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Digital Soil MappingTerrain Classification Experiment 2: GRASS, R, and the raster packageSubmitted by dylan on Tue, 2011-05-24 16:37.
Quick post on terrain classification, based on some trouble folks were having with a previous example on Windows. With the spgrass6 package, raster stacks are created by loading several GRASS files at once:
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Terrain Classification ExampleSubmitted by dylan on Tue, 2011-05-24 16:22.
New R Package 'aqp': Algorithms for Quantitative Pedology [updates]Submitted by dylan on Mon, 2010-08-09 16:37.
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Using R and r.mapcalc (GRASS) to Estimate Mean Topographic CurvatureSubmitted by dylan on Tue, 2010-08-03 20:51.
Recently I was re-reading a paper on predictive soil mapping (Park et al, 2001), and considered testing one of their proposed terrain attributes in GRASS. The attribute, originally described by Blaszczynski (1997), is the distance-weighted mean difference in elevation applied to an n-by-n window of cells:
Other InformationSubmitted by vbullard on Fri, 2009-06-12 17:04.
GIS and Digital Soil Survey ProjectsSubmitted by vbullard on Fri, 2009-06-12 17:02.
My lab produces a variety of interpretive maps that have been repackaged from Digital Soil Survey and other geographic datasets. |