta_15NPON (‰ vs. air)
Light_conditions (unitless)
Growth_stage (unitless)
Notes (unitless)


[Nitrous oxide and transient tracer concentrations in the tropical Pacific Ocean] - Nitrous oxide (N2O) and transient tracer (chlorofluorocarbons, sulfur hexafluoride) concentrations from samples collected on three GO-SHIP cruises in the tropical Pacific Ocean during 2015-2016 (Equatorial transport of nitrous oxide from the eastern tropical Pacific Ocean)

Nitrous oxide (N2O) and transient tracer (chlorofluorocarbons, sulfur hexafluoride) concentrations were determined in water samples collected on three Global Ocean Ship-based Hydrographic Investigations Program (GO-SHIP) cruises to investigate the transport, production, and efflux of N2O across the tropical Pacific Ocean. The three GO-SHIP cruises were 1) P16N in April – May 2015 aboard the R/V Ronald H. Brown, 2) P15S in April – June 2016 aboard the R/V Investigator, and 3) P18 in Nov – Dec 2016 aboard the R/V Ronald H. Brown from rosettes of either 24 or 36 – 10-liter (L) Niskin bottles equipped with Seabird SBE9plus CTDs. Samples for dissolved chlorofluorocarbons (CFC–11, CFC-12), sulfur hexafluoride (SF6), and N2O were collected following the method described in Bullister et al. (2008).

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Station (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Longitude_360 (decimal degrees)
longitude (degrees_east)
latitude (degrees_north)
Bot_Depth (meters (m))
Pressure (decibars (db))
SAMPNO (unitless)
SAMPNO_QF (unitless)
TEMPERATURE (degrees Celsius)
CFC11 (picomoles per kilogram (pmol/kg))
CFC11_QF (unitless)
CFC12 (picomoles per kilogram (pmol/kg))
CFC12_QF (unitless)
SF6 (femptomoles per kilogram (fmol/kg))
SF6_QF (unitless)
CTD_SALINITY (unitless)
CTD_SALINITY_QF (unitless)
N2O (nanomoles per kilogram (nmol/kg))
N2O_QF (unitless)


[NLT time series: 2014-2016 temperature and depth] - Nearshore Larval Transport (NLT) temperature time-series data from nearshore La Jolla, Southern California, 2014-2016 (Nearshore larval transport: physical and biological processes)

This dataset includes temperature and water depth time series data from intertidal, 1, 2, 5, 6, and 8-meter sites located nearshore Calumet Park, La Jolla, Southern California, April 2014 through November 2016.

cdm_data_type = Other
VARIABLES:
sampling_year (unitless)
season (unitless)
site (unitless)
site_name (unitless)
depth (m)
latitude (degrees_north)
longitude (degrees_east)
month (unitless)
year (unitless)
day (unitless)
hour (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
yrday_utc (unitless)
depth_w (Depth, meters)
temp (Temperature, degrees Celsius)


[NO2_NO3] - Nitrite (NO2) and Nitrate (NO3) concentrations from Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project) (Seasonal and decadal changes in temperature drive Prochlorococcus ecotype distribution patterns)

Nitrite (NO2) and Nitrate (NO3) concentrations from Thomas G. Thompson and R/V Kilo Moana cruises TN277, KM1301, KM1312 in the Eastern North Pacific Ocean from 2012-2013 (POWOW project)

cdm_data_type = Other
VARIABLES:
cruise_name (text)
cast (unitless)
latitude (degrees_north)
longitude (degrees_east)
depth_w (Depth, meters)
month_utc (mm (01 to 12))
day_utc (dd (01 to 31))
year (unitless)
time_utc (HHMM.mm)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
bot (unitless)
NO2 (Mole Concentration Of Nitrite In Sea Water, micromolar (uM))
NO3 (Mole Concentration Of Nitrate In Sea Water, micromolar (uM))


[Normalized oxygen from MCH incubations] - Normalized oxygen from incubations conducted with methylcyclohexane using samples collected from the Gulf of Mexico during June 2015 on R/V Atlantis cruise AT29-02 (Collaborative Research: Chemical and microbiological studies of water-soluble alkanes in the ocean)

Hydrocarbon incubations were conducted with water collected from 1000 meters depth in the Gulf of Mexico across four stations during cruise AT29-02 on the R/V Atlantis. Sample collection occurred June 16-17, 2015. Each incubation was injected with 10 microliters of methylcyclohexane (MCH) or methylcyclopentane (MCP). Each incubation was monitored for oxygen content using remote optical oxygen sensors. After we observed a respiration signal, we sacrificially harvested each bottle for cell counts, nutrients, and DNA. Incubation time varied from 10-31 days. These data were used to assess who consumes these compounds in the deep Gulf of Mexico, over what time frame, and what metabolic pathways bacteria use to consume them. This dataset includes the normalized oxygen measurements from the MCH incubations.

cdm_data_type = Other
VARIABLES:
Station (unitless)
latitude (Station_latitude, degrees_north)
longitude (Station_longitude, degrees_east)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Replicate (unitless)
Time_hours (hours)
Time_days (days)
Oxygen_loss (micromolar (uM))


[Normalized oxygen from MCP incubations] - Normalized oxygen from incubations conducted with methylcyclopentane using samples collected from the Gulf of Mexico during June 2015 on R/V Atlantis cruise AT29-02 (Collaborative Research: Chemical and microbiological studies of water-soluble alkanes in the ocean)

