List of Various GIS Data Resources
- USGS | Earth Explorer - Various maps, aerial imagery, satellite imagery, mostly free, registration is required.
- ESRI | ArcGIS OpenData - Various datasets, free, registration is required.
- Openstreetmap - Various maps, everyone contributes, free, registration is NOT required.
- NASA | SEDAC - Various datasets, free, registration is NOT required.
- NSF | Opentopography - Topography datasets, free, registration is NOT required.
- NASA | NEO - Satellite imagery, free, registration is NOT required.
- ESA | Copernicus - Satellite imagery, free, registration is required.
- IPUMS | Terrapop - Environmental datasets, free, registration is required.
- UN | FAO - Various satellite imagery, free, registration is required.
- ISCGM | Global Maps - Various datasets, free, registration is NOT required.
- NOAA | CLASS - Various datasets, free, registration is required.
- NASA | EarthData - Various high resolution satellite imagery, free, registration is required.
- INPE | DGI - Satellite imagery of limited areas, free, registration is required.
- JAXA | EORC - DSM data, free, registration is required.
- NOAA | Coast - Various datasets, satellite imagery, free, registration is NOT required.
- BELSPO | VITO - Low resolution satellite imagery, free, registration is required.
- ESA | LandCover - Various datasets, free, registration is required.
- OpenAerialMap - Aerial imagery, everyone contributes, free, registration is NOT required.
- HGM | Atlas - Aerial imagery, various maps, free, registration is NOT required. AREA SPECIFIC: TURKEY
- Digitalglobe - High resolution satellite imagery, paid, registration is required.
- EOS - High resolution satellite imagery, LIDAR, paid, registration is required.