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Floods

Mapping floodwater extent for active floods is critical for local and regional officials and for disaster relief organizations that need to ascertain where to focus their efforts. LANCE provides data to the Dartmouth Flood Observatory and the NRT Global MODIS Flood Mapping initiative.

Potentially useful data sets: Corrected Reflectance True Color and Bands 7-2-1, Land Surface Reflectance Bands 1-2-1, AIRS precipitation (day and night). In Worldview, LANCE imagery can be overlaid with the following data sets from the Socio Economic Data and Applications Center (SEDAC): Flood Hazard Frequency and Distribution, Flood Hazard-Mortality Risk and Flood Hazard Economic Risk.

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Read the disclaimer for more information about using the data.

 
This image shows flooding in Mozambique. By January 2013, the Limpopo River had spilled over its banks with water spanning more than 10 kilometers in certain areas. Read more at NASA's Earth Observatory.
 

Downloadable NRT data related to Floods

MODIS / Aqua

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
BrowseComments
MYD09GAL2G Light Surface Reflectance – Daily 500m and 1km17.37L2G Surface Reflectance BrowseBands 1-2-1
MYD09GQL2G Light Surface Reflectance – Daily 250m18.82L2G Surface Reflectance BrowseBands 1-2-1

MODIS / Terra

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
BrowseComments
MOD09GAL2G Light Surface Reflectance – Daily 500m and 1km17.48L2G Surface Reflectance BrowseBands 1-2-1
MOD09GQL2G Light Surface Reflectance – Daily 250m18.91L2G Surface Reflectance BrowseBands 1-2-1

AIRS / Aqua

Product
(FTP download link)
Description
(Global Change Master Directory link)
Volume
(GB/day)
Browse
L2 AIRX2SUP precip estimate N/AN/A