Hydrocarbon incubations were conducted with water collected from 1000 meters depth in the Gulf of Mexico across four stations during cruise AT29-02 on the R/V Atlantis. Sample collection occurred June 16-17, 2015. Each incubation was injected with 10 microliters of methylcyclohexane (MCH) or methylcyclopentane (MCP). Each incubation was monitored for oxygen content using remote optical oxygen sensors. After we observed a respiration signal, we sacrificially harvested each bottle for cell counts, nutrients, and DNA. Incubation time varied from 10-31 days. These data were used to assess who consumes these compounds in the deep Gulf of Mexico, over what time frame, and what metabolic pathways bacteria use to consume them. This dataset includes the normalized oxygen measurements from the MCP incubations.

cdm_data_type = Other
VARIABLES:
Station (unitless)
latitude (Station_latitude, degrees_north)
longitude (Station_longitude, degrees_east)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Replicate (unitless)
Time_hours (hours)
Time_days (days)
Oxygen_loss (micromolar (uM))


[North Pacific Atmospheric Particulates] - Total organic carbon content, total nitrogen content, and carbon isotope (13C and 14C) composition of atmospheric particulates from aerosol samples collected on the R/V Dong Fang Hong-3 in the western North Pacific from October to December 2019 (Collaborative Research: Characterization of Reactive Nitrogen in The North Pacific Atmosphere)

These data include the content of total organic carbon and total nitrogen, and carbon isotope (13C and 14C) composition of atmospheric particulates collected in the western North Pacific. 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. Sampling was conducted using 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 further understanding of the role of atmospheric deposition in the carbon cycle and biogeochemistry in the ocean. These data assess the contribution of atmospheric deposition to organic carbon and were conducted by Prof. XuChen Wang of the Key Laboratory of Marine Chemistry Theory, Ocean University of China, Qingdao 266100, China.

cdm_data_type = Other
VARIABLES:
Sample_number (unitless)
Date (unitless)
Start_time (unitless)
time (Start_iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Sampling_period (hours (h))
Latitude (degrees_north)
longitude (degrees_east)
Total_air_volume (liters (L))
Particle_weight (milligrams (mg))
Total_particulates_concentration (micrograms per cubic meter (ug/m3))
POC (percent (%))
TN (percent (%))
POC_d13C (per mil (‰))
d14C (per mil (‰))
d14C_stdev (per mil (‰))
Age_14C (Year BP)
Age_14C_stdev (Year BP)


[Nutrient and cell count data for incubations] - Nutrient and cell count data from incubations conducted with methylcyclohexane or methylcyclopentane on samples collected from the Gulf of Mexico during June 2015 on R/V Atlantis cruise AT29-02 (Collaborative Research: Chemical and microbiological studies of water-soluble alkanes in the ocean)

Hydrocarbon incubations were conducted with water collected from 1000 meters depth in the Gulf of Mexico across four stations during cruise AT29-02 on the R/V Atlantis. Sample collection occurred June 16-17, 2015. Each incubation was injected with 10 microliters of methylcyclohexane (MCH) or methylcyclopentane (MCP). Each incubation was monitored for oxygen content using remote optical oxygen sensors. After we observed a respiration signal, we sacrificially harvested each bottle for cell counts, nutrients, and DNA. Incubation time varied from 10-31 days. These data were used to assess who consumes these compounds in the deep Gulf of Mexico, over what time frame, and what metabolic pathways bacteria use to consume them.

cdm_data_type = Other
VARIABLES:
Rank (unitless)
Type (unitless)
Station (unitless)
latitude (Station_latitude, degrees_north)
longitude (Station_longitude, degrees_east)
ISO_DateTime_Local (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Phosphate (micromolar (uM))
Nitrite (micromolar (uM))
Ammonia (micromolar (uM))
Nitrate (micromolar (uM))
Total_Oxygen_Loss (micromolar (uM))
Normalized_Oxygen_Loss (micromolar (uM))
Total_Incubation_Time_Days (days)
Cell_Abundance (cells per milliliter (cells/mL))
Bloom_Onset_Time_Days (days)


[nutrients and metals] - Nutrients, cobalt, dissolved iron, and dissolved manganese from trace metal bottles from R/V Knorr cruise KN192-05 in the South Atlantic subtropical gyre and Benguela upwelling region in 2007 (CoFeMUG project) (Cobalt, Iron and Micro-organisms from the Upwelling zone to the Gyre)

Analysis of nutrients, Cobalt (total and labile), dissolved Iron, and dissolved Manganese of water samples drawn from Trace Metal Rosette (TMR) bottle casts.

cdm_data_type = Other
VARIABLES:
cruise_id (dimensionless)
sta (dimensionless)
latitude (degrees_north)
longitude (degrees_east)
lon_360 (Longitude, decimal degrees)
depth_w (Depth, meters)
depth (m)
ev_code (dimensionless)
run_id (dimensionless)
cast (dimensionless)
date (unitless)
year (unitless)
mon (MM)
day (DD)
time2 (Time, hhmm)
NO3_NO2 (Mole Concentration Of Nitrate In Sea Water, micromolar)
NO3_NO2_flag (dimensionless)
PO4 (Mass Concentration Of Phosphate In Sea Water, micromolar)
PO4_flag (dimensionless)
SiO4 (Si O4, micromolar)
SiO4_flag (Si O4 Flag, dimensionless)
NO2 (Mole Concentration Of Nitrite In Sea Water, micromolar)
NO2_flag (dimensionless)
NH4 (Mole Concentration Of Ammonium In Sea Water, micromolar)
NH4_flag (dimensionless)
Co_tot (picomolar)
... (8 more variables)


