DEM to Slope

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13
03-01-2011 03:24 AM
PeterMelle
New Contributor
Hello,

I'm trying to create a slope map using a DEM file. I used the spatial analyst> surface> slope function. I wanted the map to be in percent slope/rise and not degrees. When I do this, the map it creates looks right, but the units are way off and the ranges for values are extremely high, all the way to 440? I tried to make sure that the DEM and the layer I was working both had the same coordinate system, but at this point I am lost and not sure what to do. My other question is that would it matter if I use 3D Analyst or Spatial Analyst, just out of curiosity?
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13 Replies
myname
by
New Contributor III

ArcGIS support in percent slope/rise and  degrees, toturial here: how to calculate slope map from dem in arcgis - YouTube 

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JennieCatalano1
New Contributor III

Link leads to dead end.

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Robert_LeClair
Esri Notable Contributor

Here's an alternative that may work better - https://www.youtube.com/watch?v=4cZwCx5R4pE

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JennieCatalano1
New Contributor III

Thank you! I’ll check it out.