Model:AgDegNormGravMixPW: Difference between revisions
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|Country=USA | |Country=USA | ||
|Email address=parkerg@illinois.edu | |Email address=parkerg@illinois.edu | ||
|Phone=217 244-5159 | |Phone=217 244-5159 | ||
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{{Model identity | {{Model identity | ||
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|Spatial dimensions=1D | |Spatial dimensions=1D | ||
|Spatialscale=Watershed-Scale | |Spatialscale=Watershed-Scale | ||
|One-line model description=- | |One-line model description=Ebook: calculator for aggradation and degradation of sediment mixtures in gravel-bed streams | ||
|Extended model description=-- | |Extended model description=This program computes the time evolution of the long profile of a river of constant width carrying a mixture of gravel sizes, the downstream end of which has a prescribed elevation. In particular, the program computes the time evolution of the spatial profiles of bed elevation, total gravel bedload transport rate and grain size distribution of the surface (active) layer of the bed. The river has constant width. The upstream point, at which sediment is fed, is fixed in the horizontal to be at x = 0. The vertical elevation of the upstream point may change freely as the bed aggrades or degrades. The reach has constant length L, so that the downstream point is fixed in the horizontal at x = L. This downstream point has a user-specified initial elevation hdI. | ||
Gravel bedload transport of mixtures is computed with a user-specified selection of the Parker (1990), or Wilcock-Crowe (2003) surface-based formulations for gravel transport. Sand and finer material must first be excluded from the grain size distributions, which then must be renormalized for gravel content only, in the case of the Parker (1990) relation. In the case of the Wilcock-Crowe (2003) relation, the sand is retained in the computation. | |||
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{{Model technical information | {{Model technical information |
Revision as of 14:57, 19 October 2010
Contact
Name | Gary Parker |
Type of contact | Model developer |
Institute / Organization | University of Illinois at Urbana-Champaign |
Postal address 1 | 205 North Mathews Ave |
Postal address 2 | |
Town / City | Urbana |
Postal code | 61801 |
State | Illinois |
Country | USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property. |
Email address | parkerg@illinois.edu |
Phone | 217 244-5159 |
Fax |
AgDegNormGravMixPW
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