Model:Kirwan marsh model: Difference between revisions

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{{Model identity
|Model type=Single
}}
{{Model identity2
|ModelDomain=Coastal
|One-line model description=Ecomorphoydamic model of marsh elevation and channel evolution
|Extended model description=Spatially explicit model of the development and evolution of salt marshes, including vegetation influenced accretion and hydrodynamic determined channel erosion.
}}
{{Start model keyword table}}
{{Model keywords
|Model keywords=coastal morphdynamics
}}
{{Model keywords
|Model keywords=salt Marsh - tidal Flat evolution
}}
{{End a table}}
{{Modeler information
{{Modeler information
|First name=Matthew
|First name=Matthew
Line 8: Line 24:
|Postal code=22904
|Postal code=22904
|State=Virginia
|State=Virginia
|Country=USA
|Country=United States
|Email address=mkirwan@usgs.gov
|Email address=mkirwan@usgs.gov
}}
{{Model identity
|Model type=Single
|Categories=Coastal
|One-line model description=Ecomorphoydamic model of marsh elevation and channel evolution
|Extended model description=Spatially explicit model of the development and evolution of salt marshes, including vegetation influenced accretion and hydrodynamic determined channel erosion.
}}
}}
{{Model technical information
{{Model technical information
Line 23: Line 33:
|Start year development=2003
|Start year development=2003
|Does model development still take place?=Yes
|Does model development still take place?=Yes
|Source code availability=Through owner
|Program license type=GPL v2
|Program license type=GPL v2
|OpenMI compliant=No but possible
|CCA component=No but possible
|IRF interface=No but possible
|Memory requirements=--
|Memory requirements=--
|Typical run time=hour to days
|Typical run time=hour to days
}}
}}
{{Input - Output description
{{Input - Output description
|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.  
|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
|Input format=ASCII
|Describe output parameters=Elevation, Biomass, Accretion Rate, Erosion Rate, and other characteristics of every cell in domain. Also outputs spatially averaged statistics.  
|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
|Output format=ASCII
|Pre-processing software needed?=No
|Pre-processing software needed?=No
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}}
}}
{{Process description model
{{Process description model
|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 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 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 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 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=--
|Describe any numerical limitations and issues=--
}}
}}
{{Model testing
{{Model testing
|Describe available calibration data sets=Biomass productivity and marsh accretion rates from 1984-present, described in Morris et al. (2002).  
|Describe available calibration data sets=Biomass productivity and marsh accretion rates from 1984-present, described in Morris et al. (2002).
|Describe available test data sets=A couple high resolution Pb210 curves that span ~100 years are currently being constructed and used to test model.  
|Describe available test data sets=A couple high resolution Pb210 curves that span ~100 years are currently being constructed and used to test model.
|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.  
|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.
}}
}}
{{Users groups model
{{Users groups model
Line 57: Line 63:
}}
}}
{{Documentation model
{{Documentation model
|Provide key papers on model if any=Papers:
|Provide key papers on model if any=Key Papers:
*Kirwan, M.L., and Murray, A.B. (2007), A coupled geomorphic and ecological model of tidal marsh evolution, Proc. Natl. Acad. Sci., 104, 6118-6122.
* '''Kirwan, M.L., and Murray, A.B., 2007. A coupled geomorphic and ecological model of tidal marsh evolution, Proc. Natl. Acad. Sci., 104, 6118-6122. Doi: ([http://dx.doi.org/10.1073/pnas.0700958104 10.1073/pnas.0700958104]).
*Kirwan, M.L., Murray, A.B., and Boyd, W.S. (2008), Temporary vegetation disturbance as an explanation for permanent loss of tidal wetlands, Geophys. Res. Lett., 35, L05403, doi:10.1029/2007GL032681.
 
*Kirwan, ML and Murray, AB, 2008. Ecological and morphological response of brackish tidal marshland to the next century of sea level rise: Westham Island, British Columbia. Global and Planetary Change 60: 471-486.
* '''Kirwan, M.L., Murray, A.B., and Boyd, W.S., 2008. Temporary vegetation disturbance as an explanation for permanent loss of tidal wetlands, Geophys. Res. Lett., 35, L05403, Doi: ([http://dx.doi.org/10.1029/2007GL032681 10.1029/2007GL032681]).'''
 
