Catalog - Data.gov

Found 251 datasets matching "EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrogen > Total".

Federal
Water quality surveys in Culebra: comprehensive assessment of inorganic nutrient concentrations 2023-05-03 to 2024-05-21 (NCEI Accession 0306499)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-11-04T00:00:00.000+00:00
This record describes water quality inorganic nutrient concentration metrics collected monthly between May 2023 to May 2024 to provide reference data of nearshore and watershed water quality on...
- none
- none
- none
- none
- none
- none
- +6 more
Search relevance: 59.81 | Views last month: 0
Federal
Windward Community College Heeia Stream and Kaneohe Bay Water Quality Assessment Project 2002-2003 (NCEI Accession 0001489)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-27T00:00:00.000+00:00
Measurements of water quality parameters were taken by Windward Community College faculty and students at eight sites in the Heeia Stream and adjacent bay waters from December 2002 through...
- none
- none
- none
- none
- none
- none
Search relevance: 58.76 | Views last month: 0
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
- Updated: 2019-10-22T00:00:00.000+00:00
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...
- none
- none
- none
- none
- none
- none
- +5 more
Search relevance: 58.49 | Views last month: 0
Federal
Submarine groundwater discharge at Kahana Bay, Oahu, 1997-2001: in situ CTD and water chemistry tracer data (NCEI Accession 0011399)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2006-12-13T00:00:00.000+00:00
Submarine groundwater discharge (SGD) is neither well understood nor commonly investigated in Hawaii, but it is recognized as a potential pollution source to coastal environments. Between 1997 and...
- none
- none
- none
- none
- none
- none
Search relevance: 56.58 | Views last month: 1
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
- Updated: 2020-07-21T00:00:00.000+00:00
Surface water and groundwater radium activities, concentrations of various dissolved materials, and environmental parameters (water temperature, salinity, and pH). Activities of 228Ra, 226Ra,...
- none
- none
- none
- none
- none
- none
Search relevance: 56.56 | Views last month: 0
Federal
Near shore water chemistry data from Island of Hawaii and Lanai 1988-2011 (NCEI Accession 0104398)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2018-07-30T00:00:00.000+00:00
This data set contains coastal water quality parameters as measured at seven shoreline locations on the west side of the Island of Hawaii and one site on Lanai, Hawaii during 1988-2011. Each...
- none
- none
- none
- none
- none
- none
Search relevance: 56.51 | Views last month: 0
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
- Updated: 2019-10-21T00:00:00.000+00:00
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...
- none
- none
- none
- none
- none
- none
- +4 more
Search relevance: 56.45 | Views last month: 0
Federal
Nutrients, sedimentation and total suspended solids in the St. Thomas East End Reserves in the Caribbean Sea from 2012-01-16 to 2013-11-25 (NCEI Accession 0139480)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-01-15T00:00:00.000+00:00
This data set contains the results from monitoring in the St. Thomas East End Reserves (STEER) in St. Thomas, USVI, from January 2012 to November 2013. The monitoring was conducted by project...
- none
- none
- none
- none
- none
- none
- +2 more
Search relevance: 56.29 | Views last month: 0
Federal
Macro-algae Biomass and Cover from Nearshore Regions of the Natatorium War Memorial, Waikiki, Oahu, Hawaii 1966-2005 (NODC Accession 0040082)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-01-06T00:00:00.000+00:00
The Department of Zoology, University of Hawaii at Manoa, incorporated surveys of macro-algae as part of the Zoology 439L "Laboratory in Ecology" during annual field experiments 1970-2005....
- none
Search relevance: 55.64 | Views last month: 0
Federal
Sediment and porewater nitrification and organic matter data in a Northern Gulf of Mexico marsh from 2021-05-26 to 2022-05-21 (NCEI Accession 0301084)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2025-02-05T00:00:00.000+00:00
We conducted a year-long study with the main objective of comparing denitrification, anammox, and dissimilatory nitrate reduction to ammonium (DNRA) across three different vegetation zones...
