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#1 Federal

CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 13, 2026 at 12:00 AM

This collection includes surface primary production (carbon fixation rates by photosynthesis of planktonic algae), regional hydrography, physical forcing variables (such as the wind), and the...

Search relevance: 1.00 | Views last month: 90 | Catalog Last Checked: May 29, 2026 at 10:54 PM

#2 Federal

Dissolved inorganic carbon (DIC), total alkalinity (TA), pH on total scale, partial pressure of CO2 (pCO2), hydrogen sulfide (H2S), methane (CH4), nutrients, dissolved oxygen, water temperature, salinity and other measurements collected from discrete samples and profile observations in Whycocomagh Bay, Bras d’Or lakes from 2016-12-06 to 2017-12-05 (NCEI Accession 0240802)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: September 02, 2021 at 12:00 AM

This dataset includes discrete sample and profile data collected in Whycocomagh Bay, Bras d’Or lakes from 2016-12-06 to 2017-12-05. These data include dissolved inorganic carbon (DIC), total...

Search relevance: 1.00 | Views last month: 10 | Catalog Last Checked: May 29, 2026 at 07:55 PM

#3 Federal

MEDAR MEDATLAS DATABASE: Temperature, salinity, and nutrient observations collected in the Mediterranean and Black Seas as part of the MEDAR/MEDATLAS project, 1889-2000 (NCEI Accession 0000996)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: January 03, 2022 at 12:00 AM

The MEDAR MEDATLAS DATABASE provides data and information compiled during the MEditerranean Data Archaeology and Rescue (MEDAR) MEDATLAS II project and Inventory of hydrological oceanographic...

Search relevance: 1.00 | Views last month: 9 | Catalog Last Checked: June 28, 2026 at 06:45 PM

#4 Federal

Inorganic nutrients, sulfide and oxygen profiles from R/V KNORR in the Black Sea from 1988-05-14 to 1988-07-25 (NCEI Accession 9400101)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: November 19, 2002 at 12:00 AM

This data collection contains inorganic nutrient chemistry, sulfide and oxygen data collected during cruises 2 through 5 of the 1988 Black Sea Oceanographic Expedition aboard the R/V Knorr....

Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 29, 2026 at 10:42 PM

#5 Federal

Ecosystem carbon exchange and nitrogen removal rates in two 33-year-old constructed salt marshes are similar to those in a nearby natural marsh 2018-11-30 to 2020-03-08 (NCEI Accession 0227949)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: April 21, 2021 at 12:00 AM

We conducted a year-long study with the main objective of comparing seasonal plant productivity, ecosystem respiration (ER), denitrification, and dissimilatory nitrate reduction to ammonium (DNRA)...

Search relevance: 1.00 | Views last month: 5 | Catalog Last Checked: May 29, 2026 at 07:51 PM

#6 Federal

Effects of Hydrogen Sulfide (H2S) on Z. marina seedlings, seed germination and shoot density from 2013-01-16 to 2015-09-11 (NCEI Accession 0156588)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 20, 2016 at 12:00 AM

Multiple experiments were conducted to determine the effects hydrogen sulfide had on seedlings and seed germination in the seagrass Zostera marina. One study identified lethal limits of H2S for Z....

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 28, 2026 at 07:50 PM

#7 Federal

Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN509 in the Gulf of Mexico from 2012-05-26 to 2012-06-19 (NCEI Accession 0205197)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 21, 2019 at 12:00 AM

This dataset contains water and sediment chemistry, and elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise EN509 in the northern...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 28, 2026 at 08:33 PM

#8 Federal

CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: May 26, 2020 at 12:00 AM

This dataset contains CTD, and water and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03. The CTD data were...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: June 28, 2026 at 08:43 PM

#9 Federal

Water column and sediment geochemical data taken by bottle and bottom samples from research vessel Atlantis (cruise AT41) in the southeastern U.S. Atlantic margin from 2018-08-21 to 2018-08-31 (NCEI Accession 0242498)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: November 02, 2021 at 12:00 AM

This dataset contains water column and sediment geochemical data taken by bottle and bottom samples from research vessel Atlantis (cruise AT41) in the southeastern U.S. Atlantic margin in August...

Search relevance: 1.00 | Views last month: 4 | Catalog Last Checked: May 29, 2026 at 07:56 PM

#10 Federal

Rates of denitrification and porewater nutrient concentrations at a saltmarsh in Alabama from 2015-04 to 2016-10 (NCEI Accession 0219938)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: September 30, 2020 at 12:00 AM

This dataset is generated from a study of a saltmarsh on Dauphin Island (30˚15.43′N, 88˚07.438′W) that is dominated by Spartina alterniflora and is interspersed with Juncus roemerianus. Tides are...

