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Old 05-21-2003, 02:11 PM
mooreci
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ArcView 3 Spatial Analyst Scripts for Estimating subbasin width and slope

General DEM elevation data processing tools for ArcGIS 8x are available from the following site http://moose.cee.usu.edu/taudem/taudem.html. I understand that the COE is working on an update to HEC-GeoHMS that will work within ArcGIS 8x.

I have been told that the Profile Extractor program available from the ESRI website is a useful tool for computing overland flow length and slope from DEMs or TINs.

Charles I. Moore, P.E.
MOORECI@CDM.COM
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Old 05-21-2003, 02:12 PM
wmedina
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Re: ArcView 3 Spatial Analyst Scripts for Estimating subbasin width and slope

It has been a while since I created an Avenue interface as part of my research for the University of Maryland College Park. I send it to some of you that requested. It is not tested beyond my research and knowledge of SWMM and it delineates subcatchements and streams from DEM. It splits each catchment in two based on the main channel and gives you a width based on the skewed areas.

My reasearch is on how to model changes in land use on a continuos run. I am using RUNOFF and TRANSPORT blocks. Each study area was divided in several smaller areas and the interface generated a summary table for each one first with characteristics (longest flow path, width among others) and the changes in land use for each one. From there severla simlulations have been done using different models. The first part of the p[roject was done about a year ago and it involved the interface.

Lastest updates to it have been adding new options for reading the output files and creating summary tables of discharges and pollutant loadings, mainly post processing tools. Therefore the preprocessing part has not change that much.

William Medina
wmedina@WAM.UMD.EDU
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