WMS:Delineation with DEMs: Difference between revisions
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Watershed delineation with DEMs is one of the most common and simplest methods available for automatically characterizing a watershed. Many raster GIS programs have similar capabilities, but WMS has been designed specifically with the purpose of hydrologic and hydraulic modeling in mind. One program that has been developed for delineation on a DEM is the [[WMS:TOPAZ|TOPAZ]] program. A special version of TOPAZ has been created for use with WMS that only requires an elevation grid as input and produces a flow direction grid and a flow accumulation grid as outputs. | Watershed delineation with DEMs is one of the most common and simplest methods available for automatically characterizing a watershed. Many raster GIS programs have similar capabilities, but WMS has been designed specifically with the purpose of hydrologic and hydraulic modeling in mind. One program that has been developed for delineation on a DEM is the [[WMS:TOPAZ|TOPAZ]] program. A special version of TOPAZ has been created for use with WMS that only requires an elevation grid as input and produces a flow direction grid and a flow accumulation grid as outputs. | ||
After defining basins with a DEM the results are converted to a drainage coverage for easier data storage and manipulation. It is also possible to [[WMS: | After defining basins with a DEM the results are converted to a drainage coverage for easier data storage and manipulation. It is also possible to [[WMS:Delineate Basins Wizard|modify an existing delineation]] using [[WMS:Feature Objects|feature objects]]. | ||
==Related Topics== | ==Related Topics== | ||
Revision as of 16:33, 18 January 2013
Watershed delineation with DEMs is one of the most common and simplest methods available for automatically characterizing a watershed. Many raster GIS programs have similar capabilities, but WMS has been designed specifically with the purpose of hydrologic and hydraulic modeling in mind. One program that has been developed for delineation on a DEM is the TOPAZ program. A special version of TOPAZ has been created for use with WMS that only requires an elevation grid as input and produces a flow direction grid and a flow accumulation grid as outputs.
After defining basins with a DEM the results are converted to a drainage coverage for easier data storage and manipulation. It is also possible to modify an existing delineation using feature objects.
Related Topics
- Overview of Basin Delineation with DEMs
- TOPAZ
- Flow Directions and Flow Accumulations
- DEM to Stream Arcs
- Defining Basins
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