* '''Kirwan, ML and Murray, AB, 2008. Ecological and morphological response of brackish tidal marshland to the next century of sea level rise: Westham Island, British Columbia. Global and Planetary Change 60: 471-486. Doi: ([http://dx.doi.org/10.1016/j.gloplacha.2007.05.005 10.1016/j.gloplacha.2007.05.005]).'''
|Manual model available=No
|Manual model available=No
}}
}}
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|Comments=--
|Comments=--
}}
}}
{{Infobox Model
{{CSDMS staff part
|model name              = Kirwan marsh model
|OpenMI compliant=No but possible
|developer                = '''Kirwan''', Matthew
|CCA component=No but possible
|one-line-description    = Ecomorphoydamic model of marsh elevation and channel evolution
|IRF interface=No but possible
|type                    = Model
|CMT component=No but possible
|source                  = [[image:Red1.png]]
}}
}}
{{Start coupled table}}
{{End a table}}
{{End headertab}}
{{{{PAGENAME}}_autokeywords}}
{{NOINDEX}}
<!-- Edit the part above to update info on other papers -->
<!-- Edit the part above to update info on other papers -->


== Kirwan marsh model ==
==Introduction==
__TOC__
===Introduction===
 
=== History ===
 
=== Papers ===
 
=== Kirwan marsh model Questionnaire ===
 
==== Contact Information ====
 
{| class="wikitable"
| class="model_col1"| Model:
| class="model_col2"| ''Kirwan marsh model''
|-
| class="model_col1"| Contact person:
| class="model_col2"| Matthew Kirwan (Model developer)
|-
| class="model_col1"| Institute:
| class="model_col2"| University of Virginia
|-
| class="model_col1"| City:
| class="model_col2"| Charlottesville, Virginia
|-
| class="model_col1"| Country:
| class="model_col2"| USA
|-
| class="model_col1"| Email:
| class="model_col2"| mkirwan@usgs.gov
|-
| class="model_col1"| 2nd person involved:
| class="model_col2"| Brad Murray (Model developer)
|-
| class="model_col1"| 3rd person involved:
| class="model_col2"|
|}
 
==== Model description ====
 
{| class="wikitable"
| class="model_col1"| Model type:
| class="model_col2"| Single model for the coastal domain.
|-
| class="model_col1"| Description:
| class="model_col2"| Spatially explicit model of the development and evolution of salt marshes, including vegetation influenced accretion and hydrodynamic determined channel erosion.
|}
 
==== Technical information ====
 
{| class="wikitable"
| class="model_col1"| Supported platforms:
| class="model_col2"| Linux
|-
| class="model_col1"| Programming language:
| class="model_col2"| C
|-
| class="model_col1"| Model development started at:
| class="model_col2"| 2003 and development still takes place.
|-
| class="model_col1"| To what degree will the model become available:
| class="model_col2"| From case by case basis from author
|-
| class="model_col1"| Current license type:
| class="model_col2"| GPL v2
|-
| class="model_col1"| Memory requirements:
| class="model_col2"| --
|-
| class="model_col1"| Typical run time:
| class="model_col2"| hours to days
|}
 
==== Input / Output description ====
 
{| class="wikitable"
| class="model_col1"| Input parameters:
| class="model_col2"| 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.
|-
| class="model_col1"| Input format:
| class="model_col2"| ASCII
|-
| class="model_col1"| Output parameters:
| class="model_col2"| Elevation, Biomass, Accretion Rate, Erosion Rate, and other characteristics of every cell in domain. Also outputs spatially averaged statistics.
|-
| class="model_col1"| Output format:
| class="model_col2"| ASCII
|-
| class="model_col1"| Post-processing software (if needed):
| class="model_col2"| No
|-
| class="model_col1"| Visualization software (if needed):
| class="model_col2"| Yes, Matlab
|}
 
