Active Archive of Large Floods, 1985-Present

Master Index of Inundation Maps

The Surface Water Record

Satellite River Discharge Measurements

River Watch

Other Flood Detection Tools

Sample Images and Maps






Flood Observatory Products and Data Services


This page under construction, June 1, 2015.

DFO began its work in 1993 using ESA ERS-1 SAT data to map the Great Flood of the Upper Mississippi Valley, USA. We have employed a variety of sensors since then to map floods. See Rapid Response Inundation Maps for many of the results. Some results are also shown below.

Example: late 2011 Thailand flooding

2011 Thailand Powerpoint Time Series

Recent Flood Mapping

2014 Bolivia Event #4117

2014 Paraguay and Brazil, Event #4150 (North)

2014 Paraguay and Brazil, Event #4150 (South)

2014 Amazonas, Brazil, Event #4159

2014 Bihar, India, Event #4174

2014 Bangladesh, Event #4178

2014 South Sudan, Event #4164

2014 Pakistan, Event #4179

2014 Ethiopia and Somalia, Event #4201

2014 Mexico, Event #4203

Experimental or Under Construction Displays (updated daily)

Freshwater Discharge Into The Arctic Ocean

Latin American Current Surface Water at GeoSUR

Latin America Flood Detection

Southern Africa Flood Detection

Southern Europe and Northern Africa Flood Detection

Australia Flood Detection

Ethiopia Surface Water Monitoring

Mozambique Surface Water Monitoring

Ganges-Brahmaputra Surface Water Monitoring

Indus Basin Surface Water Monitoring

Dynamic Surface Water Maps (floods, droughts, lakes and reservoirs, and the coastal zone)

See also other projects and data products



Some Other Sample Results and Services


Damaging flooding in the Pakistani Punjab, sample view, September 8, 2014. See also Flood Event display.

Sringar flooding

Damaging flooding in the Sindh, Pakistan, sample view, September 21, 2014. See also Flood Event display.


Sample of drought (reduced surface water) mapping in the Central USA, Summer, 2012 using NASA MODIS data.. Yellow shows new dry land. See appropriate sheets of the Surface Water Record when droughts are underway. As well, the runoff displays above may be used to look for areas of surface water anomalies. In 2014, we will be moving increasingly to Google Earth and Google Maps platforms.





This work is made possible by data acquired by NASA, the Japanese Space Agency, and the European Space Agency, and funding support from NASA and the European Commission, through the Global Disaster Alert and Coordination System (GDACS) project, Joint Research Centre, Ispra, Italy. The Observatory was founded in 1993 at Dartmouth College, Hanover, NH USA and moved to the University of Colorado, INSTAAR, CSDMS in 2010. The institutional support of both universities is gratefully acknowledged.

http://floodobservatory.colorado.edu/Flood Observatory