The a Data Center in NASA’s Earth Observing System Data and Information System (EOSDIS) hosted by CIESIN at Columbia University provides a great resource for global layers on impervious surface and settlement extent.
You can view and download:
- Impervious Surface Percentage (GMIS)
- Standard Error of Impervious Surface Percentage
- Human Built-up and Settlement Extent (HBASE)
- Probability of HBASE
to explore the datasets for your study area go here:
http://sedac.ciesin.columbia.edu/mapping/gmis-hbase/explore-view/
in case you like to download the actual data in various formats please login here:
http://sedac.ciesin.columbia.edu/mapping/gmis-hbase/download-view/