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 29, 2026 at 07:46 PM

#11 Federal

Methane (CH4), Sulfate (SO4 2-), and others collected from E/V Nautilus in NE Pacific and Cascadia Margin from 2020-09-28 to 2020-09-30 (NCEI Accession 0276512)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: February 07, 2023 at 12:00 AM

These data were collected from sediment at two separate ~1000m deep methane seeps on the Cascadia Margin. Sediment cores were collected at the seeps and then at increasing distance from the areas...

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 29, 2026 at 08:07 PM

#12 Federal

Surface water and shallow groundwater geochemistry and radium isotopes measured from land-based sampling in coastal Georgia, USA from 2001-07-26 to 2010-09-28 (NCEI Accession 0208686)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: July 21, 2020 at 12:00 AM

Surface water and groundwater radium activities, concentrations of various dissolved materials, and environmental parameters (water temperature, salinity, and pH). Activities of 228Ra, 226Ra,...

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: June 28, 2026 at 08:37 PM

#13 Federal

Ocean physical and chemical profile data from the Oden-91 cruise in the Arctic Sea from 1991-08-17 to 1991-10-03 (NCEI Accession 9700175)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: August 28, 2024 at 12:00 AM

This dataset includes physical and chemical oceanographic profile data from the Oden-91 cruise in the Arctic Sea from 1991-08-17 to 1991-10-03. The data were provided by Leif Andersson from...

Search relevance: 1.00 | Views last month: 3 | Catalog Last Checked: May 29, 2026 at 10:48 PM

#14 Federal

Experimental studies of influence of hydrogen sulfide on species of eelgrass (Zostera japonica and Zostera marina) in Padilla Bay, coastal waters of southeast Alaska, from 2013-06-01 to 2013-09-30 (NCEI Accession 0137907)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: November 16, 2015 at 12:00 AM

Two species of eelgrass can be found in Padilla Bay, Washington (Zostera japonica and Zostera marina) and act as a bioindicators of ecosystem health. Many factors can contribute to the status of...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: June 28, 2026 at 07:42 PM

#15 Federal

CTD, and water and sediment chemistry data collected aboard R/V Endeavor cruise EN528 in the northern Gulf of Mexico from 2013-07-07 to 2013-07-23 (NCEI Accession 0217734)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: August 31, 2020 at 12:00 AM

This dataset contains CTD, and water and sediment chemistry data collected aboard R/V Endeavor cruise EN528 in the northern Gulf of Mexico from 2013-07-07 to 2013-07-03. The CTD data were...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 29, 2026 at 07:45 PM

#16 Federal

ADCP, CTD, water and sediment chemistry, and underway sensor data collected aboard R/V Endeavor cruise EN505 in the Gulf of Mexico from 2012-04-11 to 2012-04-24 (NCEI Accession 0194300)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: September 09, 2019 at 12:00 AM

This dataset contains ADCP, CTD, water and sediment chemistry, and other underway sensor data collected aboard R/V Endeavor cruise EN505 in the Gulf of Mexico from 2012-04-11 to 2012-04-24. The...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: June 28, 2026 at 08:30 PM

#17 Federal

Chemical and physical oceanographic data in Irondequoit Bay, Lake Ontario, from 1969-08-01 to 1972-12-01 (NCEI Accession 7400630)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: December 06, 2023 at 12:00 AM

This dataset consists of chemical and physical oceanographic data including water temperature, electrical conductivity, light transmission, Secchi depth, dissolved oxygen, sulfate, bromide, and...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: May 29, 2026 at 09:31 PM

#18 Federal

Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN510 in the Gulf of Mexico from 2012-06-27 to 2012-07-04 (NCEI Accession 0205623)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 22, 2019 at 12:00 AM

This dataset contains water and sediment chemistry, and elemental (total C and N, C/N ratio) and isotopic (delta 13C, delta 15N) data collected during R/V Endeavor cruise EN510 in the northern...

Search relevance: 1.00 | Views last month: 2 | Catalog Last Checked: June 28, 2026 at 08:33 PM

#19 Federal

MEDAR MEDATLAS DATABASE: Temperature, salinity, and nutrient observations collected in the Mediterranean and Black Seas as part of the MEDAR/MEDATLAS project, 1889-2000 (NCEI Accession 0000996)

Organization: U.S. Census Bureau, Department of Commerce
Dataset Last Updated: January 03, 2022 at 12:00 AM

The MEDAR MEDATLAS DATABASE provides data and information compiled during the MEditerranean Data Archaeology and Rescue (MEDAR) MEDATLAS II project and Inventory of hydrological oceanographic...