[Nutrients and pigments] - Nutrients and pigments from HPLC analysis for fire ash deposition to coastal ocean study, southern California, December 2017 (RAPID:  Biogeochemical effects of fire ash deposition to the coastal ocean, in response to the 2017 Southern California fires)

Nutrients and pigments from HPLC analysis for fire ash deposition to coastal ocean study, southern California, December 2017.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
Station (unitless)
Bottom_Z (meters)
time (Time Stamp, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
CruiseCN (Cruise CN, unitless)
Niskin (unitless)
Target_Z (meters)
Conductivity (Sea Water Electrical Conductivity, S/m)
BeamAt (Beam At, 1/m)
BeamT (Beam T, unitless)
Density00 (kg m3)
depth (Z, m)
Fluorescence (mg m-3)
Oxygen (ml L-1)
Par (Downwelling Photosynthetic Photon Radiance In Sea Water, umol photons m-2 s-1)
Salinity (Sea Water Practical Salinity, psu)
Temperature (degrees C)
Pressure (db)
Neutral_Density (kg m3)
Sigma_Theta (Sea Water Sigma Theta, kg m3)
Potential_Temp (degrees C)
PO4 (Mass Concentration Of Phosphate In Sea Water, umol P L-1)
PO4_QF (Mass Concentration Of Phosphate In Sea Water, unitless)
SiO4 (Si O4, umol Si L-1)
... (36 more variables)


[nutrients] - General nutrient data (averages) from Leggo drop 1 seawater collected by Niskin bottle 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)

General nutrient data (averages) from Leggo drop 1 seawater collected by 3L Niskin bottle.

cdm_data_type = Other
VARIABLES:
drop_name (unitless)
NO3_avg (Mole Concentration Of Nitrate In Sea Water, micromolar)
PO4_avg (Mass Concentration Of Phosphate In Sea Water, micromolar)
silicate_avg (Mass Concentration Of Silicate In Sea Water, micromolar)
NO2_avg (Mole Concentration Of Nitrite In Sea Water, micromolar)
NH4_avg (Mole Concentration Of Ammonium In Sea Water, micromolar)
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)


[Nutrients] - Nutrient data for samples collected every 4 hours from Orcas Island, WA, USA Coastal Ocean (2m depth) during the period from 2021-05-27 to 2021-06-18 (Collaborative Research: Rhythm and Blooms: Deciphering metabolic, functional and taxonomic interactions over the life cycle of a phytoplankton bloom)

This dataset contains nutrient data for samples collected every 4 hours from Orcas Island, WA, USA Coastal Ocean (2m depth) during the period from 5/27/21 to 6/18/21 collected as part of the following study.

Study abstract

Floating, single-celled algae, or phytoplankton, form the base of marine food webs. When phytoplankton have sufficient nutrients to grow quickly and generate dense populations, known as blooms, they influence productivity of the entire food web, including rich coastal fisheries. The present research explores how the environment (nutrients) as well as physical and chemical interactions between individual cells in a phytoplankton community and their associated bacteria act to control the timing of bloom events in a dynamic coastal ecosystem. The work reveals key biomolecules within the base of the food web that can inform food web functioning (including fisheries) and be used in global computational models that forecast the impacts of phytoplankton activities on global carbon cycling. A unique set of samples and data collected in 2021 and 2022 that captured phytoplankton and bacterial communities before, during, and after phytoplankton blooms, is analyzed using genomic methods and the results are used to interrogate these communities for biomolecules associated with blooms stages. The team mentors undergraduates, graduate students, and postdoctoral researchers in the fields of biochemical oceanography, genome sciences, and time-series multivariate statistics. University of Washington organized hackathons to develop publicly accessible portals for the simplified interrogation and visualization of 'omics data, accessible to high schoolers and undergraduates. These portals are implemented in investigator-led undergraduate teaching modules in the University of Rhode Island Ocean Classroom. The research team also returns to Orcas Island, WA, where the field sampling takes place, to host a series of annual Science Weekends to foster scientific engagement with the local community.
Phytoplankton blooms, from initiation to decline, play vital roles in biogeochemical cycling by fueling primary production, influencing nutrient availability, impacting carbon sequestration in aquatic ecosystems, and supporting secondary production.  In addition to influences from environmental conditions, the physical and chemical interactions among planktonic microbes can significantly modulate blooms, influencing the growth, maintenance, and senescence of phytoplankton. Recent work in steady-state open ocean ecosystems has shown that important chemicals are transferred amongst plankton on time-dependent metabolic schedules that are related to diel cycles. It is unknown how these metabolic schedules operate in dynamic coastal environments that experience perturbations, such as phytoplankton blooms. Here, the investigators are examining metabolic scheduling using long-term, diel sample sets to reveal how chemical and biological signals associated with the initiation, maintenance, and cessation of phytoplankton blooms are modulated on both short (hrs) and long (days-weeks) time scales. Findings are advancing the ability to predict and manage phytoplankton dynamics, providing crucial insights into ecological stability and future oceanographic sampling strategies. Additionally, outcomes of this study are providing a new foundational understanding of the succession of microbial communities and their chemical interactions across a range of timescales. In the long term, this research has the potential to identify predictors of the timing of phytoplankton blooms, optimize fisheries management, and guide future research on carbon sequestration.

cdm_data_type = Other
VARIABLES:
Date_PT (unitless)
... (10 more variables)


[O2 and CO2 profiles Pensacola Jun 2024] - Vertical gas concentrations in exposed silicate sand beach on Santa Rosa Island, FL measured on Jun 7th, 2024 (Quantification of sedimentary oxygen and carbon dioxide dynamics in a dry sandy beach affected by macroalgae deposition)

