Model:Caesar: Difference between revisions
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|State=NO STATE | |State=NO STATE | ||
|Country=United Kingdom | |Country=United Kingdom | ||
|Email address=T.Coulthard@hull.ac.uk | |Email address=T.Coulthard@hull.ac.uk | ||
}} | }} | ||
{{Model identity | {{Model identity | ||
|Model type=Modular | |Model type=Modular | ||
|Categories=Terrestrial | |Categories=Terrestrial | ||
|One-line model description=Cellular landscape evolution model | |One-line model description=Cellular landscape evolution model | ||
|Extended model description=CAESAR is a cellular landscape evolution model, with an emphasis on fluvial processes, including flow routing, multi grainsize sediment transport. It models morphological change in river catchments. | |Extended model description=CAESAR is a cellular landscape evolution model, with an emphasis on fluvial processes, including flow routing, multi grainsize sediment transport. It models morphological change in river catchments. | ||
}} | }} | ||
{{Model technical information | {{Model technical information | ||
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|Does model development still take place?=Yes | |Does model development still take place?=Yes | ||
|Model availability=As code, As teaching tool, As executable | |Model availability=As code, As teaching tool, As executable | ||
|Source code availability=Through | |Source code availability=Through web repository | ||
|Source web address=http://www.coulthard.org.uk/downloads/visualcaesar.htm | |||
|Program license type=Other | |Program license type=Other | ||
|Program license type other=GNU | |Program license type other=GNU | ||
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|IRF interface=No not possible | |IRF interface=No not possible | ||
|Memory requirements=>512MB | |Memory requirements=>512MB | ||
|Typical run time=5 min to 50 days | |Typical run time=5 min to 50 days | ||
}} | }} | ||
{{Input - Output description | {{Input - Output description | ||
|Describe input parameters=DEM as ascii grid (output from arcGIS), | |Describe input parameters=DEM as ascii grid (output from arcGIS), | ||
Rainfall data as a space separated ascii file (straightforward list), Inputs of water/sediment in an ascii file. Other single value parameter inputs for grainsize, flow parameters, slope processes etc.. | Rainfall data as a space separated ascii file (straightforward list), Inputs of water/sediment in an ascii file. Other single value parameter inputs for grainsize, flow parameters, slope processes etc.. | ||
|Input format=ASCII | |Input format=ASCII | ||
|Describe output parameters=ascii grids (readable into arcGIS) and google earth images of: DEM, flow depth, surface grainsize, shear stress, vegetation cover, velocity. | |Describe output parameters=ascii grids (readable into arcGIS) and google earth images of: DEM, flow depth, surface grainsize, shear stress, vegetation cover, velocity. | ||
Also time series of water discharge and sediment discharge (across 9 grainsizes) at user chosen interval. | Also time series of water discharge and sediment discharge (across 9 grainsizes) at user chosen interval. | ||
Also visual output to AVI file. | Also visual output to AVI file. | ||
|Output format=ASCII | |Output format=ASCII | ||
|Pre-processing software needed?=No | |Pre-processing software needed?=No | ||
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|Visualization software needed?=No | |Visualization software needed?=No | ||
|If above answer is yes=ESRI | |If above answer is yes=ESRI | ||
|Other visualization software=but you can use ESRI (ArcGIS) | |Other visualization software=but you can use ESRI (ArcGIS) | ||
}} | }} | ||
{{Process description model | {{Process description model | ||
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Slope processes (creep, enhanced creep and mass movement) | Slope processes (creep, enhanced creep and mass movement) | ||
Vegetation growth | Vegetation growth | ||
Aeolian transport (under development - slab dune model) | Aeolian transport (under development - slab dune model) | ||
|Describe key physical parameters and equations=Flow depths calculated using version of mannings implemented across a cellular grid using a scanning algorithm. | |Describe key physical parameters and equations=Flow depths calculated using version of mannings implemented across a cellular grid using a scanning algorithm. | ||
