[gdal-dev] Terrain Analysis

[Roa Carvajal, Camila]

Hi,

Recently I used gdaldem to compute slope and aspect from a Digital
Elevation Model. In the past I've used SAGA GIS to compute a more extensive
list of terrain parameters but it uses a large amount of memory for heavy
raster files. So I'm looking for a program (or scripts) that does the
computation with GDAL or an associated project. So far I found some of the
computations are implemented in Grass Gis.

I would appreciate any information you can provide.

This is the list of terrain parameters that SAGA computes (
https://saga-gis.sourceforge.io/saga_tool_doc/2.1.3/ta_compound_0.html):


   - Analytical Hillshading
   - Slope
   - Aspect
   - Plan Curvature
   - Profile Curvature
   - Convergence Index
   - Closed Depressions
   - Catchment Area
   - Topographic Wetness Index
   - LS-Factor
   - Channel Network Base Level
   - Channel Network Distance
   - Valley Depth
   - Relative Slope Position

Thanks,

Camila Roa
Graduate Research Assistant @ GCLab
University of Tennessee
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20230221/a1c6018c/attachment.htm>