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From CSDMS
Yes +
No but possible +
Single Processor +
Creation date"Creation date" is a predefined property that corresponds to the date of the first revision of a subject and is provided by <a target="_blank" rel="nofollow noreferrer noopener" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Special_properties">Semantic MediaWiki</a>.
13:45:59, 14 February 2009 +
Yes, both. +
https://csdms.colorado.edu/pub/models/doi-source-code/child-10.1594.IEDA.100102-2010.07.06.tar.gz +
2010.07.06 +
The model has been benchmarked against ana … The model has been benchmarked against analytical solutions for simple cases, such as fluvial slope-area scaling and parabolic to parabolic-planar hillslope form under uniform erosion, materials, and climate. Testing and calibration of some of the individual components (e.g., linear and nonlinear soil creep, stream-power fluvial erosion law, etc.) have been reported in the literature (for a review, see Tucker and Hancock, 2010). Testing of the full coupled model using natural experiments (Tucker, 2009) is ongoing.ral experiments (Tucker, 2009) is ongoing. +
(pending) +
See Tucker (2009) +
Topography z(x,y) or parameters describing a topographic surface; rate coefficients; switches for activating options and choosing between alternative transport/erosion formulas. Uses a formatted text file for input of parameters. +
Too many to list here -- see Tucker et al. (2001a), the CHILD Users Guide, and other documents listed in the bibliography. +
In principle, the model can address spatia … In principle, the model can address spatial scales ranging from gullies and small (~1km2) catchments to mountain ranges, as long as setup and parameters are chosen appropriately. Resolutions greater than about 10,000 nodes normally require significant computation time.ally require significant computation time. +
The fluvial sediment transport equations a … The fluvial sediment transport equations are quasi-diffusive and typically have orders of magnitude spatial variations in rate coefficient (reflecting differences in water discharge), which makes the system of equations stiff. Small time steps are typically required, which can lead to long compute times for large meshes.ad to long compute times for large meshes. +
Outputs include grids of surface elevation … Outputs include grids of surface elevation, drainage area, gradient, stratigraphy, drainage direction, Voronoi cell areas, sediment texture; data on mesh configuration; total landscape volume and change in volume at each storm (time step); list of storm durations, timing, and intensities. storm durations, timing, and intensities. +
An extensive library of Matlab scripts pro … An extensive library of Matlab scripts provides visualization and post-processing capabilities. A few scripts also exist for IDL, and it is possible to process the output to generate lists of points for input to ArcGIS. In addition, a post-processing program called CHILD2VTK is available to convert output into VTK format for use in visualization programs such as ParaView.n visualization programs such as ParaView. +
Basic processes include runoff generation, water erosion and sediment transport, and gravitational erosion and sediment transport. Depending on the application, the user can apply a vegetation-growth module, various tectonic functions, and other options. +
The steady flow assumption used by most (n … The steady flow assumption used by most (not all) hydrology sub-models restricts time scale to periods significantly longer than a single storm. The model has been mostly used to address time scales relevant to significant topographic evolution, though in the case of rapidly changing landscapes (e.g., gully networks) this can be as short as decades.networks) this can be as short as decades. +
Only maintenance +
2,010 +
CHILD computes the time evolution of a topographic surface z(x,y,t) by fluvial and hillslope erosion and sediment transport. +
Greg +
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ASCII +
Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Geological Sciences at the University of Colorado +
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1.07 +
depends on grid size +
Terrestrial +
model +, evolution +, landscape +, child computes +, sediment transport +, computes the time +, time evolution +, topographic surface +, fluvial and hillslope +, hillslope erosion +, erosion and sediment +, child +, transport +, computes +, time +, topographic +, surface +, landscape evolution +, erosion +, soil erosion +, landform development + and drainage basin +
As code +
Modular +
'''The CSDMS web site''' (this model section) +
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02:17:48, 17 September 2020 +
43 +
Landscape Evolution Model +
ASCII +
University of Colorado +
Campus Box 399 +
80309 +
false +
GPL v2 +
minutes to days +
Through web repository +
https://github.com/childmodel/child +
1997 +
Model developer +
