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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
USGS Global Fiducials
National Aeronautics and Space Administration —
The Global Fiducials Library (GFL) is a long-term archive of images from U.S. National Imagery Systems which represents a long-term periodic record for selected...