This project addresses carbon conversion processes in sandy beaches. To assess gas concentration gradients between the atmosphere and the beach sediment, vertical gas concentration profiles were measured below the beach sediment surface. Gas (custom probes) and temperature probes (PT100) were placed at 5 cm above the sediment and at 0, -5, -10, -15, -20, -25, -30, -35, -40, -45, -50 cm below the sediment surface. Pore gas was extracted from the sediment using a syringe pump (150 ml max. volume). Gas concentrations were measured with a Pyroscience Firesting O2 oxygenmeter and a Licor840A that recorded CO2 concentration, (ppm) and H2O concentration, (ppt).

cdm_data_type = Other
VARIABLES:
Site (unitless)
latitude (degrees_north)
longitude (degrees_east)
Profile (unitless)
time (seconds since 1970-01-01T00:00:00Z)
depth (m)
Carbon_dioxide (Parts per million (ppm))
Oxygen (Percent air saturation (% air saturation))
Temperature (degrees Celsius)


[OA Microbe Adaptation] - Environmental and physical data associated with ocean acidification microbe adaptation from 2012-2014 (Pivers Island Coastal Observatory)

Environmental and physical data associated with ocean acidification microbe adaptation from 2012-2014

cdm_data_type = Other
VARIABLES:
date (unitless)
time2 (Time, unitless)
depth (m)
bacteriaA (Bacteria A, cells per milliliter)
bacteriaB (Bacteria B, cells per milliliter)
BarometricPressureA (Air Pressure, hectopascals)
BarometricPressureB (Air Pressure, hectopascals)
ChlExtractA (Chl Extract A, milligrams of chlorophyll a per meter cubed)
ChlExtractB (Chl Extract B, milligrams of chlorophyll a per meter cubed)
DICA (uM)
DICB (uM)
DICC (uM)
NH4A (NH4 A, uM)
NH4B (NH4 B, uM)
NH4C (NH4 C, uM)
NO2A (NO2 A, uM)
NO2B (NO2 B, uM)
NO2C (NO2 C, uM)
NO3A (NO3 A, uM)
NO3B (NO3 B, uM)
NO3C (NO3 C, uM)
OxygenA (Oxygen A, uM)
OxygenB (Oxygen B, uM)
OxygenSaturationA (Oxygen Saturation A, milligrams of oxygen per liter)
OxygenSaturationB (Oxygen Saturation B, milligrams of oxygen per liter)
pHT25A (P HT25 A, pH)
... (74 more variables)


[Open cell and single-step titration method comparison] - Open cell and single-step method for total alkalinity titrations from samples collected on R/V Mirai cruises MR23-06C and MR23-07 in the North Pacific and Western Arctic from September to November 2023 (US GEOTRACES GP17-OCE and GP17-ANT: Inorganic Carbon Cycling in the South Pacific and Southern Oceans by Direct Measurement)

Duplicate samples were collected for total alkalinity on two cruises in 2023 aboard the R/V Mirai (MR23-06C and MR23-07) in order to compare two different methods of total alkalinity titrations: the open cell with non-linear least squares fitting and single step with spectrophotometric endpoint detection. Measurements of dissolved inorganic carbon and pH on the total scale were also made as quality control checks. GLODAPv2 hinted at a potential offset between laboratories in the Pacific Ocean. We hypothesized that if non-negligible amounts of organic alkalinity were present, the different methods could be titrating different amounts leading to differences between the methods. The results show that any offset is within the uncertainty of the analytical precision and presence of organic alkalinity in open ocean waters remains inconclusive.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
sample_ID (unitless)
Station (unitless)
Cast (unitless)
NiskinBottle_No (unitless)
Date (unitless)
time_unitless (Time, unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
CTD_Salinity (unitless)
CTD_Salinity_flag (unitless)
Bottle_Salinity (unitless)
Bot_Sal_flag (unitless)
CTD_Pressure (decibars (db))
Total_Alkalinity_Single_Step_method (micromoles per kilogram of seawater (umol/kg_sw))
Total_Alkalinity_Single_Step_Method_flag (unitless)
Final_pHt_for_Single_Step_method_TA (total scale)
Total_Alkalinity_Open_Cell_Method (micromoles per kilogram of seawater (umol/kg_sw))
... (31 more variables)


[Organic Alkalinity Discrete Data] - Organic alkalinity 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)

Four organic alkalinity estuary transects, in May and October of 2018 and 2019, were completed in the Pleasant (Maine, USA) and St. John (New Brunswick, Canada) estuaries.  Discrete samples were collected at intervals of salinity along each estuary.  An underway measurements system was also operated during each transect (see "Related Datasets" section).  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:
ID (unitless)
Collection_Date (unitless)
Collection_Time (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Latitude (degrees_north)
longitude (degrees_east)
Salinity (unitless)
In_Situ_Water_Temperature (degrees Celcius)
pHT (unitless (total scale))
pH_Method (unitless)
pCO2 (microatmospheres)
DOC (micromoles carbon per liter)
T_Alk (micromoles per kilogram)
DIC (micromoles per kilogram)
OrgAlk_from_Endpoint_Titration (micromoles per kilogram)
... (9 more variables)


[Organic polymers and domoic acid] - Organic polymer formation and domoic acid adsorption from experiments conducted using water samples collected in northern Gulf of Mexico in 2018 and 2019 (The biotic and abiotic controls on the Silicon cycle in the northern Gulf of Mexico)

