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High Resolution 1:10,000 scale Mapping Strategy of Multi ... - NDMA

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The combined threat from these major disasters varies from region to region and<br />

district to district. Hence it has become imperative to prepare detail maps <strong>of</strong> the country<br />

in order to make a strategy for mitigation and management. Accordingly, it has been<br />

decided to consider mapping at 1: <strong>10</strong>,<strong>000</strong> <strong>scale</strong> which should meet the requirement <strong>of</strong><br />

<strong>NDMA</strong> in particular. Further, for the cities and towns, and special areas, maps at<br />

1:2,<strong>000</strong> <strong>scale</strong> has been suggested.<br />

MULTI-DISASTER PRONE AREAS<br />

In the last decade, statistical modeling <strong>of</strong> natural disasters in potentially affected<br />

areas by GIS has become a major topic <strong>of</strong> analysis and research. Despite some basic<br />

approach based on the “weight <strong>of</strong> evidence”, some unsolved questions are still under<br />

discussion. The disastrous effects <strong>of</strong> disasters on affected communities are well known,<br />

and there is a need to better understand the causes and the hazards contributions <strong>of</strong><br />

the different events related to earthquakes, floods, urban floods, flash floods, droughts<br />

etc. The classification <strong>of</strong> disasters has been shown in Table 2.1. For more details ,<br />

please refer to Annex- II.<br />

(<strong>10</strong>0%) Natural<br />

Some human<br />

influence<br />

Mixed natural<br />

and human<br />

influence<br />

Little natural<br />

influence<br />

(<strong>10</strong>0%) Human<br />

---� Each column indicates increasing degree <strong>of</strong> human influence to cause the hazard<br />

listed below.<br />

Earthquake Flood Landslides Crop disease Armed conflict<br />

Tsunami Drought Subsidence Insect<br />

infestation<br />

Land mines<br />

12

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