From csdms
[edit] MARSSIM
Contents |
[edit] Metadata
| Modeler information | |
|---|---|
| First name | Alan |
| Last name | Howard |
| Type of contact | Model developer |
| Institute / Organization | University of Virginia |
| Postal address 1 | P.O. Box 400123 |
| Postal address 2 | |
| Town / City | Charlottesville |
| Postal code | 22904-4123 |
| State | Virginia |
| Country | USA |
| Email address | ah6p@virginia.edu |
| Phone | 434-924-0566 |
| Fax | 434-982-2137 |
| Model identity | |
|---|---|
| Model type | Modular |
| Spatial dimensions | |
| Spatial extent | |
| Model domain | , |
| One-line model description | Landform evolution model |
| Extended model description | A landform evolution model operating at the drainage basin or larger scale. Recent model development has targeted planetary applications. |
| Model technical information | |
|---|---|
| Supported platforms | Linux, Windows |
| Other platform | |
| Programming language | Fortran90 |
| Other program language | |
| Code optimized | |
| Start year development | 1990 |
| Does model development still take place? | Yes |
| If above answer is no, provide end year model development | |
| Model availability | As code |
| Source code availability (Or provide future intension) | Through CSDMS repository |
| Source web address | |
| Program license type | Other |
| Program license type other | None |
| OpenMI compliant | No but possible |
| CCA component | No but possible |
| IRF interface | No but possible |
| Memory requirements | Variable - dynamic arrays |
| Typical run time | hour to days |
| Input - Output description | |
|---|---|
| Describe input parameters | Initial elevation file.
File specifying boundary conditions, run time, process options, and parameter values. |
| Input format | ASCII |
| Other input format | |
| Describe output parameters | 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 |
| Output format | ASCII |
| Other output format | |
| Pre-processing software needed? | No |
| Describe pre-processing software | |
| Post-processing software needed? | Yes |
| Describe post-processing software | Photoshop to produce movies. Conversions to a variety of data formats. |
| Visualization software needed? | Yes |
| If above answer is yes | |
| Other visualization software | Surfer for topographic maps |
| Process description model | |
|---|---|
| Describe processes represented by the model | 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. |
| Describe key physical parameters and equations | Bedrock erodibility, mass wasting diffusivity, bed material grain size, flow hydrologic parameters, relative evaporation rate, cratering size distribution and rate, eolian deposition parameters, etc. |
| Describe length scale and resolution constraints | 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. |
| Describe time scale and resolution constraints | Variable - Limited by computer speed. |
| Describe any numerical limitations and issues | 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. |
| Model testing | |
|---|---|
| Describe available calibration data sets | None |
| Upload calibration data sets if available: | |
| Describe available test data sets | Example runs for most types of simulation scenarios |
| Upload test data sets if available: | |
| Describe ideal data for testing | None |
| Users groups model | |
|---|---|
| Do you have current or future plans for collaborating with other researchers? | Yes, at present primarily in the planetary community. |
| Documentation model | |
|---|---|
| Provide key papers on model if any | Howard, A.D., 1994, A detachment-limited model of drainage basin evolution, Water Resources Research, 30(7) 2261-85.
Howard, A.D., 2007, Simulating the development of martian highland landscapes..., Geomorphology, 91, 332-363. |
| Is there a manual available? | Yes |
| Upload manual if available: | Media:marssim_program.pdf |
| Model website if any | http://erode.evsc.virginia.edu |
| Model forum / discussion board | |
| Additional comments | |
|---|---|
| Comments | Most recent model available from ah6p@virginia.edu. |
[edit] Introduction
[edit] History
[edit] Papers
[edit] Issues
[edit] Help
Documentation that describes MARSSIM subroutines and functions, input and output files, and literature references can be found here: marssim_program.pdf
[edit] Input Files
See: marssim_program.pdf
[edit] Output Files
See: marssim_program.pdf
[edit] Download
Source-code snapshots are available via ftp at:
The latest version:
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)
- Callisto
- Coastal
- Critical_shear_stress
- Deep_seepage
- Eolian
- Fluvial_no_cratering
- Fluvial_rapid_cratering
- Fluvial_slow_cratering
- Gully
- Large_crater
- Lava
- Moderate_cratering
- Non_linear_creep_enhanced
- Non_linear_creep_retarded
- Pediment
- Pelagic_sedimentation
- Resistant_bedrock
- Shallow_seepage
- Simple_steady_state
- slope_evap_steady_25
- Small_crater
- Variable_evaporation
