ncsu-geoforall-lab / geospatial-modeling-course

NCSU GIS/MEA582: Geospatial Modeling and Analysis Course
http://ncsu-geoforall-lab.github.io/geospatial-modeling-course
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Explain value 100 in eroding DEM expression #24

Open wenzeslaus opened 8 years ago

wenzeslaus commented 8 years ago

Provide reasoning for the value 100 in Compute new DEM with erosion carved-in in the Erosion modeling (hydrology_erosion.html) assignment.

r.mapcalc "elev_erodedb_1m = elev_lid792_1m-(soillossbare_1m/100.)"

Additionally, consider changing the value.

hmitaso commented 8 years ago

This was an ad hoc value purely for visualization purposes- feel free to change it, the proper value along with the units may be in the related pdf or in the erosion paper with Michael Barton (Isaac spent some time figuring it out for different conditions)

On Wed, Apr 13, 2016 at 3:42 AM, Vaclav Petras notifications@github.com wrote:

Provide reasoning for the value 100 in Compute new DEM with erosion carved-in in the Erosion modeling (hydrology_erosion.html) assignment.

r.mapcalc "elev_erodedb_1m = elev_lid792_1m-(soillossbare_1m/100.)"

Additionally, consider changing the value.

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Helena Mitasova Professor Department of Marine, Earth and Atmospheric Sciences North Carolina State University 1125 Jordan Hall NCSU Box 8208 Raleigh, NC 27695-8208 http://www4.ncsu.edu/~hmitaso/ http://geospatial.ncsu.edu/

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