Active Archive of Large Floods, 1985-Present

Master Index of Inundation Maps

The Surface Water Record

River Watch

Other Flood Detection Tools

Sample Images and Maps






Recent Flood Mapping Results

Flooding in NE India, July 15, 2017. Red shows current surface water; blue is typical winter conditions; light gray is all previously mapped flooding. Click on dots to retrieve microwave observation of changing river discharge. See also: 090E030N



Sample of Copernicus/ESA Sentinel 1 SAR mapping of flooding in China, July 3, 2017 (red is new water compared to May 28, 2017).



DFO#4475, Uruguay, June 2, 2017

Sample of flood mapping for this event below: Google Earth kmz version.

Uruguay Flood Map 2017

DFO#4474, Sri Lanka, May 24-30, 2017

Sample of flood mapping for this event below: from the DFO Web Map Service. GIS files are also available

Sri Lanka Flood Map

DFO#4473, Russian Republic, May, 2017

Image sample of this flood below, Google Earth view of MODIS-based flood water mapping

Russia flooding 2017

DFO#4472, Tebicuary River, Paraguay, May, 2017

DFO#4471, China (various regions), May 16, 2017

Image sample below, Google Earth view of Copernicus/ESA Sentinel 1-based flood water mapping

China flooding 2017

DFO#4470, Quebec, Canada, May 7, 2017

Image sample below, September 9, 2017/May 7, 2017 comparison using Copernicus/ESA Sentinel SAR information; flood water is red

Canada flooding 2017

DFO#4468, Central US, April 28, 2017

On May 4, Copernicus/ESA Sentinel 1 satellite imaged the levee breaks in Pocahontas, Arkansas (image sample below, water is black)

USA flooding 2017

DFO#4467, Dominican Republic, April 25, 2017

DFO#4466, Bangladesh, April 24, 2017 (Google Earth sample below)

Bangladesh flooding 2017

DFO#4465, Kazahkstan, April 20, 2017 (Google Earth version sample below)

Kazakhstan flooding 2017


Copernicus/ESA Sentinel 1 SAR-based mapping of flooding in Northern California, winter, 2017

Major flash flooding, NW Iran, imaged April 16 and 18, 2017 by Copernicus/ESA Sentinel 1 and NASA MODIS sensors

Sample 1 (with GoogleEarth view below for comparison)

Sample 2 (with GoogleEarth view below for comparison)


DFO # 4464, Northern Argentina

DFO # 4462, Southern Argentina

Tropical Cyclone Debbie-related flooding, April 4, 2017 (DFO # 4461), North coast of North Island, New Zealand

Sample Copernicus/ESA Sentinel 1 SAR composite, April 4/March 11, below.

DFO # 4460, Northern Malawi

DFO # 4459, NE Bangladesh

DFO #4451 from Cyclone Debbie in Australia

(below, based on Copernicus/ESA Sentinel 1 SAR data, March 31, 2017

Also see the DFO Map Server using NRT Global Flood Mapping data (sample below)

DFO #4450 in Peru

March 20 flooding, red, flooding from comparison of March 20 and January 19, 2017 Copernicus/ESA Sentinel 1 SAR data

DFO #4439 in Mozambique


DFO #4432 in southern Thailand and northern Malaysia

DFO #4434, California, USA. Sample of Copernicus/ESA Sentinel 1 SAR results below


Flood Mapping for Hurricane Matthew, October, 2016

Sample of flood mapping in North Carolina displayed via Google Earth

(See also New York Times article)


Flood Mapping for Hurricane Otto, Costa Rica, November 28, 2016

Flood Mapping for New South Wales, October, 2016

Flood Mapping for Iowa, Wisconsin, and Minnesota, August 27, 2016

Flood Mapping for Southern USA, August 1-15, 2016

Flood Mapping for North Korea, September 1-15, 2016

Flood Mapping for Sudan and South Sudan, July-September, 2016

Flood Mapping for Bangladesh, July-August, 2016

Flood Mapping for Bihar, India, July-August, 2016

Flood Mapping for Assam, India, July-August, 2016

Flood Mapping for Myanmar, July, 2016

Special Regional Displays (2017: under construction)

Ganges/Brahmaputra Flood Awareness and Prediction System

Ganges/Brahmaputra Current Flood Conditions

Myanmar Current Flood Conditions


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Creative Commons License
This work, web site, and associated data are by G. R. Brakenridge and A. J. Kettner and are provided here under the terms of a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. With attribution, they can be used and shared freely for non-commercial purposes. By permission, which is freely granted, they can also be used for commercial purposes. Please consult the Creative Commons license for details.




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