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Wednesday
14Oct2009

TauDEM software: for your hydro modeling needs

This was recommended to me recently by Orien; he is using it to create topographic indices to use as ancillary data in an object-based classification of palustrine wetlands in the foothills of the Sierra Nevada. These wetland sites are terrifically important for rails, and mapping them efficiently is a challenge.  Topographic information is proving useful in the classification, and Orien used this software rather than the ArcGIS hydro modeler suite.

From David Tarboton at Utah State: Terrain Analysis Using Digital Elevation Models (TauDEM) is a set of tools for the analysis of terrain using digital elevation models. TauDEM currently provides numerous capabilities that expand on the ESRI suite including (more listed on website):

  • Computation of flow directions and slopes;
  • Contributing area using single and multiple flow direction methods;
  • Multiple methods for the delineation of channel networks that include curvature;
  • Delineation of watersheds and subwatersheds draining to each stream segment; and
  • Specialized functions for terrain analysis, including wetness indices, accumulation measures, and downslope and upslope functions.

Reader Comments (2)

Hi,

how can i do download free the ArcGIS package online in this website?

cheers,

sia

October 19, 2009 | Unregistered CommenterSia

You can't download ArcGIS for free unfortunately - you have to go through the site licensing arrangements at your particular campus or organization. The TAUDEM software I think is free.

October 20, 2009 | Registered CommenterMaggi

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