Active Archive of Large Floods, 1985-Present

Master Index of Inundation Maps

World Atlas of Flooded Lands

River Watch

Other Flood Detection Tools

Sample Images and Maps






World Atlas of Large Flood Events 1985-2002

The information presented in this atlas is derived from a wide variety of news, governmental, instrumental, and remote sensing source. It is designed in order to better understand the evolution of extreme flood events since 1985. The archive is "active" because it is currently updated (with current and past events). For additional information concerning how these maps and tables are created, please review the Archive Notes.

Because this database combines different information source and cover 18 years, it can not be totally consistent. This question of data consistency is recursive with this kind of database. Usually this question of consistency is avoided or quickly presented. The originality of this project is to acknowledge the data inconsistency, to make the user aware of the reliability of the data. This concept is part of a research project.

For more information concerning this project, please contact Sebastien.Caquard@Dartmouth.edu


Contents of the Atlas

Part I - Evolution of the floods since 1985

Flood Number

Interannual evolution

Map of the floods number


Flood Duration

Interannual evolution

Seasonal evolution

Map of the flood duration


Flood Seasonality

Interannual and Seasonal evolution

Map of the flood seasonality


Flood Causes

The different causes

Interannual evolution

Map of the flood causes


Recurrence interval

Map of recurrence interval anecdotal


Severity class




Part II - Consequences of these floods


Interannual average evolution or Sum/Max

Seasonal evolution total or Average/Median

Map of the flood fatalities



Interannual average evolution or Sum/Max

Map of the people displaced



Interannual average evolution or Sum/Max.

Map of economical cost




More to come...






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