Active Archive of Large Floods, 1985-Present

Master Index of Inundation Maps

Space-based Atlas of the Earth's Changing Surface Water

River Watch

Other Flood Detection Tools

Sample Images and Maps

Ganges/Brahmaputra Regional Flood Management Information System






Space-based Atlas of the Earth's Changing Surface Water

The Atlas illustrates inland and coastal flooding observed by orbital remote sensing. Each map in the Atlas extends approximately ten degrees in latitude and longitude and records actual floods as imaged since 1985 (most intensively, since late 1999). Inundation limits for each year are combined and shown as one map color in the online map versions. Surface water detected by NASA sensors during non-flood intervals provides a standard hydrography for comparison purposes.

To access a browse version of the Atlas, open the Global Index Map and click on the appropriate 10-degree tile.

.Sample Regional Maps (other regions can be requested)

United States

Central America

Series of Mekong Basin Flood Hazard Maps for individual years 2000 through 2006

2000, 2001, 2002, 2003, 2004, 2005, 2006





This work is made possible by data obtained by NASA, JAXA, ESA, and other space agencies, and by funding support from the Earth Surface and Interior Focus Area and the Applied Sciences Program, Science Mission Directorate, NASA, and from the European Commission, through the GDACS project, Joint Research Centre, Ispra, Italy.


©2008 Dartmouth Flood Observatory