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Landslides triggered by Hurricane Mitch in El Salvador


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2013-05-16 14:07:12


This cover contains the outlines of landslides and debris flows caused by heavy rainfall associated with Hurricane Mitch in October-November 1998. The landslides and debris flows shown in this coverage were mapped using 1:40,00-scale and 1:15,000-scale black-and-white aerial photographs. Much of the photography was taken a few months after the storm, but additional photography was taken in late 2000. The photographs were visually examined using 4-X mirror stereoscopes, and the landslides were plotted by hand on mylar overlays that were registered to topographic maps. The landslides were plotted on 1:25,000-scale maps where these high-quality maps were available; for other parts of the country, the landslides were plotted on 1:50,000-scale [...]


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The coverage shows the distribution of slope failures and the associated deposits caused by Hurricane Mitch in El Salvador. The cover included maps of these features in widely separated parts of the country. The maps provide an inventory of these features and also contain a few recent landslides that predate the hurricane. When data from this inventory is combined with geotechnical data on the physical properties of material on hill slopes, the hillslope form, and rainfall intensity and duration information, this coverage can be used as a basis for evaluating landslide susceptibility in similar areas of the country.
Map showing study areas and aerial photograph coverage, 585x439 pixels, 16k bytes.
Map showing study areas and aerial photograph coverage, 585x439 pixels, 16k bytes.




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Added to Sciencebase on Sat Nov 16 13:42:26 MST 2013 by processing URL <b>landslides.xml</b> in item <a href=""></a> <br />

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