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: May 06, 2026 at 12:44 AM

#20 Federal

Hypoxia and Hydrogen Sulfide (H2S) in Padilla Bay, WA from 2014-07-09 to 2014-09-30 (NCEI Accession 0156596)

Organization: National Oceanic and Atmospheric Administration, Department of Commerce
Dataset Last Updated: October 18, 2016 at 12:00 AM

Hypoxia has the potential to be a stressor to eelgrass as it can lead to tissue anoxia at night. These tissues then must undergo anaerobic metabolism, which is less energetically efficient and can...

Search relevance: 1.00 | Views last month: 1 | Catalog Last Checked: June 28, 2026 at 07:50 PM

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CARIACO Ocean Time-Series data collected in the Cariaco Basin since 1995

MEDAR MEDATLAS DATABASE: Temperature, salinity, and nutrient observations collected in the Mediterranean and Black Seas as part of the MEDAR/MEDATLAS project, 1889-2000 (NCEI Accession 0000996)

Inorganic nutrients, sulfide and oxygen profiles from R/V KNORR in the Black Sea from 1988-05-14 to 1988-07-25 (NCEI Accession 9400101)

Ecosystem carbon exchange and nitrogen removal rates in two 33-year-old constructed salt marshes are similar to those in a nearby natural marsh 2018-11-30 to 2020-03-08 (NCEI Accession 0227949)

Effects of Hydrogen Sulfide (H2S) on Z. marina seedlings, seed germination and shoot density from 2013-01-16 to 2015-09-11 (NCEI Accession 0156588)

Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN509 in the Gulf of Mexico from 2012-05-26 to 2012-06-19 (NCEI Accession 0205197)

CTD, water, and sediment chemistry data collected aboard R/V Endeavor cruise EN527 in the northern Gulf of Mexico from 2013-06-20 to 2013-07-03 (NCEI Accession 0210558)

Water column and sediment geochemical data taken by bottle and bottom samples from research vessel Atlantis (cruise AT41) in the southeastern U.S. Atlantic margin from 2018-08-21 to 2018-08-31 (NCEI Accession 0242498)

Rates of denitrification and porewater nutrient concentrations at a saltmarsh in Alabama from 2015-04 to 2016-10 (NCEI Accession 0219938)

Methane (CH4), Sulfate (SO4 2-), and others collected from E/V Nautilus in NE Pacific and Cascadia Margin from 2020-09-28 to 2020-09-30 (NCEI Accession 0276512)

Surface water and shallow groundwater geochemistry and radium isotopes measured from land-based sampling in coastal Georgia, USA from 2001-07-26 to 2010-09-28 (NCEI Accession 0208686)

Ocean physical and chemical profile data from the Oden-91 cruise in the Arctic Sea from 1991-08-17 to 1991-10-03 (NCEI Accession 9700175)

Experimental studies of influence of hydrogen sulfide on species of eelgrass (Zostera japonica and Zostera marina) in Padilla Bay, coastal waters of southeast Alaska, from 2013-06-01 to 2013-09-30 (NCEI Accession 0137907)

CTD, and water and sediment chemistry data collected aboard R/V Endeavor cruise EN528 in the northern Gulf of Mexico from 2013-07-07 to 2013-07-23 (NCEI Accession 0217734)

ADCP, CTD, water and sediment chemistry, and underway sensor data collected aboard R/V Endeavor cruise EN505 in the Gulf of Mexico from 2012-04-11 to 2012-04-24 (NCEI Accession 0194300)

Chemical and physical oceanographic data in Irondequoit Bay, Lake Ontario, from 1969-08-01 to 1972-12-01 (NCEI Accession 7400630)

Water and sediment chemistry, and elemental (C/N ratios) and isotopic (delta 13C, delta 15N) data collected aboard R/V Endeavor cruise EN510 in the Gulf of Mexico from 2012-06-27 to 2012-07-04 (NCEI Accession 0205623)

MEDAR MEDATLAS DATABASE: Temperature, salinity, and nutrient observations collected in the Mediterranean and Black Seas as part of the MEDAR/MEDATLAS project, 1889-2000 (NCEI Accession 0000996)

Hypoxia and Hydrogen Sulfide (H2S) in Padilla Bay, WA from 2014-07-09 to 2014-09-30 (NCEI Accession 0156596)