Active Archive of Large Floods, 1985-Present

Master Index of Inundation Maps

World Atlas of Flooded Lands

Satellite River Watch

Other Flood Detection Tools

Sample Images and Maps






Wetlands Monitoring with Quikscat and MODIS

Modis hydrography is providing an unprecedented dynamic look at the world's large seasonal wetlands. However, cloud cover limits temporal sampling. The Dartmouth Flood Observatory uses Quikscat polarization ratio data provided by Son Nghiem at JPL/CALTECH to image and measure wetland flooding and drying at a weekly interval and without cloud cover inteference.


The Sudd, Southern Sudan (Nile Basin)
Barotse Plain and Chobe Swamp, Eastern Angola and Western Zambia (Zambezi Basin)
Bahr Salamat Floodplains, Chad
Inner Niger Delta, Mali


Khorat Plateau, Thailand

E. Bangladesh

North America

Eastern Arkansas - Mississippi River Valley, USA
Sacramento and San Joaquin Valleys, California, USA

South America

Llanos De Mojos, Bolivia (Amazon Basin)
Rio Araguaia Floodplain, Brazil (Rio Tocantins)






Direct Questions to:
Bob Brakenridge
Elaine Anderson

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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.


©2007 Dartmouth Flood Observatory