http://www2.jpl.nasa.gov/srtm/ Public Data Distribution ftp://e0dps01u.ecs.nasa.gov http://www.ncor.ntu.edu.tw/ODBS/mgd/ GLOBE v1.0全球30弧秒陆地地形资料 Global Land One-kilometer Base Elevation Data Set, NOAA National Geophysical Dat a Center, NGDC, 1998 ftp://edcftp.cr.usgs.gov/pub/data/gtopo30/global/ 水深资料库 http://www.ncor.ntu.edu.tw/ODBS/depth/download/ depth_download.html#numerical_data glcf ftp://ftp.glcf.umiacs.umd.edu/ usgs http://walrus.wr.usgs.gov/infobank/gazette/html/regions/gl.html etopo2 http://pc12-c714.uibk.ac.at/GPLIGC/download/digital_elevation_model/etopo2/ Global GIS Data Sets http://phobos.lab.csuchico.edu/hosted/sustainable/gis_data/global_data/ global.html Digital Elevation Model Data Availability http://www.fugawi.com/docs/ded.html GeoGratis: Free Links http://geogratis.cgdi.gc.ca/clf/en?action=freelinks -- ============================= Boundary representation is not necessarily authoriative. ============================= --

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