Model:GOLEM

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GOLEM

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Summary Contact Technical specs In/Output Process Testing Other Component info Also known as Model type Single Model part of larger framework Note on status model Date note status model Incorporated models or components: Spatial dimensions 2D Spatial extent Model domain Terrestrial One-line model description Landscape evolution model Extended model description Landscape evolution model. Computes evolution of topography under the action of rainfall and tectonics. Keywords: landscape evolution, Name Greg Tucker Type of contact Model developer Institute / Organization University of Colorado Postal address 1 CIRES & Dept. Geological Sciences Postal address 2 Campus Box 399 Town / City Boulder Postal code 80309-0399 State Colorado Country United States Email address Gregory.Tucker@colorado.edu Phone +1 303 492 6985 Fax +1 303 492 2606 Supported platforms Unix, Linux, Mac OS Other platform Programming language C Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 1991 Does model development still take place? Yes If above answer is no, provide end year model development Code development status As is, no updates are provided When did you indicate the 'code development status'? 2020 Model availability As code Source code availability (Or provide future intension) Through CSDMS repository Source web address Source csdms web address https://github.com/csdms-contrib/golem Program license type GPL v2 Program license type other Memory requirements Variable Typical run time minutes to days Describe input parameters Standard input parameter files (ascii). For some conditions, also require additional binary file specifying boundary configuration. Input format ASCII, Binary Other input format Describe output parameters Elevation, drainage area, and related gridded information. Output format ASCII Other output format Pre-processing software needed? No Describe pre-processing software Post-processing software needed? No Describe post-processing software Visualization software needed? Yes If above answer is yes IDL, Matlab Other visualization software some visualization scripts for IDL and Matlab available. Describe processes represented by the model Runoff, hillslope and channel sediment transport. Describe key physical parameters and equations Key state variables include surface elevation, soil thickness, and discharge. Describe length scale and resolution constraints Has been used on scales from small (few km2) watersheds to sub-continental areas. Describe time scale and resolution constraints Designed for time scales over which topography changes appreciably, which might be years for badlands, up to thousands or millions of years for other landscapes. Describe any numerical limitations and issues Equation set is still and uses robust but relatively inefficient solvers. Recommend testing with coarse grid resolutions (say, 20x20 cells) before attempting larger/finer grids. Describe available calibration data sets Few or none, unfortunately Upload calibration data sets if available: Describe available test data sets Upload test data sets if available: Describe ideal data for testing [[Describe ideal data::See: Tucker, G.E. (2009) Natural experiments in landscape evolution. Earth Surface Processes and Landforms, v. 34, p. 1450-1460, doi:10.1002/esp.1833.]] Do you have current or future plans for collaborating with other researchers? -- Is there a manual available? Yes Upload manual if available: Model website if any http://geode.colorado.edu/~gtucker/Software/Golem/GolemMain.html Model forum / discussion board Comments GOLEM was written in the 1990s by one of the creators of CHILD. Although it lacks many of the special capabilities of CHILD, it has a simpler, more compact code base (just a single C source file) and uses a raster grid data structure. This part will be filled out by CSDMS staff OpenMI compliant No but possible BMI compliant No but possible WMT component No but possible PyMT component Is this a data component DOI model 10.1594/IEDA/100132 For model version 5:14 Year version submitted 2011 Link to file https://csdms.colorado.edu/pub/models/doi-source-code/golem-10.1594.IEDA.100132-5.14.tar.gz Can be coupled with:

Model info Authors Greg Tucker Source code View in CSDMS GitHub repository DOI Download GOLEM version: 5:14 Doi: 10.1594/IEDA/100132 Model citations Nr. of publications: 8 Total citations: 1955 h-index: 5 m-quotient: 0.16 QR-code Link to this page Other models by author Bedrock Fault Scarp CHILD FractureGridGenerator GOLEM Landlab LinearDiffuser ModelParameterDictionary StreamPowerSmoothThresholdEroder

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Nr. of publications:	8
Total citations:	1955
h-index:	5
m-quotient:	0.16

Featured publication(s)	Year	Model described	Type of Reference	Citations
Tucker, Gregory E.; Slingerland, Rudy L.; 1994. Erosional dynamics, flexural isostasy, and long-lived escarpments: A numerical modeling study. Journal of Geophysical Research: Solid Earth, 99, 12229–12243. 10.1029/94JB00320 (View/edit entry)	1994	GOLEM	Model overview	474
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