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Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS)
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
A Global Database of Gas Fluxes from Soils after Rewetting or Thawing, Version 1.0
National Aeronautics and Space Administration —
This database contains information compiled from published studies on gas flux from soil following rewetting or thawing. The resulting database includes 222 field and... -
Federal
Nadir Photographs Taken During Low-Altitude Transects of the Arctic Network of National Park Units and Selawik National Wildlife Refuge, Alaska, July 2013
Department of the Interior —
This dataset contains aerial nadir digital photos and ecotype classification data determined from the photos. Aerial nadir photos were taken at 5 second intervals of... -
Federal
MISR Level 1B2 Ellipsoid Data V003
National Aeronautics and Space Administration —
Multi-angle Imaging SpectroRadiometer (MISR) is an instrument designed to view Earth with cameras pointed in 9 different directions. As the instrument flies overhead,... -
Federal
International Bathymetric Chart of the Arctic Ocean, Version 1.0
National Oceanic and Atmospheric Administration, Department of Commerce —
The goal of this initiative is to develop a digital data base that contains all available bathymetric data north of 64 degrees North, for use by mapmakers,... -
Federal
International Bathymetric Chart of the Arctic Ocean, Version 3.0
National Oceanic and Atmospheric Administration, Department of Commerce —
IBCAO Version 3.0 represents the largest improvement since 1999 taking advantage of new data sets collected by the circum-Arctic nations, opportunistic data collected...