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
|
| 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
|
2003
|
| Does model development still take place?
|
Yes
|
| If above answer is no, provide end year model development
|
|
| Code development status
|
|
| When did you indicate the 'code development status'?
|
|
| Model availability
|
|
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
|
GPL v2
|
| Program license type other
|
|
| Memory requirements
|
--
|
| Typical run time
|
hour to days
|
In/Output
| Describe input parameters
|
Does not require any input data, but if desired, model can run from files describing sea level and/or the elevations of an existing marsh.
|
| Input format
|
ASCII
|
| Other input format
|
|
| Describe output parameters
|
Elevation, Biomass, Accretion Rate, Erosion Rate, and other characteristics of every cell in domain. Also outputs spatially averaged statistics.
|
| 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
|
Matlab
|
| Other visualization software
|
|
Process
| Describe processes represented by the model
|
The model calculates changes in elevation and vegetation growth for a hypothetical salt marsh. In each cell, elevation change is calculated as the difference between accretion and erosion. Accretion rates are a function of inundation depth, vegetation growth, and suspended sediment concentration. Water routed according to Rinaldo et al. (1999) scheme. Erosion rates calculated according to excess sheer stress. Channels widen according to a diffusion-like routine where downslope transport is inversely proportional to vegetation. Vegetation grows according to Morris et al. (2002) where biomass is proportional to inundation depth up until an optimum depth. Episodic vegetation disturbance is simulated by removing vegetation from randomly selected cells (Kirwan et al., 2008). Another version of the model treats wave erosion in a simplistic manner (Kirwan and Murray, 2008).
|
| Describe key physical parameters and equations
|
Key parameters include the rate of sea level rise, suspended sediment concentration, tidal range (which controls vegetation distribution), critical shear stress for sediment erosion, and the period of time that erosion takes place during each tidal cycle. Parameters controlling the growth pattern of vegetation can easily be modified.
|
| Describe length scale and resolution constraints
|
Domain size is 3 km by 3 km, grid cell is 5 m by 5m.
|
| Describe time scale and resolution constraints
|
The model explicitly runs on an individual tidal cycle time step, which we scale up to 2 months. But, results most meaningful at timescales greater than a couple years.
|
| Describe any numerical limitations and issues
|
--
|
Testing
| Describe available calibration data sets
|
Biomass productivity and marsh accretion rates from 1984-present, described in Morris et al. (2002).
|
| Upload calibration data sets if available:
|
|
| Describe available test data sets
|
A couple high resolution Pb210 curves that span ~100 years are currently being constructed and used to test model.
|
| Upload test data sets if available:
|
|
| Describe ideal data for testing
|
Long term, high resolution (annual to couple years) datasets of marsh accretion. Similar time series of channel characteristics would be useful.
|
Other
| Do you have current or future plans for collaborating with other researchers?
|
Yes
|
| Is there a manual available?
|
No
|
| Upload manual if available:
|
|
| Model website if any
|
|
| Model forum / discussion board
|
|
Introduction
History
Papers
Issues
Help
Input Files
Output Files
Download
Source |
