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On the 29th of
August 2005 Hurricane Katrina hit the Gulf coast of the
United States, wreaking havoc in the states of Louisiana,
Mississippi and Alabama. Many areas of New Orleans became
flooded and winds of more than 100mph (160km/h) battered
the city.
The first DMC image of the area was acquired by NigeriaSat-1
on Friday 2nd September 2005 and this was processed and
delivered to the United States Geological Survey. The image
covers an area of 400km wide by 220 km, showing the Mississippi
Delta and New Orleans as well as coastal regions eastwards
to Gulfport, Biloxi and beyond.
Imagery
Area 2 above, shows a close
up of the New Orleans area. Vegetation is detected by the
near infrared band, which is invisible to the human eye,
this is shown as red in these false colour images. Where
Hurricane Katrina has devastated the area, vegetation has
been blown away or flooded leaving a brown colour.
The flooded areas of New Orleans can be seen as dark areas
with lighter lines indicating the roofs of properties.
A column of smoke can be seen blowing westwards from burning
buildings in the wharf area, and the white roof of the
stadium, where many people took shelter, can be seen through
the smoke.
Response
French company SERTIT produced 3 crisis
maps using NigeriaSat-1 data
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Reference Map - Showing
map extents of spacemap products (1/500 000).This map
was optimized for DinA0 printing.
Click
here to download (8.58 Mb) |
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Product 18 - NigeriaSAT, DMC International crisis
natural colours space map (1/500 000). This map was
optimized for DinA0 printing.
Click
here to download (4.86 Mb) |
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Product 20 - Flood impact map over the New Orleans
to Mobile area using NigeriaSAT, DMC International
data from 02 September 2005 (1/350 000). This map was
optimized for DinA0 printing.
Click
here to download (9.11
Mb) |
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