==== Process description ====
 
{| class="wikitable"
| class="model_col1"| Processes represented by model:
| class="model_col2"| 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).
|-
| class="model_col1"| Key physical parameters & equations:
| class="model_col2"| 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.
|-
| class="model_col1"| Length scale & resolution constraints:
| class="model_col2"| Domain size is 3 km by 3 km, grid cell is 5 m by 5m.
|-
| class="model_col1"| Time scale & resolution constraints:
| class="model_col2"| 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.
|-
| class="model_col1"| Numerical limitations and issues :
| class="model_col2"| --
|}
 
==== Testing ====
 
{| class="wikitable"
| class="model_col1"| Available calibration data sets:
| class="model_col2"| Biomass productivity and marsh accretion rates from 1984-present, described in Morris et al. (2002).
|-
| class="model_col1"| Available test data sets:
| class="model_col2"| A couple high resolution Pb210 curves that span ~100 years are currently being constructed and used to test model.
|-
| class="model_col1"| Ideal data for testing:
| class="model_col2"| Long term, high resolution (annual to couple years) datasets of marsh accretion. Similar time series of channel characteristics would be useful.
|}
 
==== User groups ====
 
{| class="wikitable"
| class="model_col1"| Currently or plans for collaborating with:
| class="model_col2"| Yes
|}
 
==== Documentation ====
 
{| class="wikitable"
| class="model_col1"| Key papers of the model:
| class="model_col2"|
*Kirwan, M.L., and Murray, A.B. (2007), A coupled geomorphic and ecological model of tidal marsh evolution, Proc. Natl. Acad. Sci., 104, 6118-6122.
*Kirwan, M.L., Murray, A.B., and Boyd, W.S. (2008), Temporary vegetation disturbance as an explanation for permanent loss of tidal wetlands, Geophys. Res. Lett., 35, L05403, doi:10.1029/2007GL032681.
*Kirwan, ML and Murray, AB, 2008. Ecological and morphological response of brackish tidal marshland to the next century of sea level rise: Westham Island, British Columbia. Global and Planetary Change 60: 471-486.
|-
| class="model_col1"| Is there a manual available:
| class="model_col2"| no
|-
| class="model_col1"| Model website if any:
| class="model_col2"| --
|}
 
==== Additional comments ====
 
{| class="wikitable"
| class="model_col1"| Comments:
| class="model_col2"| --
|}
 
=== Issues ===


=== Help ===
== History ==


=== Input Files ===
== References  ==
<br>{{AddReferenceUploadButtons}}<br><br>
{{#ifexist:Template:{{PAGENAME}}-citation-indices|{{{{PAGENAME}}-citation-indices}}|}}<br>
{{Include_featured_references_models_cargo}}<br>


=== Output Files ===
== Issues ==


=== Download ===
== Help ==
{{#ifexist:Model_help:{{PAGENAME}}|[[Model_help:{{PAGENAME}}]]|}}


=== Source ===
== Input Files ==


== Output Files ==


[[Category:Coastal]]
[[Category:Source code not available]]

Latest revision as of 20:14, 16 September 2020



Kirwan marsh model


Metadata

Also known as
Model type Single
Model part of larger framework
Note on status model
Date note status model
Spatial dimensions
Spatial extent
Model domain Coastal
One-line model description Ecomorphoydamic model of marsh elevation and channel evolution
Extended model description Spatially explicit model of the development and evolution of salt marshes, including vegetation influenced accretion and hydrodynamic determined channel erosion.
Keywords:

coastal morphdynamics, salt Marsh - tidal Flat evolution,

Name Matthew Kirwan
Type of contact Model developer
Institute / Organization University of Virginia
Postal address 1 PO Box 400123
Postal address 2
Town / City Charlottesville
Postal code 22904
State Virginia
Country United States
Email address mkirwan@usgs.gov
Phone
Fax


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)
Source web address
Source csdms web address
Program license type GPL v2
Program license type other
Memory requirements --
Typical run time hour to days


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


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 --


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.


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
Comments --


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
Can be coupled with:
Model info
Authors
Matthew Kirwan
Source code
Model citations
Nr. of publications: --
Total citations: 0
h-index: --"--" is not a number.
m-quotient: 0
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Link to this page
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Template:Kirwan marsh model autokeywords


Introduction

History

References



Nr. of publications: --
Total citations: 0
h-index: --"--" is not a number.
m-quotient: 0


See more publications of Kirwan marsh model

Issues

Help

Input Files

Output Files

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