Sediment tranport using either Einstein or Wilcock and Crowe functions | Sediment tranport using either Einstein or Wilcock and Crowe functions | ||
Slope model using simple slab failure and psuedo USLE implementation | Slope model using simple slab failure and psuedo USLE implementation | ||
Dune model adaption of DECAL and Werner slab model | Dune model adaption of DECAL and Werner slab model | ||
|Describe length scale and resolution constraints=Has been applied to catchments ranging from 1km^2 to 500km^2, at grid resolutions ranging from 1m to 50m. | |Describe length scale and resolution constraints=Has been applied to catchments ranging from 1km^2 to 500km^2, at grid resolutions ranging from 1m to 50m. | ||
|Describe time scale and resolution constraints=The model has simulated periods from 1 day to 9000 years. | |Describe time scale and resolution constraints=The model has simulated periods from 1 day to 9000 years. | ||
The length of run is largely contingent on the number of grid cells, thus a balance between resoltion and area of study. A small catchment with a coarse resolution will run very fast. Increase the area or make grid cells smaller and run times will increase. | The length of run is largely contingent on the number of grid cells, thus a balance between resoltion and area of study. A small catchment with a coarse resolution will run very fast. Increase the area or make grid cells smaller and run times will increase. | ||
|Describe any numerical limitations and issues=Run times can be long (60 +days for large areas over many 100's of years). | |Describe any numerical limitations and issues=Run times can be long (60 +days for large areas over many 100's of years). | ||
Flow model is steady state | Flow model is steady state | ||
}} | }} | ||
{{Model testing | {{Model testing | ||
|Describe available calibration data sets=Tested on several catchments in UK over long and short time scales. | |Describe available calibration data sets=Tested on several catchments in UK over long and short time scales. | ||
|Describe available test data sets=none yet; in development | |Describe available test data sets=none yet; in development | ||
|Describe ideal data for testing=Flow and sediment discharge data, images of topographic change | |Describe ideal data for testing=Flow and sediment discharge data, images of topographic change | ||
}} | }} | ||
{{Users groups model | {{Users groups model | ||
|Do you have current or future plans for collaborating with other researchers?=Yes, I am happy to collaborate with any potential users. There is a long history of CAESAR being take up by others including researchers in Italy, France, Spain, NZ, Australia, USA. | |Do you have current or future plans for collaborating with other researchers?=Yes, I am happy to collaborate with any potential users. There is a long history of CAESAR being take up by others including researchers in Italy, France, Spain, NZ, Australia, USA. | ||
}} | }} | ||
{{Documentation model | {{Documentation model | ||
|Provide key papers on model if any=Van De Wiel, M.J., Coulthard, T.J., Macklin, M.G., Lewin, J. (2007) Embedding reach-scale fluvial dynamics within the CAESAR cellular automaton landscape evolution model. Geomorphology, 90 (3-4), pp. 283-301. | |Provide key papers on model if any=Van De Wiel, M.J., Coulthard, T.J., Macklin, M.G., Lewin, J. (2007) Embedding reach-scale fluvial dynamics within the CAESAR cellular automaton landscape evolution model. Geomorphology, 90 (3-4), pp. 283-301. | ||
Coulthard, T. J. Macklin, M. G. & Kirkby, M. J. (2002) Simulating upland river catchment and alluvial fan evolution. Earth Surface Processes and Landforms. 27, 269-288. | Coulthard, T. J. Macklin, M. G. & Kirkby, M. J. (2002) Simulating upland river catchment and alluvial fan evolution. Earth Surface Processes and Landforms. 27, 269-288. | ||
|Manual model available=Yes | |Manual model available=Yes | ||
|Model website if any=http://www.coulthard.org.uk | |Model website if any=http://www.coulthard.org.uk |
Revision as of 12:15, 27 April 2010
Contact
Name | Tom Coulthard |
Type of contact | Model developer |
Institute / Organization | University of Hull |
Postal address 1 | Cottingham Road |
Postal address 2 | |
Town / City | Hull |
Postal code | HU6 7RX |
State | NO STATE |
Country | United Kingdom |
Email address | T.Coulthard@hull.ac.uk |
Phone | |
Fax |
Caesar
Metadata
Summary
Technical specs
In/Output
Process
Testing
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