Model:Caesar: Difference between revisions
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{{Modeler information | |||
|First name=Tom | |||
|Last name=Coulthard | |||
|Type of contact=Model developer | |||
|Institute / Organization=University of Hull | |||
|Postal address 1=Cottingham Road | |||
|Town / City=Hull | |||
|Postal code=HU6 7RX | |||
|State=NO STATE | |||
|Country=United Kingdom | |||
|Email address=T.Coulthard@hull.ac.uk | |||
}} | |||
{{Model identity | |||
|Model type=Modular | |||
|Categories=Terrestrial | |||
|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. | |||
}} | |||
{{Model technical information | |||
|Supported platforms=Linux, Windows | |||
|Programming language=C | |||
|Other program language=C# | |||
|Start year development=1996 | |||
|Does model development still take place?=Yes | |||
|Model availability=As code, As teaching tool, As executable | |||
|Source code availability=Through owner | |||
|Program license type=Other | |||
|Program license type other=GNU | |||
|OpenMI compliant=No not possible | |||
|CCA component=No not possible | |||
|IRF interface=No not possible | |||
|Memory requirements=>512MB | |||
|Typical run time=5 min to 50 days | |||
}} | |||
{{Input - Output description | |||
|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.. | |||
|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. | |||
Also time series of water discharge and sediment discharge (across 9 grainsizes) at user chosen interval. | |||
Also visual output to AVI file. | |||
|Output format=ASCII | |||
|Pre-processing software needed?=No | |||
|Post-processing software needed?=No | |||
|Visualization software needed?=No | |||
|If above answer is yes=ESRI | |||
|Other visualization software=but you can use ESRI (ArcGIS) | |||
}} | |||
{{Process description model | |||
|Describe processes represented by the model=2d multiple flow direction steady state flow model | |||
Erosion and deposition over 9 separate grainsizes | |||
Bedload and suspended load sediment transport | |||
Slope processes (creep, enhanced creep and mass movement) | |||
Vegetation growth | |||
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. | |||
Sediment tranport using either Einstein or Wilcock and Crowe functions | |||
Slope model using simple slab failure and psuedo USLE implementation | |||
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 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. | |||
|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 | |||
}} | |||
{{Model testing | |||
|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 ideal data for testing=Flow and sediment discharge data, images of topographic change | |||
}} | |||
{{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. | |||
}} | |||
{{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. | |||
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 | |||
|Model website if any=http://www.coulthard.org.uk | |||
}} | |||
{{Additional comments model}} | |||
{{Infobox Model | {{Infobox Model | ||
|model name = Caesar | |model name = Caesar |
Revision as of 14:05, 19 September 2009
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
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