Flood Overview Map. (Source: JRC
This flood is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.
Updated: this report is based on update 249.
- Flood magnitude: 6.63
- Duration: from 03/03/2012 00:00 UTC to 07/03/2012 23:59 UTC
- Impact: 65 killed and 0 displaced
- Primary cause of floods: Tropical Storm Irina
- Severity: class 2 (i.e. this is an extreme event with an estimated recurrence interval greater than 100 years)
The alert score is based on the reported death and displaced. Red = 1000 or more
people killed or 800000 or more people displaced. Orange = 100 or more people killed
or 80000 or more displaced.
- Magnitude: 6.63
- Source: DFO
- Location (latitude/longitude): -18.968, 46.943
- Date: 03/03/2012 to 07/03/2012
Current surface water and potential flooded areas map (radar imagery)
The Global Flood Detection System of JRC uses passive microwave remote sensing to observe
surface water for large floods. Statistical anomalies in surface water are shown
as red areas, which correspond roughly to the flooded area. Extreme rainfall also
causes anomalies, but is masked by the yellow layer (TRMM rainfall).
Microwave signals are not affected by cloud coverage.
Indicative flood map based on passive microwave remote sensing. (Source: JRC
Current surface water and potential flooded areas map (optical imagery)
The Real-time MODIS Flood Map system of NASA uses optical remote sensing to observe
surface water for large floods, provided there is no cloud coverage.
MODIS Automatic Flood Map. NASA Goddard's Office of Applied Science, in collaboration with Dartmouth Flood Observatory, is working to operationalize near real-time global flood mapping using available satellite data resources (Source: NASA
Accumulated rain 24hrs (TRMM) map
Flash floods and landslides cannot be recorded by microwave remote sensing. These
events are caused by extreme rainfall in susceptible mountainous areas. The map
below shows the extreme rainfall recorded by the Tropical Rainfall Monitoring mission
in the last 24h (mm/24h).
Map of accumulated rainfall. Accumulated rainfall observed from the TRMM satellite (Source: NASA
Timeline of revisions
For accessing reports of previous advisories, please click on the advisory number in the table below.
|1||Magnitude 6.63||65 killed and 0 displaced ||
|249||Magnitude 6.63||65 killed and 0 displaced ||
For a full list of available products related to this event, please refer to the
GDACS Data Resources page.
About the data
Information related to the flood has been collected from official and media reports
by the Dartmouth Flood Observatory.
While we try everything to ensure accuracy, this information is purely indicative and should not be used for any decision making without alternate sources of information. The JRC is not responsible for any damage or loss resulting from the use of the information presented on this website.