Model:CHILD: Difference between revisions
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{{Model identity | {{Model identity | ||
|Model type=Modular | |Model type=Modular | ||
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{{Model identity2 | |||
|ModelDomain=Terrestrial | |||
|Spatial dimensions=3D | |Spatial dimensions=3D | ||
|One-line model description=Landscape Evolution Model | |One-line model description=Landscape Evolution Model | ||
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{{Model keywords | {{Model keywords | ||
|Model keywords=landscape evolution | |Model keywords=landscape evolution | ||
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{{Model keywords | |||
|Model keywords=erosion | |||
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{{Model keywords | |||
|Model keywords=sediment transport | |||
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{{Model keywords | |||
|Model keywords=soil erosion | |||
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{{Model keywords | |||
|Model keywords=landform development | |||
}} | |||
{{Model keywords | |||
|Model keywords=drainage basin | |||
}} | }} | ||
{{End a table}} | {{End a table}} | ||
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|Town / City=Boulder | |Town / City=Boulder | ||
|Postal code=80309 | |Postal code=80309 | ||
|Country=United States | |||
|State=Colorado | |State=Colorado | ||
|Email address=gtucker@colorado.edu | |Email address=gtucker@colorado.edu | ||
|Phone=+1 303 492 6985 | |Phone=+1 303 492 6985 | ||
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|Supported platforms=Unix, Linux, Mac OS | |Supported platforms=Unix, Linux, Mac OS | ||
|Programming language=C++ | |Programming language=C++ | ||
|Code optimized=Single Processor | |||
|Start year development=1997 | |Start year development=1997 | ||
|Does model development still take place?=Yes | |Does model development still take place?=Yes | ||
|DevelopmentCode=Only maintenance | |||
|DevelopmentCodeYearChecked=2020 | |||
|Model availability=As code | |Model availability=As code | ||
|Source code availability=Through | |Source code availability=Through web repository | ||
|Source web address=https://github.com/childmodel/child | |||
|Program license type=GPL v2 | |Program license type=GPL v2 | ||
|Memory requirements=depends on grid size | |Memory requirements=depends on grid size | ||
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|Pre-processing software needed?=No | |Pre-processing software needed?=No | ||
|Post-processing software needed?=Yes | |Post-processing software needed?=Yes | ||
|Describe post-processing software= | |Describe post-processing software=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. | ||
|Visualization software needed?=Yes | |Visualization software needed?=Yes | ||
|If above answer is yes=ESRI, IDL, Matlab | |If above answer is yes=ESRI, IDL, Matlab | ||
}} | }} | ||
{{Process description model | {{Process description model | ||
|Describe processes represented by the model= | |Describe processes represented by the model=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. | ||
|Describe key physical parameters and equations=Too many to list here -- see Tucker et al. (2001a), the CHILD Users Guide, and other documents listed in the bibliography. | |Describe key physical parameters and equations=Too many to list here -- see Tucker et al. (2001a), the CHILD Users Guide, and other documents listed in the bibliography. | ||
|Describe length scale and resolution constraints=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. | |Describe length scale and resolution constraints=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. | ||
|Describe time scale and resolution constraints=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. | |Describe time scale and resolution constraints=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. | ||
|Describe any numerical limitations and issues=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 | |Describe any numerical limitations and issues=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. | ||
}} | }} | ||
{{Model testing | {{Model testing | ||
|Describe available calibration data sets=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, | |Describe available calibration data sets=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. | ||
|Describe available test data sets=(pending) | |Describe available test data sets=(pending) | ||
|Describe ideal data for testing=See Tucker | |Describe ideal data for testing=See Tucker (2009) | ||
}} | }} | ||
{{Users groups model | {{Users groups model | ||
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{{Documentation model | {{Documentation model | ||
|Manual model available=Yes | |Manual model available=Yes | ||
|Model manual=Child users guide.pdf, Exercises from davos.pdf, | |||
|Model website if any='''The CSDMS web site''' (this model section) | |Model website if any='''The CSDMS web site''' (this model section) | ||
}} | }} | ||
{{Additional comments model | {{Additional comments model}} | ||
}} | |||
{{CSDMS staff part | {{CSDMS staff part | ||
|OpenMI compliant=No but possible | |OpenMI compliant=No but possible | ||
|IRF interface=Yes | |IRF interface=Yes | ||
|CMT component=Yes | |CMT component=Yes | ||
|PyMT component=Yes | |||
|CCA component=Yes | |||
}} | |||
{{DOI information | |||
|DOI model=10.1594/IEDA/100102 | |||
|DOI assigned to model version=2010.07.06 | |||
|DOI-year assigned to model version=2010 | |||
|DOI-filelink=https://csdms.colorado.edu/pub/models/doi-source-code/child-10.1594.IEDA.100102-2010.07.06.tar.gz | |||
}} | }} | ||
{{Start coupled table}} | {{Start coupled table}} | ||
{{End a table}} | {{End a table}} | ||
{{End headertab}} | {{End headertab}} | ||
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<!-- Edit the part above to update info on other papers --> | <!-- Edit the part above to update info on other papers --> | ||
== Channel-Hillslope Integrated Landscape Development (CHILD) Model == | == Channel-Hillslope Integrated Landscape Development (CHILD) Model == | ||
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=== Fault block uplift and subsidence === | === Fault block uplift and subsidence === | ||