Organic polymer formation and domoic acid adsorption. Results from lab experiments designed to investigate organic polymer formation and domoic acid adsorption.  Water samples were collected in the northern Gulf of Mexico in 2018 and 2019.

cdm_data_type = Other
VARIABLES:
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
Date (unitless)
time2 (Time, unitless)
Experiment (unitless)
Treatment (unitless)
Replicate_bottle (unitless)
Replicate_subsample (unitless)
POC_mass (micrograms (µg))
pDA_OP_mass (P DA OP Mass, nanograms (ng))
POC_tox (parts per million (ppm))
DA_to_C (dimensionless)
POC_conc (micrograms (µg) per liter (L))
pDA_conc (P DA Conc, nanograms (ng) per liter (L))


[orgCN] - Particulate and dissolved organic carbon and nitrogen data from multiple cruises on R/V Wecoma, R/V Atlantis, and R/V New Horizon in the Northeast Pacific from 1997-2004 (GLOBEC NEP) (U.S. GLOBEC Northeast Pacific)

This dataset contains particulate and dissolved organic carbon and nitrogen data from the GLOBEC Northeast Pacific (NEP) Long-Term Observation Program (LTOP) cruises from 1997 to 2004. The nutrient and extracted chlorophyll data that correspond to this dataset can be also be found in the BCO-DMO database.\r\n\r\nFor further hydrographic information from all cruises, see cruise reports provided on the Northeast Pacific Long Term Observation Program website, or contact Dr. A Huyer at Oregon State University, COAS,104 COAS Admin. Bldg., Corvallis, OR, 97331-5503. All particulate and dissolved organic carbon and nitrogen data in this dataset include cruise station numbers to allow comparison with the hydrographic information found in other data reports.

cdm_data_type = Other
VARIABLES:
year (dimensionless)
cruise_id (dimensionless)
station_std (dimensionless)
station (dimensionless)
month_gmt (dimensionless)
day_gmt (dimesionless)
time_gmt (HHMM, 24-hr clock)
latitude (degrees_north)
longitude (degrees_east)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
press (decibars)
temp (Temperature, degrees C)
sal (unknown)
TN (micromolar)
TOC (micromolar)
POC (Particulate Organic Carbon, micromolar)
PON (micromolar)
DOC (micromolar)
DON (micromolar)


[OSNAP Noble Gases 2016] - Noble gas concentrations from water samples collected in August and September 2016 during R/V Neil Armstrong cruise AR7-02 as part of the Overturning in the Subpolar North Atlantic Project (O-SNAP) (Tracking Greenland Melt in the Ocean Using Noble Gas Fingerprints)

This noble gas dataset was collected around Southern Greenland in August and September of 2016 aboard the R/V Neil Armstrong as part of the Overturning in the Subpolar North Atlantic Project (O-SNAP). Parameters include the concentrations of Helium (He), Neon (Ne), Argon (Ar), Krypton (Kr), Xenon (Xe), along with the co-located temperature, salinity, and pressure data from the CTD at the sample collection point. During the cruise, 391 noble gas water samples were collected, of which funding was available for 86 to be analyzed at Woods Hole Oceanographic Institution's Isotope Geochemistry Facility. Those processed samples are archived in this dataset. The 86 analyzed noble gas samples are concentrated along five sections across the shelfbreak on the east and west sides of Cape Farewell in southern Greenland. Noble gas samples were acquired from 10-liter Niskin bottles using gravity feed-through TYGON tubing to fill lengths of 5/8" copper refrigeration tubing (trapping ~45 grams water in replicate pairs), then each was hydraulically crimp sealed.

cdm_data_type = Other
VARIABLES:
station (unitless)
lat (degrees_north)
longitude (degrees_east)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
bottle (unitless)
pressure (decibars (dbar))
temperature (degrees Celsius)
salinity (PSU)
He3_sat_anomaly (percent (%))
Helium_concentration (moles per kilogram (mol/kg))
Neon_concentration (moles per kilogram (mol/kg))
Argon_concentration (moles per kilogram (mol/kg))
Krypton_concentration (moles per kilogram (mol/kg))
Xenon_concentration (moles per kilogram (mol/kg))


[Oxygen Consumption Rates of Iron Oxidizing Bacteria - FeOB] - Laboratory experiment data describing oxygen consumption of two strains of Mariprofundus ferrooxydans at two oxygen concentrations and one temperature (Sedimentary Iron Cycle project) (Collaborative Research: The Role of Iron-oxidizing Bacteria in the Sedimentary Iron Cycle: Ecological, Physiological and Biogeochemical Implications)

Laboratory experiment data describing oxygen consumption of two strains of Mariprofundus ferrooxydans at two oxygen concentrations and one temperature (Sedimentary Iron Cycle project)

cdm_data_type = Other
VARIABLES:
FeOB_strain (Fe OB Strain, unitless)
temp (Temperature, degrees celsius)
O2_conc (micromoles per liter)
treatment (unitless)
date_local (unitless)
time_local (unitless)
O2_consume (micromoles per liter)
yrday_local (decimal day)
time (ISO Date Time Local, seconds since 1970-01-01T00:00:00Z)


[Oxygen consumption rates] - Oxygen consumption rates/zero valent iron dissolution of FeOB with kanamycin addition - replacement samples (Collaborative Research: The Role of Iron-oxidizing Bacteria in the Sedimentary Iron Cycle: Ecological, Physiological and Biogeochemical Implications)

