geo spatial data and its types.pptx
- 2. Contents • What is geospatial data • Types • Examples
- 3. What is geospatial data? ● Information about the location and shapes of geographic features and the relationship between them, usually stored as coordinates and topology
- 4. Types of Geospatial data ● Vector data ● Raster data
- 5. Vector data
- 6. Vector data
- 7. Vector data
- 8. Raster data Raster data is pixel-based or gridded cells that are identified according to row and column
- 9. Attribute data Examples of geospatial data: 1. Vector and attributes Descriptive information about a location such as points, lines, and polygons Vector data
- 10. Examples of geospatial data: 2. Point clouds A collection of co-located charted points that can be recon textured as 3D models.
- 11. Examples of geospatial data: 3. Raster and satellite imagery High-resolution images of our world, taken from above
- 12. Examples of geospatial data: 4. Census data Released census data tied to specific geographic areas, for the study of community trends
- 13. Examples of geospatial data: 5. Cell phone data Calls routed by satellite, based on GPS location coordinates
- 14. Examples of geospatial data: 6. Drawn images CAD images of buildings or other structures, delivering geographic information as well as architectural data.
- 15. Examples of geospatial data: 7. Social media data Social media posts that data scientists can study to identify emerging trends