Catalog - Data.gov

Found 242 datasets matching "Ammonium concentration (NH4+)".

Federal
Nutrient data collected from experimental tanks observing the effect of nutrient pollution on Acropora cervicornis disease susceptibility from 2020-09-14 to 2020-11-13 (NCEI Accession 0278916)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-06-12T00:00:00.000+00:00
This dataset contains the nutrient results for an experiment that assessed the effects of elevated NH4 on corals disease susceptibility. Eleven Acropora cervicornis genotypes were selected to...
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Search relevance: 86.34 | Views last month: 0
Federal
NOAA RESTORE Science Program: Effects of nitrogen sources and plankton food-web dynamics on habitat quality for the larvae of Atlantic Bluefin Tuna in the Gulf of Mexico - biogeochemistry, dissolved inorganic nutrient, mesozooplankton, phytoplankton, and bacteria data from 2017-05-10 to 2018-05-19
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-06-10T00:00:00.000+00:00
This dataset presents results from surface-tethered drifting sediment traps, zooplankton net tows, dissolved inorganic nutrient concentration analyses made on water column samples, and flow...
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Search relevance: 81.19 | Views last month: 0
Federal
Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from NOAA Ship GORDON GUNTER in the North Atlantic Ocean and Stellwagen Bank National Marine Sanctuary from 2013-06-09 to 2013-11-25 (NCEI Accession 0144340)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-02-26T00:00:00.000+00:00
This dataset includes discrete sample and profile data collected from NOAA Ship GORDON GUNTER in the North Atlantic Ocean and Stellwagen Bank National Marine Sanctuary from 2013-06-09 to...
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Search relevance: 80.19 | Views last month: 0
Federal
Experimental evaluation of nutrient and disease treatment effects on Acropora cervicornis (NCEI Accession 0299892)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2024-12-20T00:00:00.000+00:00
Acropora cervicornis fragments of each genotype were evenly and haphazardly assigned to two nutrient treatments: ambient nutrients (Ambient) or elevated ammonium (NH4). Each nutrient treatment...
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Search relevance: 73.19 | Views last month: 0
Federal
Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2010-05-13 to 2010-05-30 (NCEI Accession 0108225)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2017-02-22T00:00:00.000+00:00
This dataset includes chemical, discrete sample, physical and profile data collected from HUDSON in the Davis Strait, Labrador Sea and North Atlantic Ocean from 2010-05-13 to 2010-05-30. These...
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Search relevance: 71.98 | Views last month: 0
Federal
Partial pressure (or fugacity) of carbon dioxide, dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample, profile and time series profile observations using Alkalinity titrator, CTD and other instruments from HERMANO GINES in the Caribbean Sea from 1995-11-08 to 2015-07-29 (NCEI Accession 0112926)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-05-04T00:00:00.000+00:00
This dataset includes discrete sample, profile and time series profile data collected from HERMANO GINES in the Caribbean Sea from 1995-11-08 to 2015-07-29. These data include AMMONIUM (NH4),...
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Search relevance: 71.65 | Views last month: 0
Federal
Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, Coulometer for DIC measurement and other instruments from RYOFU MARU in the North Pacific Ocean and Philippine Sea from 2000-06-20 to 2000-07-31 (NCEI Accession 0112278)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2016-02-21T00:00:00.000+00:00
This dataset includes discrete sample and profile data collected from RYOFU MARU in the North Pacific Ocean and Philippine Sea from 2000-06-20 to 2000-07-31 and retrieved during cruise...
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Search relevance: 70.87 | Views last month: 0
Federal
Monthly inorganic nitrogen atmospheric wet deposition estimates for the conterminous United States, 1999 through 2020
- Organization: Department of the Interior
- Updated: 2023-04-19T00:00:00Z
This data release provides estimates of monthly wet atmospheric deposition of total inorganic nitrogen (TIN)--the summation of nitrate (NO3) and ammonium (NH4) ions--for the conterminous United...
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Search relevance: 69.45 | Views last month: 0
Federal
LBA-ECO ND-07 Nitric Oxide Flux from Cerrado Soils, Brasilia, Brazil: 2004
- Organization: National Aeronautics and Space Administration
- Updated: 2026-02-17
This data set reports the results of soil nitric oxide (NO) flux, soil moisture, and soil nitrate (NO3) and ammonium (NH4) concentration measurements on Cerrado soils receiving nitrogen...
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Search relevance: 69.21 | Views last month: 0
Federal
Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the RYOFU MARU in the North Pacific Ocean from 1997-05-30 to 1997-06-22 (NCEI Accession 0117505)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2014-04-21T00:00:00.000+00:00
This dataset includes biological, chemical, discrete sample, physical and profile data collected from RYOFU MARU in the North Pacific Ocean from 1997-05-30 to 1997-06-22. These data include...
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Search relevance: 64.36 | Views last month: 0
Federal
Saltmarsh carbon and nitrogen cycling nutrient data in two northern Gulf of Mexico saltmarsh plants from 2017-2018 (NCEI Accession 0209238)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-05-08T00:00:00.000+00:00
This dataset contains salt marsh nutrient data to determine the biogeochemical impact of elevated nutrient loading on ecosystem carbon dynamics and nitrate reduction pathways (denitrification and...
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Search relevance: 46.32 | Views last month: 0
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
- Updated: 2021-04-21T00:00:00.000+00:00
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)...
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Search relevance: 35.13 | 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...
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Search relevance: 30.71 | Views last month: 0
Federal
pH, WATER TEMPERATURE, and others in Coastal Waters of Texas from 2018-10-25 to 2020-03-16 (NCEI Accession 0229071)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-06-09T00:00:00.000+00:00
This dataset includes a variety of environmental variables from surface water of five wetland sites (three natural and two restored), and the effluent of three wastewater treatment plants....
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Search relevance: 30.09 | Views last month: 0
Federal
Nitrate reduction rates and soil/ water chemistry from roadside ditches in the Mobile Bay (AL, USA) region (2018-05-23 to 2018-06-08) (NCEI Accession 0211099)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2020-07-15T00:00:00.000+00:00
Ninety-six roadside ditches spanning three landuse types in the Mobile Bay (Alabama, USA) region were sampled in May-June of 2018. Isotope pairing was used to measure nitrate reduction rates...
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Search relevance: 29.72 | Views last month: 0
Federal
Nutrient, chlorophyll, oxygen, and others taken by CTD water samples from the USCGC Healy, cruise HE1702, in the Bering and Chukchi Seas from 2017-08-26 to 2017-09-15 (NCEI Accession 0231437)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2021-05-03T00:00:00.000+00:00
This dataset contains nutrient, chlorophyll, oxygen, and others taken by CTD water samples from the USCGC Healy, cruise HE1702, in the Bering and Chukchi Seas, and the Arctic Ocean. Discrete water...
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Search relevance: 24.48 | Views last month: 0
Federal
Synoptic Bi-monthly and storm response water quality sampling in Southern Kaneohe Bay, Hawaii, from November 2007 - April 2009 (NCEI Accession 0062644)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2010-03-12T00:00:00.000+00:00
Synoptic sampling including water column profiles and collected surface water samples was conducted on a bi-monthly basis throughout the rainy season (October-May) and on a monthly basis in the...
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Search relevance: 23.96 | Views last month: 0
Federal
Nutrients data from bottle casts in the Bering Sea from R/V ALPHA HELIX as part of the Inner Shelf Transport and Recycling Project 1986-07-04 to 1986-09-25 (NCEI Accession 0000293)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2013-03-14T00:00:00.000+00:00
Nitrate, nitrite, phosphate, silicate, and other data were collected from R/V ALPHA HELIX from July 4, 1986 to September 25, 1986. Data were submitted by University of Alaska - Fairbanks;...
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Search relevance: 23.78 | Views last month: 0
Federal
CalHABMAP - HABs Santa Monica Pier data
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2026-01-04T00:00:00.000+00:00
The California Harmful Algal Bloom Monitoring and Alert Program (CalHABMAP) collects weekly phytoplankton and water quality data at eight piers along the Central and Southern California coast....
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Search relevance: 22.88 | Views last month: 1
Federal
Nutrients profile data from R/V ALPHA HELIX in the Bering Sea in support of the Inner Shelf Transport and Recycling Project (ISHTAR) from 1985-07-13 to 1985-10-14 (NCEI Accession 0000276)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2013-03-14T00:00:00.000+00:00
Ammonium, nitrate, nitrite, phosphate, silicate, and urea data were collected from R/V ALPHA HELIX from July 13, 1985 to October 14, 1985. Data were submitted by University of Alaska - Fairbanks;...
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Search relevance: 22.88 | Views last month: 0

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