Techniques for flood hazard zonation and vulnerability ... - NDMA
Techniques for flood hazard zonation and vulnerability ... - NDMA
Techniques for flood hazard zonation and vulnerability ... - NDMA
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3/17/2010<br />
Tools/<strong>Techniques</strong> Used <strong>for</strong> Flood Hazard Zonation<br />
<strong>and</strong><br />
Vulnerability Mapping<br />
• Hydrological Data:<br />
The success or failure of any Flood Frequency Analysis technique<br />
depends largely on the authenticity of hydrological data <strong>and</strong> the<br />
correctness of hydrological data is dependent on the measurement<br />
system by virtue of which this data is gathered/recorded. Such data<br />
include: rainfall, runoff, discharge/river flow/stream flow etc. (Used at<br />
both Provincial <strong>and</strong> District levels).<br />
• Past /Historical Flood Damages Record:<br />
Records<br />
of past<br />
<strong>flood</strong><br />
damages due<br />
to <strong>flood</strong>s<br />
in<br />
certain river<br />
system/urban area/hill torrent area help in the planning of future <strong>flood</strong><br />
control works/embankments/bunds/spurs/new<br />
infrastructure in<br />
the<br />
cities etc. (Used at National, both Provincial <strong>and</strong> District levels).<br />
4
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