Oxygen consumption rates/zero valent iron dissolution of FeOB with kanamycin addition - replacement samples

cdm_data_type = Other
VARIABLES:
vial (unitless)
date (unitless)
time2 (Time, unitless)
treatment (unitless)
time_elapsed (minutes)
oxygen_concentration (umol/L)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)


[Oyster_Larvae_Length_FidalgoBay_2017] - Olympia oyster larvae length measurements from depth-specific sampling collected by boat in Fidalgo Bay, WA, during July 2017 (RUI: Will climate change cause 'lazy larvae'? Effects of climate stressors on larval behavior and dispersal)

This dataset includes Olympia oyster larvae length measurements from depth-specific sampling collected by boat in Fidalgo Bay, WA, during July 2017.

cdm_data_type = Other
VARIABLES:
time (Date Time UTC, seconds since 1970-01-01T00:00:00Z)
date_local (unitless)
time_local (unitless)
profile (unitless)
sample (unitless)
tide (unitless)
depth_seafloor_m (Depth, meters)
depth_sample_m (Depth, meters)
depth_des (Depth, unitless)
larvae_length_um (micrometers (um ))


[P16 Repeat Hydrography Trace Metal Profiles] - Profiles of dissolved trace elements collected using a trace-metal clean rosette from surface to 1000m depth from two CLIVAR P16 cruises in 2005 and 2006 (Collaborative Research: Global Ocean Survey of Dissolved Iron and Aluminum and Aerosol Iron and Aluminum Solubility Supporting the Repeat Hydrography (CO2) Project)

Profiles of dissolved trace elements collected using a trace-metal clean rosette from surface to 1000m depth from two CLIVAR P16 cruises in 2005 and 2006.

cdm_data_type = Other
VARIABLES:
EXPOCODE (unitless)
STNNBR (unitless)
CASTNO (unitless)
SAMPNO (unitless)
DATE (unitless)
time2 (TIME, unitless)
latitude (degrees_north)
longitude (degrees_east)
CTDPRS (decibars)
CTDPRS_FLAG_W (unitless)
TEMPERATURE (degrees Celsius)
TEMPERATURE_FLAG_W (unitless)
SALNTY (psu)
SALNTY_FLAG_W (unitless)
OXYGEN (micromoles per kilogram (umol/kg))
OXYGEN_FLAG_W (unitless)
PHSPHT (micromoles per kilogram (umol/kg))
PHSPHT_FLAG_W (unitless)
SILCAT (micromoles per kilogram (umol/kg))
SILCAT_FLAG_W (unitless)
NITRAT (micromoles per kilogram (umol/kg))
NITRAT_FLAG_W (unitless)
NITRIT (micromoles per kilogram (umol/kg))
NITRIT_FLAG_W (unitless)
Mn (nanomoles per liter (nmol/L))
Mn_FLAG_W (unitless)
... (15 more variables)


[Pacific Nitrite Oxidoreductase] - Nitrite Oxidoreductase targeted metaproteomics from R/V Kilo Moana cruise KM1128 and R/V Falkor cruise FK160115 in the Central Pacific Ocean in 2011 and 2016 (Connecting Trace Elements and Metalloenzymes Across Marine Biogeochemical Gradients)

Nitrite Oxidoreductase targeted metaproteomics from R/V Kilo Moana cruise KM1128 and R/V Falkor cruise FK160115 in the Central Pacific Ocean in 2011 and 2016. NxrA and NxrB peptide concentrations in fmol/L. Peptide names are using the GEOTRACES naming convention (PEP for peptide, full tryptic peptide amino acid sequence, Protein name, Sampling device (=Pump)). Quality flags follow each peptide column and use the GEOTRACES convention of 1 for good, 6 for below detection limit.  These data were published in Saito et al., 2020 as Supplementary Table 1.

cdm_data_type = Other
VARIABLES:
Expedition (unitless)
Station (unitless)
Long (Longitude, decimal degrees)
longitude (degrees_east)
latitude (degrees_north)
McLane_cast (Mc Lane Cast, unitless)
McLane_time_local (Mc Lane Time Local, unitless)
time (Mc Lane ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
depth (m)
PEP_LANQVALLDSIIR_NxrA_PUMP (PEP LANQVALLDSIIR Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_LANQVALLDSIIR_NxrA_PUMP_FLAG (PEP LANQVALLDSIIR Nxr A PUMP FLAG, unitless)
PEP_GGTLVAVAPEYNPPATK_NxrA_PUMP (PEP GGTLVAVAPEYNPPATK Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_GGTLVAVAPEYNPPATK_NxrA_PUMP_FLAG (PEP GGTLVAVAPEYNPPATK Nxr A PUMP FLAG, unitless)
PEP_MTIQWGK_NxrA_PUMP (PEP MTIQWGK Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_MTIQWGK_NxrA_PUMP_FLAG (PEP MTIQWGK Nxr A PUMP FLAG, unitless)
PEP_LHPDDFIPGYK_NxrA_PUMP (PEP LHPDDFIPGYK Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_LHPDDFIPGYK_NxrA_PUMP_FLAG (PEP LHPDDFIPGYK Nxr A PUMP FLAG, unitless)
PEP_ALIVNTPR_NxrA_PUMP (PEP ALIVNTPR Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_ALIVNTPR_NxrA_PUMP_FLAG (PEP ALIVNTPR Nxr A PUMP FLAG, unitless)
PEP_TQFYNDEPEAIEYGENFIVHR_NxrA_PUMP (PEP TQFYNDEPEAIEYGENFIVHR Nxr A PUMP, femtomoles per liter (fmol/L))
PEP_TQFYNDEPEAIEYGENFIVHR_NxrA_PUMP_FLAG (PEP TQFYNDEPEAIEYGENFIVHR Nxr A PUMP FLAG, unitless)
PEP_GLWEPVR_NxrA_PUMP (PEP GLWEPVR Nxr A PUMP, femtomoles per liter (fmol/L))
... (17 more variables)


[Palau Lake Core Properties] - Core Logger Physical Properties for Palau Lakes Sediment Cores collected from small boats from September to October 2013 (Do Parallel Patterns Arise from Parallel Processes?)

