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How to map Cliff or Identify cliff using a DEM ??
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on Dec 2, 2010
on Dec 5, 2010 by m.cain
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I am looking for a tool or a methodology to identify or map a Cliff using a DEM in ARCGIS.
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Dec 5, 2010 11:16 PM
Have you considered slope (i.e., Spatial Analyst Tools > Surface > Slope --> input your DEM raster, specify your output raster name, select whether you want slopes in degrees or as a percentage, and whether you want to exaggerate the elevation by a particular Z-factor)? Your cliff would show up among the steepest slopes. Choose an appropriate colour ramp or reclassify your values to whatever slope ranges you wish to categorize them as.
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