Model:CosmoLand

Contact

Name	Brian Yanites
Type of contact	Model developer
Institute / Organization	University of Colorado
Postal address 1	2200 Colorado Ave.
Postal address 2	Campus Box 399
Town / City	Boulder
Postal code	80309
State	Colorado
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	brian.yanites@colorado.edu
Phone	303-895-9957
Fax

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CosmoLand

Metadata

Summary Also known as Model type Single Model part of larger framework Note on status model Date note status model Technical specs Supported platforms Linux, Mac OS, Windows Other platform Programming language Matlab Other program language Code optimized Single Processor Multiple processors implemented Nr of distributed processors Nr of shared processors Start year development 2005 Does model development still take place? No If above answer is no, provide end year model development 2008 Code development status When did you indicate the 'code development status'? Model availability As code Source code availability (Or provide future intension) Through owner"Through owner" is not in the list (Through web repository, Through CSDMS repository) of allowed values for the "Source code availability" property. Source web address Source csdms web address Program license type Other Program license type other -- Memory requirements <512MB Typical run time minutes to days In/Output Describe input parameters Input: Landslide: recurrence interval, size parameters Cosmogenic: production rate, decay rate, attenuation, density diffusive erosion rate drainage basin size, critical drainage area for a channel River channel scaling parameters: width, sediment depth, drainage density Input format Other input format matlab .m file Describe output parameters Mass, atoms, landslide size, fluvial residence time, mixed mass and atoms fraction Output format Other output format .mat file 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 Matlab Other visualization software Process Describe processes represented by the model Tracking of cosmogenic nuclides on surface and in fluvial system of a landslide dominated drainage basin Describe key physical parameters and equations Cosmogenic nuclide production decay with depth. Power-law distribution of landslide size. Calculates a fluvial storage reservoir. Describe length scale and resolution constraints Drainage basin size controls the length of the model runs. Cell size should not be increased to shorten model runs. Describe time scale and resolution constraints Yearly timesteps. Most runs go for 500,000 yrs or more. Describe any numerical limitations and issues Matlab may max out memory if drainage basin is too large. Since this is a simplified landscape with wrap-around boundary conditions, one workaround is to do numerous smaller runs and add the output. Testing Describe available calibration data sets -- Upload calibration data sets if available: Describe available test data sets -- Upload test data sets if available: Describe ideal data for testing CRN data both hillslope and fluvial. Other Do you have current or future plans for collaborating with other researchers? Not currently. Is there a manual available? No Upload manual if available: Model website if any Model forum / discussion board Comments CosmoLand Introduction History Papers CosmoLand Questionnaire Contact Information Model: CosmoLand Contact person: Brian Yanites (model developer) Institute: University of Colorado City: Boulder, CO Country: USA Email: brian.yanites@colorado.edu 2nd person involved: -- 3rd person involved: -- Model description Model type: Single model for the terrestrial domain. Description: The model tracks both surface CRN concentration and concentration eroded off hillslopes into fluvial network in a simplified landscape undergoing both landslide erosion and more steady 'diffusive-like' erosion. Sediment mixing is allowed in the fluvial network. Code can be used to help successfully develop CRN sampling procedures in terrains where landslides are important. Technical information Supported platforms: Linux, Mac OS X, Windows Programming language: Matlab Model development started at: 2005 and ended in 2008 To what degree will the model become available: Source code will be available Current license type: -- Memory requirements: <512MB Typical run time: Minutes to days Input / Output description Input parameters: Landslide: recurrence interval, size parameters Cosmogenic: production rate, decay rate, attenuation, density diffusive erosion rate drainage basin size, critical drainage area for a channel River channel scaling parameters: width, sediment depth, drainage density Input format: Matlab .m file Output parameters: Mass, atoms, landslide size, fluvial residence time, mixed mass and atoms fraction Output format: .mat file Post-processing software (if needed): no Visualization software (if needed): Yes, Matlab Process description Processes represented by model: Tracking of cosmogenic nuclides on surface and in fluvial system of a landslide dominated drainage basin Key physical parameters & equations: Cosmogenic nuclide production decay with depth. Power-law distribution of landslide size. Calculates a fluvial storage reservoir. Length scale & resolution constraints: Drainage basin size controls the length of the model runs. Cell size should not be increased to shorten model runs. Time scale & resolution constraints: Yearly timesteps. Most runs go for 500,000 yrs or more. Numerical limitations and issues : Matlab may max out memory if drainage basin is too large. Since this is a simplified landscape with wrap-around boundary conditions, one workaround is to do numerous smaller runs and add the output. Testing Available calibration data sets: -- Available test data sets: -- Ideal data for testing: CRN data both hillslope and fluvial. User groups Currently or plans for collaborating with: Not currently. Documentation Key papers of the model: For reference see Yanites et al. (2008) Numerical and analytical models of cosmogenic radionuclide dynamics in landslide dominated drainage basins, JGR-Earth Surface, in press. Is there a manual available: no Model website if any: -- Additional comments Comments: -- Issues Help Input Files Output Files Download Source Command-Line Access GUI and IDE Access Subversion Help