Core Logger Physical Properties for Palau Lakes Sediment Cores collected from small boats from September to October 2013.

cdm_data_type = Other
VARIABLES:
Lake_Name (unitless)
Core (unitless)
latitude (degrees_north)
longitude (degrees_east)
Device (unitless)
time (Date Collected, seconds since 1970-01-01T00:00:00Z)
Logger_depth (meters (m))
LacCore_Section_ID (Lac Core Section ID, unitless)
Section_Depth (centimeters (cm))
MSCL_Sediment_Thickness (centimeters (cm))
MSCL_pWave_Amplitude (MSCL P Wave Amplitude)
MSCL_pWave_Velocity (MSCL P Wave Velocity, meters per second (m s-1))
MSCL_Gamma_Density (grams per cubic centimeter (g cm-3))
MSCL_MS_Loop (SI * 10-5)
MSCL_Impedance (meters per second (m/s) times grams per cubic centimeter (g/cm^3) (or: m g s-1 cm-3))
MSCL_Fractional_Porosity
MSCL_Electrical_Resistivity (Ohm-meters (Ohm*m))
MSCL_Temperature_Logging_Room (degress Celsius)
Original_Section_ID (unitless)


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

PAR data from stable isotope experiments conducted in Massachusetts from 2012.

cdm_data_type = Other
VARIABLES:
date (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
time2 (Time, unitless)
PAR_H2O (PAR H2 O, nmol photons m-2 s-1)
PAR_daytime (nmol photons m-2 s-1)
PAR_lnH2O (PAR Ln H2 O, log)
PAR_lndaytime (log)


[Particle Amino Acid d15N Station ALOHA 2014] - Nitrogen isotopic ratios of individual amino acids extracted from size-fractionated particulate organic matter aboard the R/V Kilo Moana in February (cruise KM1407) and September (cruise KM1418) 2014 at Station ALOHA (Evaluating the relative importance of suspended and sinking particles to the meso and bathypelagic food web in the central North Pacific)

The data include nitrogen isotopic ratios of individual amino acids extracted from size-fractionated particulate organic matter collected between the surface and 1200 m in the water column at Station ALOHA. Particle samples were collected via sequential size fractionation using McLane in-situ pumps on two cruises conducted aboard the R/V Kilo Moana in February (KM1407) and September (KM1418) 2014. Data were collected as part of a project focused on characterizing sources of nutrition for the mesopelagic animal food web, for which particulate organic matter was a crucial baseline resource. In addition, differences in the nitrogen isotopic ratios of individual amino acids from particle size fractions and over depth provide insight into phytoplankton origins and microbial or zooplankton alteration of particulate matter involved in carbon export. Compound-specific isotopic data and amino acid quantities were collected using gas chromatography-isotope ratio mass spectrometry, and bulk isotopic data and quantities were collected using elemental analysis-isotope ratio mass spectrometry, both at University of Hawaii. Dr. Hilary Close (former affiliation: University of Hawaii, current affiliation: University of Miami) was the primary investigator involved in sampling and analysis of data presented here.

cdm_data_type = Other
VARIABLES:
Cruise (unitless)
latitude (degrees_north)
longitude (degrees_east)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
ISO_DateTime_UTC_rep (seconds since 1970-01-01T00:00:00Z)
Date_local (unitless)
Time_local (unitless)
depth (m)
Size_Fraction_Min (micrometers (um))
Size_Fraction_Max (micrometers (um))
Volume_Filtered_AAd15N (liters (L))
d15N_Bulk (permil relative to AIR (‰))
d15N_Ala (permil relative to AIR (‰))
d15N_Gly (permil relative to AIR (‰))
... (29 more variables)


[Particulate and dissolved Lake Superior geochemistry] - Particulate multi-element geochemical concentrations, dissolved barium concentrations and barium-isotopic data collected during the R/V Blue Heron cruise BH15-11 in Lake Superior during August 2015 (EAGER - Introducing Early Career Scientists to Research on the Great Lakes)

This dataset includes geochemical profiles of water samples collected in
August 2015 at two stations in the western arm of Lake Superior.

These data were published in:
 Tristan J. Horner, Helena V. Pryer, Sune G. Nielsen, Peter W. Crockford,
Julia M. Gauglitz, Boswell A. Wing & Richard D. Ricketts (2017) Pelagic barite
precipitation at micromolar ambient sulfate. Nature Communications 8, Article
number: 1342 (2017) doi:10.1038/s41467-017-01229-5

Other relevant files and publications:
 Horner, T. J., Kinsley, C. W., & Nielsen, S. G. (2015). Barium-isotopic
fractionation in seawater mediated by barite cycling and oceanic circulation.
Earth and Planetary Science Letters, 430, 511-522.

