Prompt
What dataset should I use for geospatial analysis?
Latest observation
Oct 16, 2026
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It depends on what geospatial question you’re trying to answer. There isn’t one best dataset for all geospatial analysis.
Here’s a practical way to choose:
1) Start with your use case
- Mapping locations / basemaps: OpenStreetMap, Natural Earth
- Population / demographics: Census data, WorldPop, GPW
- Land use / land cover: ESA WorldCover, MODIS, Landsat, Sentinel
- Elevation / terrain: SRTM, ASTER GDEM, Copernicus DEM
- Climate / weather: ERA5, WorldClim, PRISM
- Administrative boundaries: GADM, geoBoundaries
- Transportation / routing: OpenStreetMap, government transport datasets
- Environmental / remote sensing: Landsat, Sentinel-2, MODIS
2) Choose based on key criteria
- Spatial resolution: coarse vs fine detail
- Temporal resolution: snapshots vs time series
- Coverage: local, national, global
- Accuracy and provenance: official/government vs crowdsourced
- Format: raster, vector, point data, tiles
- Licensing: open use vs restricted
3) Common good defaults
If you’re just starting:
- Base geography: OpenStreetMap + Natural Earth
- Boundaries: geoBoundaries
- Global analysis: WorldPop, ESA WorldCover, Copernicus DEM
- Satellite imagery: Sentinel-2 or Landsat
- Climate: ERA5 or WorldClim
4) Best dataset depends on analysis type
- Site suitability: land cover, elevation, roads, population, protected areas
- Hotspot analysis: event points + population exposure + admin boundaries
- Change detection: multi-temporal satellite imagery
- Accessibility: road network + travel time + terrain
- Spatial prediction / ML: features like climate, terrain, land cover, built environment
If you tell me:
- your topic,
- your study area,
- whether you need raster or vector, and
- your time period,
I can recommend the best specific dataset(s) for your project.