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Simulation of a pair of normal-fault blocks separated by a vertical fault. The lower left edge is fixed through time, and represents a shallow shelf just below sea level. The inner block of the landscape rises at a steady rate, while the outer block subsides. Initially, the relief and erosion rate are small, and the subsiding basin is underfilled. Notice the progradation of a fan-delta complex. As relief and sediment flux increase, the fan deltas reach the shallow shelf and the basin becomes filled (or "over-filled" as they say, meaning that there is more than enough sediment to keep filling the basin as it continues to subside). | Simulation of a pair of normal-fault blocks separated by a vertical fault. The lower left edge is fixed through time, and represents a shallow shelf just below sea level. The inner block of the landscape rises at a steady rate, while the outer block subsides. Initially, the relief and erosion rate are small, and the subsiding basin is underfilled. Notice the progradation of a fan-delta complex. As relief and sediment flux increase, the fan deltas reach the shallow shelf and the basin becomes filled (or "over-filled" as they say, meaning that there is more than enough sediment to keep filling the basin as it continues to subside). | ||
=== Evolution of river valley landscape, stratigraphy, and geoarchaeology === | === Evolution of river valley landscape, stratigraphy, and geoarchaeology === | ||
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== References == | == References == | ||
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== Issues and Announcements == | == Issues and Announcements == | ||
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== Output Files == | == Output Files == | ||
A small utility to convert CHILD outputs to VTK format: [[File:Child2vtk.tar]] (Vincent Godard, CEREGE, Aix-Marseille University). VTK files can be visualized with softwares such as | A small utility to convert CHILD outputs to VTK format: [[File:Child2vtk.tar]] (Vincent Godard, CEREGE, Aix-Marseille University). VTK files can be visualized with softwares such as [http://www.paraview.org Paraview]. | ||
Latest revision as of 20:17, 16 September 2020
CHILD
Metadata
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Channel-Hillslope Integrated Landscape Development (CHILD) Model
CHILD was originally developed in 1997 by Nicole Gasparini, Stephen Lancaster, and Greg Tucker, in a research group directed by Rafael Bras at the Department of Civil and Environmental Engineering at MIT. Development and use of CHILD continues, with contributions by (among others) Mikael Attal (Edinburgh), Patrick Bogaart (Wageningen), Quintijn Clevis (Oxford), Daniel Collins (Wisconsin), Arnaud Desitter (Oxford), Homero Flores (MIT), Erkan Istanbulluoglu (Nebraska), Scott Miller (Syracuse), Vanessa Teles (IFP), and the original developers.
Example Simulations
Fault block uplift and subsidence
Simulation of a pair of normal-fault blocks separated by a vertical fault. The lower left edge is fixed through time, and represents a shallow shelf just below sea level. The inner block of the landscape rises at a steady rate, while the outer block subsides. Initially, the relief and erosion rate are small, and the subsiding basin is underfilled. Notice the progradation of a fan-delta complex. As relief and sediment flux increase, the fan deltas reach the shallow shelf and the basin becomes filled (or "over-filled" as they say, meaning that there is more than enough sediment to keep filling the basin as it continues to subside).
Evolution of river valley landscape, stratigraphy, and geoarchaeology
Scenario 1: Steady Aggradation
Scenario 2: Pomme de Terre River incision/aggradation history
Scenario 3: incision/aggradation history based on oxygen isotope curve
References
Nr. of publications: | 43 |
Total citations: | 4234 |
h-index: | 29 |
m-quotient: | 1.12 |
Featured publication(s) | Year | Model described | Type of Reference | Citations |
---|---|---|---|---|
Tucker, Gregory; Lancaster, Stephen; Gasparini, Nicole; Bras, Rafael; 2001. The Channel-Hillslope Integrated Landscape Development Model (CHILD). In: Harmon, Russell S.; Doe, William W. (eds.)Landscape Erosion and Evolution Modeling.. 349–388. (View/edit entry) | 2001 | CHILD |
Model overview | 311 |
Tucker, Gregory E.; Lancaster, Stephen T.; Gasparini, Nicole M.; Bras, Rafael L.; Rybarczyk, Scott M.; 2001. An object-oriented framework for distributed hydrologic and geomorphic modeling using triangulated irregular networks. Computers & Geosciences, 27, 959–973. 10.1016/S0098-3004(00)00134-5 (View/edit entry) | 2001 | CHILD |
Model overview | 277 |
Tucker, G.E.; Gasparini, N.M; Bras; R.L.; Lancaster, S.L.; 1999. A 3D Computer Simulation Model of Drainage Basin and Floodplain Evolution: Theory and Applications. Technical report prepared for U.S. Army Corps of Engineers Construction Engineering Research Laboratory.. (View/edit entry) | 1999 | CHILD |
Model overview | 0 |
See more publications of CHILD |
Issues and Announcements
July 6, 2010
Version R10.7 has been released! Included with this version is a set of hands-on, tutorial-style exercises that were "beta tested" at the "Summer School and Workshop on Modelling Surface Processes on Geological Timescales" in Davos, Switzerland, in June 2010. Space-time varying uplift fields can now be specified -- see the Users Guide for details.
January 29, 2009
Philippe Steer reports:
I am Philippe Steer, PhD student at Geosciences Montpellier in France.
I have encountered an error when trying to compile child:
"INT_MAX" was not declared in this scope /Code/tMesh/tMesh.cpp
Solution to this problem:
add "#include <limits.h>" at the begining of tMesh.cpp
Configuration:
OS: linux- Opensuse11 Computer: Dell Precision T 7400, Intel Xeon, 64 bits compiling with gcc 4.3
I hope it will help other newbies (as I am!) in C,
Philippe
Help
A new manual is now available.
Input Files
Output Files
A small utility to convert CHILD outputs to VTK format: File:Child2vtk.tar (Vincent Godard, CEREGE, Aix-Marseille University). VTK files can be visualized with softwares such as Paraview.