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Found 3729 dataset(s) matching "surface samples".

LBA-ECO ND-11 Litter Decomposition, Carbon, and Nitrogen Dynamics in Agroforestry
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: November 04, 2025 at 09:41 PM
It has been proposed that the C/N ratio, or quality, of litter or mulch mixtures affects N release. Although total N release from these mixtures and the effects on soil N are relatively well...
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Surrogate regression models for computation of time series suspended-sediment concentrations, Chester County, Pennsylvania (2020)
- Organization: Department of the Interior
- Updated: 20210331 | Harvested: July 16, 2025 at 02:14 PM
The U.S. Geological Survey (USGS), in cooperation with the Chester County Water Resources Authority (CCWRA), has collected discrete stream samples for analysis of suspended-sediment concentrations...
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Physical and chemical profile data from bottle and CTD casts from stations in the Sinclair Inlet from 1977-01-14 to 1977-12-13 (NCEI Accession 9800192)
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-02-16T00:00:00.000+00:00 | Harvested: October 04, 2025 at 10:00 AM
This dataset contains Olympic College sample water quality data as received from Dr. Don Seavy, including student-collected Sinclair Inlet temperatures, salinity, oxygen, pH and Secchi depth data...
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Global Annual Soil Respiration Data (Raich and Schlesinger 1992)
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: October 02, 2025 at 02:50 AM
This data set is a compilation of soil respiration rates (g C m-2 yr-1) from terrestrial and wetland ecosystems reported in the literature prior to 1992. These rates were measured in a variety of...
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PEM West A In-Situ DC-8 Meteorology and Navigation Data
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: October 23, 2025 at 08:50 PM
PEM-West-A_MetNav_AircraftInSitu_DC8_Data is the in situ meteorology and navigation data collected onboard the DC-8 aircraft during the Pacific Exploratory Mission (PEM) West A suborbital...
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BOREAS TGB-12 Radon-222 Flux Data: NSA
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-10 | Harvested: October 29, 2025 at 09:17 PM
The BOREAS TGB-12 team made measurements of soil carbon inventories, carbon concentration in soil gases, and rates of soil respiration at several sites to estimate the rates of carbon accumulation...
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Post-fire Recovery of Soil Organic Layer Carbon in Canadian Boreal Forests, 2015-2018
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: October 11, 2025 at 06:01 PM
This dataset provides site moisture, soil organic layer thickness, soil organic carbon, nonvascular plant functional group, stand dominance, ecozone, time-after-fire, jack pine proportion, and...
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BOREAS TGB-12 Radon-222 Activity Data over the NSA
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-10 | Harvested: September 14, 2025 at 04:50 AM
The BOREAS TGB-12 team made measurements of soil carbon inventories, carbon concentration in soil gases, and rates of soil respiration at several sites to estimate the rates of carbon accumulation...
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Data from the Joint Global Ocean Flux Study (JGOFS) Arabian Sea Process Study Program, 1992 to 1997
- Organization: National Oceanic and Atmospheric Administration, Department of Commerce
- Updated: 2023-05-22T00:00:00.000+00:00 | Harvested: October 13, 2025 at 05:49 AM
This dataset includes physical, chemical, meteorological, and biological data, including zooplankton abundance, primary production, carotenoids, phaeophytin, fluorescence, pigments and...
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Delta-X: Soil Accretion Rates from Cs-137 Activity and NUMAR Validation, MRD, LA
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: September 14, 2025 at 04:20 AM
This dataset holds measurements of Cesium-137 (137Cs) activity sampled from sites in the Atchafalaya and Terrebonne Basins on the southern coast of Louisiana, USA. Sediment cores were taken to...
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SAFARI 2000 Annual Soil Respiration Data (Raich and Schlesinger 1992)
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: September 29, 2025 at 02:03 AM
The data set consists of a southern African subset of the "Global Annual Soil Respiration Data (Raich and Schlesinger 1992)" data set. The data file is in ASCII text format and contains four...
