Summary
| Also known as
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| Model type
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Modular
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| Model part of larger framework
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| Note on status model
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| Date note status model
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Technical specs
| Supported platforms
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Linux, Windows
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| Other platform
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| Programming language
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Fortran90
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| Other program language
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| Code optimized
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| Multiple processors implemented
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| Nr of distributed processors
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| Nr of shared processors
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| Start year development
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1990
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| Does model development still take place?
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Yes
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| If above answer is no, provide end year model development
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| Code development status
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| When did you indicate the 'code development status'?
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| Model availability
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As code
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Source code availability
(Or provide future intension)
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Through CSDMS repository
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| Source web address
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| Source csdms web address
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| Program license type
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Other
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| Program license type other
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None
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| Memory requirements
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Variable - dynamic arrays
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| Typical run time
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hour to days
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In/Output
| Describe input parameters
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Initial elevation file.
File specifying boundary conditions, run time, process options, and parameter values.
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| Input format
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ASCII
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| Other input format
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| Describe output parameters
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RAW image files of elevation and shaded relief.
ASCII file of elevations at specified times.
ASCII files of other state variables as desired at specified times.
Iteration-by-iteration summary file
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| Output format
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ASCII
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| Other output format
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| Pre-processing software needed?
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No
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| Describe pre-processing software
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| Post-processing software needed?
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Yes
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| Describe post-processing software
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Photoshop to produce movies. Conversions to a variety of data formats.
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| Visualization software needed?
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Yes
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| If above answer is yes
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| Other visualization software
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Surfer for topographic maps
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Process
| Describe processes represented by the model
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Bedrock fluvial incision (shear stress or sediment flux dependency).
Mass wasting (creep and threshold-limited).
Bedload sediment transport & deposition in streams, fans, deltas.
Impact cratering, aeolian deposition, lava flows.
Flow routing with evaporation from depressions.
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| Describe key physical parameters and equations
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Bedrock erodibility, mass wasting diffusivity, bed material grain size, flow hydrologic parameters, relative evaporation rate, cratering size distribution and rate, eolian deposition parameters, etc.
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| Describe length scale and resolution constraints
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Variable - targeted towards drainage basin or larger scales. Spatial scale determined by input parameter and run-time specification of array dimentions. Uses rectangular grid cells.
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| Describe time scale and resolution constraints
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Variable - Limited by computer speed.
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| Describe any numerical limitations and issues
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Runs with grid sizes greater than about 600x600 may require many days on a PC.
Model assumes fluvial streams have gradients determined by steady-state transport.
Depositional stratigraphy not modeled.
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Testing
| Describe available calibration data sets
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None
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| Upload calibration data sets if available:
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| Describe available test data sets
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Example runs for most types of simulation scenarios
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| Upload test data sets if available:
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| Describe ideal data for testing
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None
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Other
| Do you have current or future plans for collaborating with other researchers?
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Yes, at present primarily in the planetary community.
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| Comments
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Most recent model available from ah6p@virginia.edu.
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Introduction
History
Papers
Issues
Help
Documentation that describes MARSSIM subroutines and functions, input and output files, and literature references can be found here: marssim_program.pdf
Input Files
See: marssim_program.pdf
Output Files
See: marssim_program.pdf
Download source code
Template:Download Model
Accessory MARSSIM programs can be downloaded here:
accessory_programs.zip
Example simulations are for a variety of scenarios are generated and can be downloaded below:
- Accretion
- Arid_slope
- Bedrock: (download these 2 files and place Resist.in in the bedrock folder)
- Bedrock
- Resist.in
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