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0 \| Gismo


1 \| OpenStreetMap


2 \| Terrain


3 \| More

Terrain Analysis

Use this component to perform the following terrain analysis types:
-
- Slope
- Grade
- Aspect
- Elevation
- Visibility
- Hillshade
- TRI (Terrain Ruggedness Index by Riley)
- TRI categories (Terrain Ruggedness Index categories by Riley)
- SRF (Surface Roughness Factor by Hobson)
- TPI (Topographic Position Index)
- Mean curvature
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Component mainly based on:
"DEM Surface Tools for ArcGIS", Jenness Enterprises, 2013.
"How Hillshade works" article from Esri Developer Network
"How to calculate Topographic Ruggedness Index in ArcGIS Desktop" article from gis.stackexchange.com
"Terrain Roughness – 13 Ways" article from gis4geomorphology.com
TopoToolbox "roughness" function by Wolfgang Schwanghart
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http://www.jennessent.com/downloads/DEM%20Surface%20Tools%20for%20ArcGIS_A4.pdf
http://edndoc.esri.com/arcobjects/9.2/net/shared/geoprocessing/spatial_analyst_tools/how_hillshade_works.htm
http://gis.stackexchange.com/a/6059/65002
http://gis4geomorphology.com/roughness-topographic-position
https://github.com/wschwanghart/topotoolbox/blob/master/@GRIDobj/roughness.m
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Provided by Gismo 0.0.3