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Plankton occurrence in the Willamette River, Portland, Oregon, 2024 (ver. 2.0, September 2024)
- Organization: Department of the Interior
- Updated: 20240903 | Harvested: July 16, 2025 at 01:12 AM
This data release contains plankton sampling results collected in the Willamette River in Portland, Oregon. The data release will be updated with new results as they are collected. The samples in...
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PEM West B In-Situ DC-8 Meteorology and Navigation Data
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: September 14, 2025 at 01:32 AM
PEM-West-B_MetNav_AircraftInSitu_DC8_Data is the in situ meteorology and navigation data collected onboard the DC-8 aircraft during the Pacific Exploratory Mission (PEM) West B suborbital...
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SAFARI 2000 Surface Irradiance Measurements, Mongu Tower Site, Zambia, 2000-2002
- Organization: National Aeronautics and Space Administration
- Updated: 2025-09-11 | Harvested: September 17, 2025 at 07:41 PM
This data set contains the top-of-canopy irradiance in the shortwave (0.3-2.8 micron) and photosynthetically active radiation (PAR; 0.4-0.7 micron) wavebands collected with an Eppley Precision...
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Evaluation of Surface Water Quality - Effects of Existing and Proposed Development, 1978-1979
- Organization: Department of the Interior
- Updated: 2024-06-18 | Harvested: June 26, 2025 at 12:53 AM
This data package was created 2024-06-18 10:47:14 by NPSTORET and includes selected project, location, and result data. Data contained in YOSE0003_NPSTORET_BE_20240524.ACCDB (NPSTORET back-end...
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Patent AT-E401563-T1: [Translated] WASHING PROCEDURE FOR REMOVAL OF UNDESIRABLE COMPONENTS IN SAMPLES TO BE ANALYZED
- Organization: U.S. Department of Health & Human Services
- Updated: 2025-09-06 | Harvested: September 06, 2025 at 11:09 PM
A method for removing undesired component(s) from bound desired component(s) in an analysis including: (a) providing a container having a desired component bound thereto and an undesired...
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14BIM05_SSS_50cm_WGS84_UTM16N_Tile2: The 0.50-meter sample resolution of the side-scan sonar data collected in 2014 near Breton National Wildlife Refuge, Louisiana. This is tile two of four for this dataset.
- Organization: Department of the Interior
- Updated: 20201013 | Harvested: July 16, 2025 at 04:24 AM
As part of the Barrier Island Monitoring Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off...
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14BIM05_SSS_50cm_WGS84_UTM16N_Tile4: The 0.50-meter sample resolution of the side-scan sonar data collected in 2014 near Breton National Wildlife Refuge, Louisiana. This is tile four of four for this dataset.
- Organization: Department of the Interior
- Updated: 20201013 | Harvested: July 18, 2025 at 09:25 AM
As part of the Barrier Island Monitoring Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off...
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14BIM05_SSS_50cm_WGS84_UTM16N_Tile1: The 0.50-meter sample resolution of the side-scan sonar data collected in 2014 near Breton National Wildlife Refuge, Louisiana. This tile is one of four for this dataset.
- Organization: Department of the Interior
- Updated: 20201013 | Harvested: July 18, 2025 at 09:23 AM
As part of the Barrier Island Monitoring Project, scientists from the U.S. Geological Survey (USGS) St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off...
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1-Meter Sample Resolution Interferometric Swath Backscatter Data Collected in 2012 from the Chandeleur Islands, Louisiana (U.S. Geological Survey Field Activity Number 12BIM03)
- Organization: Department of the Interior
- Updated: 20201013 | Harvested: July 16, 2025 at 06:20 AM
As part of the Barrier Island Evolution Research Project, scientists from the U.S. Geological Survey's St. Petersburg Coastal and Marine Science Center conducted nearshore geophysical surveys off...
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