Model:TopoFlow-Diversions: Difference between revisions
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{{Input - Output description | {{Input - Output description | ||
|Describe input parameters=For sources and sinks, the following information must be provided, each on its own line: | |||
ID (source pixel ID as long integer; calendar index) | |||
nd (number of durations and flow rates) | |||
durations (vector of durations in minutes) | |||
flow rates (vector of discharges in m^3/sec) | |||
For canals, the following information must be provided, again with each entry on a separate line in the text file: | |||
ID1 (start pixel ID as long integer; calendar index) | |||
ID2 (end pixel ID as long integer; calendar index) | |||
time (travel time between ID1 and ID2, in minutes) | |||
nd (number of durations and flow rates) | |||
durations (vector of durations in minutes) | |||
flow rates (vector of discharges in m^3/sec) | |||
Canals are currently assumed to be lossless, so that the flow rates at the two ends are identical, but lagged by the travel time. | |||
The behavior of this component is controlled with a configuration (CFG) file, which may point to other files that contain input data. Here is a sample configuration (CFG) file for this component: | |||
Method code: 0 | |||
Method name: Standard | |||
Use sources: 0 Treynor_sources.txt [N/A] | |||
Use sinks: 0 Treynor_sinks.txt [N/A] | |||
Use canals: 0 Treynor_canals.txt [N/A] | |||
|Output format=ASCII, Binary | |Output format=ASCII, Binary | ||
|Pre-processing software needed?=Yes | |Pre-processing software needed?=Yes | ||
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|Other visualization software=VisIt | |Other visualization software=VisIt | ||
}} | }} | ||
{{Process description model}} | {{Process description model | ||
{{Model testing}} | |Describe length scale and resolution constraints=Recommended grid cell size is around 100 meters, but can be parameterized to run with a wide range of grid cell sizes. DEM grid dimensions are typically less than 1000 columns by 1000 rows. | ||
|Describe time scale and resolution constraints=The basic stability condition is: dt < (dx / u_min), where dt is the timestp, dx is the grid cell size and u_min is the smallest velocity in the grid. This ensures that flow cannot cross a grid cell in less than one time step. Typical timesteps are on the order of seconds to minutes. Model can be run for a full year or longer, if necessary. | |||
|Describe any numerical limitations and issues=This model/component needs more rigorous testing. | |||
}} | |||
{{Model testing | |||
|Describe available calibration data sets=This model/component is typically not calibrated to fit data, but is run with a best guess or measured value for each input parameter. | |||
|Describe available test data sets=Available test data sets: | |||
* Treynor watershed, in the Nishnabotna River basin, Iowa, USA. | |||
* (Two large rainfall events.) | |||
* Small basin in Kentucky. | |||
* Inclined plane for testing. | |||
* Arctic watershed data from Larry Hinzman (UAF). | |||
* See /data/progs/topoflow/3.0/data on CSDMS cluster. | |||
|Describe ideal data for testing=Several test datasets are stored on the CSDMS cluster at: /data/progs/topoflow/3.0/data. | |||
}} | |||
{{Users groups model | {{Users groups model | ||
|Do you have current or future plans for collaborating with other researchers?=Collaborators include: Larry Hinzman (UAF), Bob Bolton, Anna Liljedahl (UAF), Stefan Pohl, Tom Over and others | |Do you have current or future plans for collaborating with other researchers?=Collaborators include: Larry Hinzman (UAF), Bob Bolton, Anna Liljedahl (UAF), Stefan Pohl, Tom Over and others |
Revision as of 15:12, 16 February 2010
Contact
Name | Scott Peckham |
Type of contact | Model developer |
Institute / Organization | CSDMS, INSTAAR, University of Colorado |
Postal address 1 | 1560 30th street |
Postal address 2 | |
Town / City | Boulder |
Postal code | 80305 |
State | Colorado |
Country | USA"USA" is not in the list (Afghanistan, Albania, Algeria, Andorra, Angola, Antigua and Barbuda, Argentina, Armenia, Australia, Austria, ...) of allowed values for the "Country" property. |
Email address | Scott.Peckham@colorado.edu |
Phone | 303-492-6752 |
Fax |
TopoFlow-Diversions
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