- none
- none
- none
- none
- none
- none
Search relevance: 55.62 | Views last month: 0
Federal
Bottle data collected for chemical analysis along the coastal waters of Hawai'i as part of the Windward Community College Heeia Stream and Kaneohe Bay Water Quality Assessment Project from May 22, 2004 to March 19, 2005 (NCEI Accession 0002449)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2005-11-29T00:00:00.000+00:00
Measurements of water quality parameters were taken by Windward Community College faculty and students at eight sites in the Heeia Stream and adjacent Kaneohe Bay waters from May 2004 through...
- none
- none
- none
- none
- none
- none
Search relevance: 55.33 | Views last month: 0
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
- Updated: 2024-08-28T00:00:00.000+00:00
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...
- none
- none
- none
- none
- none
- none
Search relevance: 54.61 | Views last month: 0
Federal
Physical and nutrient data from bottle and CTD casts from the THOMAS THOMPSON from the equatorial Pacific Ocean from 30 January 1992 to 09 March 1992 (NCEI Accession 9600091)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2013-03-19T00:00:00.000+00:00
Physical and nutrient data were collected from bottle and CTD casts from the THOMAS THOMPSON from the equatorial Pacific Ocean. Data were collected by the Bigelow Laboratory for Ocean Sciences 30...
- none
- none
- none
- none
- none
- none
Search relevance: 54.50 | Views last month: 0
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
- Updated: 2021-11-02T00:00:00.000+00:00
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...
- none
- none
- none
- none
- none
- none
- +1 more
Search relevance: 54.27 | Views last month: 0
Federal
Temperature, Salinity, pH, Oxygen, Inorganic and Organic Nitrogen, Phosphorus and Carbon, Suspended Sediments and Chlorophyll-a data for the Mobile Bay and Mississippi Sound from 2020-05-28 to present (NCEI Accession 0277234)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-04-04T00:00:00.000+00:00
Twenty-six surveys were carried out under the NOAA “RESTORE” project from 2020-present. The main objective of this project was to determine the spatial and temporal variability of parameters in...
- none
- none
- none
- none
- none
- none
- +4 more
Search relevance: 54.20 | Views last month: 0
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
- Updated: 2020-05-26T00:00:00.000+00:00
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...
- none
- none
- none
- none
- none
- none
- +3 more
Search relevance: 53.70 | Views last month: 0
Federal
WATER TEMPERATURE and Other Data from AMBARIAKA from 1963-12-17 to 1964-03-27 (NCEI Accession 7100085)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-04-06T00:00:00.000+00:00
No description was provided.
- none
- none
- none
- none
- none
Search relevance: 53.38 | Views last month: 0
Federal
NODC Standard Product: International Ocean Atlas Volume 2 - Biological Atlas of the Arctic Seas 2000 - Plankton of the Barents and Kara Seas (1 disc set) (NCEI Accession 0098568)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2022-01-12T00:00:00.000+00:00
This CD-ROM, NODC-146, contains physical and biological data for the region extending from the Barents Sea to the Kara Sea during 158 scientific cruises for the period 1913-1999. Maps with the...
- none
- none
- none
- none
- none
- none
Search relevance: 53.30 | Views last month: 0
Federal
WATER TEMPERATURE and Other Data from A. AGASSIZ and Other Platforms from 1964-04-01 to 1964-11-01 (NCEI Accession 6800326)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-04-05T00:00:00.000+00:00
No description was provided.
- none
- none
- none
- none
- none
Search relevance: 53.28 | Views last month: 0
Federal
Nitrogen content and delta N-15 of marine algae and associated waters of Maui, Hawaii, from 2012-07-28 to 2014-04-01 (NCEI Accession 0156294)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-08-12T00:00:00.000+00:00
This dataset includes nutrient data related to algal and water samples collected between 2012 and 2014 on Maui, Hawaii, as part of the University of Hawaii SeaGrant Project R/HE-17. Algal tissue...
- none
- none
- none
- none
- none
- none
- +2 more
Search relevance: 53.16 | Views last month: 0

Filter selections are applied on each click