cdm_data_type = Other
VARIABLES:
sta (unitless)
time (ISO Date Time UTC, seconds since 1970-01-01T00:00:00Z)
latitude (degrees_north)
longitude (degrees_east)
depth_w (Depth, meters)
depth (m)
sample (unitless)
Rosette_Position (unitless)
CTDTMP (degrees Celcius)
Ba_TD_CONC_BOTTLE (nanomoles per liter)
Ba_TD_CONC_BOTTLE_stdev (nanomoles per liter)
Ba_138_TD_DELTA_BOTTLE (per mil relative to NIST SRM 3104a)
Ba_138_TD_DELTA_BOTTLE_stdev (per mil relative to NIST SRM 3104a)
Al_TP_CONC_BOTTLE (picomoles per liter)
Al_TP_CONC_BOTTLE_stdev (picomoles per liter)
... (22 more variables)


[Particulate Organic Matter from BVal58 Cruise] - Concentrations of particulate organic matter (POC, PON, POP, PCOD), total oxygen demand, POM ratios, and respiration ratios from samples collected on R/V Atlantic Explorer BATS validation study #58 in the Sargasso Sea in October 2021 (Quantifying ocean oxygen-to-carbon demand by chemical analyses and inverse models)

This dataset includes suspended concentrations of particulate organic carbon (POC), particulate organic nitrogen (PON), particulate organic phosphorus (POP), particulate chemical oxygen demand (PCOD), and total oxygen demand (Sigma_-O2 = PCOD + 2PON) down to a depth of 1000 meters (m) in the Sargasso Sea. This dataset also includes POM ratios (C/N, C/P, & N/P) and respiration ratios (PCOD/POC, Sigma_-O2/C, Sigma_-O2/N, & Sigma_-O2/P) with depth. These measurements were quantified from seawater samples collected aboard the R/V Atlantic Explorer as part of the Bermuda Atlantic Time-series Study Validation cruise #58 (BVal58). BVal58 started at St. George's, Bermuda on 11 October 2021 and the research group disembarked in San Juan, Puerto Rico on 21 October 2021. Euphotic zone samples (5 - 120 m) were collected using a CTD bottle rosette and disphotic zone samples (150 - 1000 m) were collected using large volume pumps.

Climate-induced ocean deoxygenation is increasing, but biological components of oxygen loss remain unconstrained. We determined from this dataset that the total respiration quotient, Sigma_-O2/C, and other respiration ratios of POM vary with depth.

cdm_data_type = Other
VARIABLES:
Station (unitless)
McLane_Cast (unitless)
time (Iso_datetime_utc, seconds since 1970-01-01T00:00:00Z)
Latitude (degrees_north)
longitude (degrees_east)
depth (Depth_m, m)
Volume_L (liters (L))
Filter_Num (unitless)
Duplicate_Filter_Num (unitless)
POP1 (nanomolar (nM))
POP2 (nanomolar (nM))
POP3 (nanomolar (nM))
POP4 (nanomolar (nM))
POP5 (nanomolar (nM))
... (26 more variables)


[Particulate trace elements] - Particulate trace element concentrations from the NOAA R/V Ronald H. Brown CLIVAR A16N cruise in 2013. (Collaborative Research: Trace Metal Deposition And Cycling In The North Atlantic On The 2013 CLIVAR/Repeat Hydrography A16N Expedition)

Particulate trace element concentrations from the NOAA R/V Ronald H. Brown CLIVAR A16N cruise in 2013.

cdm_data_type = Other
VARIABLES:
SECT_ID (unitless)
DATE (unitless)
STNNBR (unitless)
latitude (degrees_north)
longitude (degrees_east)
CASTNO (unitless)
SAMPNO (unitless)
BTLNBR (unitless)
time2 (TIME, unitless)
CTDPRS (dbar)
Mg (nmol/L)
Mg_FLAG (unitless)
Al (nmol/L)
Al_FLAG (unitless)
Si (Mass Concentration Of Silicate In Sea Water, nmol/L)
Si_FLAG (unitless)
P (nmol/L)
P_FLAG (unitless)
S (nmol/L)
S_FLAG (unitless)
Cl (nmol/L)
Cl_FLAG (unitless)
Ca (nmol/L)
Ca_FLAG (unitless)
Ti (nmol/L)
Ti_FLAG (unitless)
... (15 more variables)


[PE23-20 Binned CTD] - Processed CTD data (binned) from 20 casts conducted on R/V Pelican cruise PE23-20 in the Northern Gulf of Mexico in May 2023 (CAREER: Investigating aerobic microbial respiration dynamics in coastal hypoxia)

This dataset includes the processed CTD data from 20 casts conducted on R/V Pelican cruise PE23-20 in the Northern Gulf of Mexico in May 2023. Data were averaged into 1-meter depth bins.

cdm_data_type = Other
VARIABLES:
Cast (unitless)
Lat_Start (degrees_north)
Lon_Start (degrees_east)
time (Iso_datetime_start_utc, seconds since 1970-01-01T00:00:00Z)
altM (meters (m))
avgsvCM (meters per second (m/s))
nbf (unitless)
c0S_m (Siemens per meter (S/m))
c1S_m (Siemens per meter (S/m))
depth (m)
dz_dtM (meters per second (m/s))
flECO_AFL (milligrams per cubic meter (mg/m^3))
wetCDOM (milligrams per cubic meter (mg/m^3))
latitude (degrees_north)
longitude (degrees_east)
sbeox0Mg_L (milligrams per liter (mg/L))
sbeox1Mg_L (milligrams per liter (mg/L))
ptempC (degrees Celsius)
prDM (decibars (db))
sal00 (PSU)
ph (unitless (pH scale))
svCM (meters per second (m/s))
spar (micromoles photons per square meter per second (umol photons/m^2/sec))
t090C (degrees Celsius)
t190C (degrees Celsius)
timeS (seconds)
timeM (minutes)
flag (unitless)