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






Large Scale Flood Hazard Maps

The Dartmouth Flood Observatory (Department of Geography, Dartmouth College, Hanover, NH 03755 USA) can now provide high quality, large scale flood hazard maps in digital (.pdf) and paper format. Coverage is global.

The maps extend 1degree latitude x 2 degrees longitude, and are in local UTM zone projections, at 1:250,000 scale, WGS 84 datum. There is a superimposed 10 km gray line graticule. Custom designed maps are also available at different scales or in different projections, as per request.

Our maps commonly include a color shaded relief base that is derived from the NASA SRTM topographic data (90 m posting interval). They include standard hydrography (normal surface water) as imaged by MODIS.

Flood hazard is depicted as in the on-line global series (see Atlas of Global Flood Hazard, at this web site). The areas subject to flooding are based on, at least, 5 years of satellite remote sensing, up to and including flood events in 2004.

Data sources are primarily the MODIS sensors aboard the Terra and Aqua satellites. Other satellites are used locally, including Landsat and Radarsat. The maps illustrate in much greater detail what is provided online at a reduced scale in reduced resolution, jpeg format at the Flood Observatory web site.

Contact Brakenridge@Dartmouth.edu or Elaine.Anderson@Dartmouth.edu for more information or to order. Please specify area of interest and including the total geographic coverage needed.

Price Information

All prices include shipping world-wide and cover the costs of map production and delivery.

US $450 (2 degree latitude by 4 degree longitude coverage, provided as four 1 degree x 2 degree map sheets)

INCLUDES: Two map copies (provided as 8 sheets, total), and ftp or cd-rom media digital copies in pdf format.


US $95 (Additional copies, 8 sheets total)

Below is a small portion of one map.




Direct Questions to:
Bob Brakenridge
Elaine Anderson


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