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

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

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MAPPING REQUIREMENT FOR LANDSLIDE HAZARD ZONATION<br />

1. Aerial mapping <strong>of</strong> critical slopes needs to be done at the <strong>scale</strong> 1:2,<strong>000</strong> and<br />

contour intervals <strong>of</strong> 0.5 meter or better for slope angles less than ten degrees.<br />

2. Aerial mapping <strong>of</strong> critical slopes needs to be done at the <strong>scale</strong> 1:2,<strong>000</strong> and<br />

contour intervals <strong>of</strong> 1.0 meter or better for slope angles more than <strong>10</strong> degrees.<br />

3. Geotechnical map <strong>of</strong> critical slopes needs to be done at the <strong>scale</strong> 1:2,<strong>000</strong> and<br />

contour intervals <strong>of</strong> 1.0 meter.<br />

4. Vegetation map/ land use map in the <strong>scale</strong> <strong>of</strong> 1:2,<strong>000</strong>.<br />

5. Geological maps <strong>of</strong> the area <strong>of</strong> interest in the <strong>scale</strong> <strong>of</strong> 1:50,<strong>000</strong>.<br />

6. Rainfall map in the <strong>scale</strong> <strong>of</strong> 1:<strong>10</strong>,<strong>000</strong>.<br />

7. Seismotectonic map <strong>of</strong> the area <strong>of</strong> interest in the <strong>scale</strong> <strong>of</strong> 1:50,<strong>000</strong>.<br />

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