USGS Data

美国地质调查局Landsat、MODIS等卫星影像下载

USGS Data的最新网址是：https://earthexplorer.usgs.gov/

简单的说，USGS Data是一个以 U.S. Geological Survey,USGS,National Mapping Division,NMD,USA,
United States,Territories,Antarctica,cartographic,cartography,geographic,
geography,geospatial data,geographic information system,GIS,mapping,maps,
aerial photographs,satellite imagery,digital elevation model,
digital raster graphic,digital orthophoto,topographic,topography,
geographic names,earthscience,data,geospatial metadata,geospatial data standards,
landsat,GNIS,NAPP,DEM,DRG,DOQ,NSDI,Earth Explorer, EarthExplorer 为主题的网站。