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国际数据资源
- Landsat @ USGS
- MODIS data @ NASA
- Earth science data and products @ Global Land Cover Facility
- Free Spatial Data @ DIVA-GIS
- GIS Data @ University of Minnesota Libraries
- GIS Data @ Stanford Geospatial Center
- GIS Data @ MIT Libraries
- GIS DATA List @ Grossmont College
- True Marble global dataset (250m)
- Public Land Survey System (PLSS) Data
- Global Basemap Layers
- Free GIS Data @ geocomm.com
- Geospatial Data List @ Virginia Polytechnic Institute and State University
- 世界银行数据