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What Data Do We Use?

USGS Landcover for the lower 48 has been updated to 2016 data

USGS Updated data

Elevation data sources

Resolution of Elevation Data
Source for CONUS and Hawai: USGS NED 1/3 at Seamless data distribution system

Source Shuttle Radar Topography Mission (SRTM) data products 1 arcsecond

Source for Alaska: USGS Alasaka NED 2 at Seamless data distribution system

Source for Northern Canada and void filling: Natural Resources Canada CDED at Geobase

Source for Northern Canada and void filling: Natural Resources Canada CANVEC at Geobase

Source for Northern Canada and void filling: ASTER

Source of SRTM Void filled for Eurasia: Viewfinder Panoramas

Land cover data sources

Landcover Resolution
Source CONUS: NLCD 20112016 Seamless data distribution system

Source Canada: Natural Resources Canada Circa 2000 at Geobase

Source Europe: Corine landcover at European Environment Agency

Source World: Globcover at European Environment Agency