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Federal
California State Waters Map Series--Offshore of San Francisco Web Services
Department of the Interior —
In 2007, the California Ocean Protection Council initiated the California Seafloor Mapping Program (CSMP), designed to create a comprehensive seafloor map of high-... -
Federal
Wet deposition of reduced nitrogen in the United States Pacific Northwest for 2002
Department of the Interior —
This spatial data set was created by the U.S. Geological Survey (USGS) to represent the amount of wet deposition of reduced nitrogen in the Pacific Northwest region... -
Federal
U.S. Geological Survey Precipitation Chemistry Quality Assurance Project Data 2017 – 2018
Department of the Interior —
The USGS Precipitation Chemistry Quality Assurance Project (PCQA) operates QA programs to challenge and test the National Atmospheric Deposition Program (NADP) data-... -
Federal
Data Release for Late Quaternary loess and soils on uplands in the Canyonlands and Mesa Verde areas, Utah and Colorado
Department of the Interior —
Thin loess deposits on the uplands of the southeastern Colorado Plateau have previously not been well studied. We sampled deposits and soils from trenches on Hatch... -
Federal
Inorganic Nitrogen Wet Deposition for the Conterminous United States, 1981
Department of the Interior —
Annual inorganic nitrogen wet deposition were estimated for the conterminous United States for 1981. The estimates were derived from inorganic nitrogen concentrations... -
Federal
Seasonal Atmospheric Nitrate and Ammonium Deposition along an Elevation Gradient in the Colorado Front Range using Ion Exchange Resin Columns (2018-2019)
Department of the Interior —
Atmospheric deposition of reactive nitrogen (Nr) due to human activities can have measurable effects on ecosystem processing and export of nutrients, groundwater and... -
Federal
Point Shapefile of the Interpreted Flooding Surface Isopach Based on Seismic-Reflection Profiles Collected in Apalachicola Bay in 2006 from U.S. Geological Survey Cruise 06001 (FLOODISO_GEOG.SHP, Geographic, WGS84)
Department of the Interior —
Apalachicola Bay and St. George Sound contain the largest oyster fishery in Florida, and the growth and distribution of the numerous oyster reefs here are the... -
Federal
Next Generation National Nutrient Inventory for Nitrogen and Phosphorus (1987 to 2017)
U.S. Environmental Protection Agency —
The United States Environmental Protection Agency’s National Nutrient Inventory provides estimates of major agricultural, urban, atmospheric, and natural nutrient...