Model:CREST: Difference between revisions
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|One-line model description=The Coupled Routing and Excess STorage (CREST) model is a distributed hydrologic model developed to simulate the spatial and temporal variation of atmospheric, land surface, and subsurface water fluxes and storages by cell-to-cell simulation. | |One-line model description=The Coupled Routing and Excess STorage (CREST) model is a distributed hydrologic model developed to simulate the spatial and temporal variation of atmospheric, land surface, and subsurface water fluxes and storages by cell-to-cell simulation. | ||
|Extended model description=The Coupled Routing and Excess STorage (CREST) distributed hydrological model is a hybrid modeling strategy that was recently developed by the University of Oklahoma (http://hydro.ou.edu) and NASA SERVIR Project Team. CREST simulates the spatiotemporal variation of water and energy fluxes and storages on a regular grid with the grid cell resolution being user-defined, thereby enabling global- and regional-scale applications. The scalability of CREST simulations is accomplished through sub-grid scale representation of soil moisture storage capacity (using a variable infiltration curve) and runoff generation processes (using linear reservoirs). The CREST model was initially developed to provide online global flood predictions with relatively coarse resolution, but it is also applicable at small scales, such as single basins. This README file and the accompanying code concentrates on and tests the model at the small scale. The CREST Model can be forced by gridded potential evapotranspiration and precipitation datasets such as, satellite-based precipitation estimates, gridded rain gauge observations, remote sensing platforms such as weather radar, and quantitative precipitation forecasts from numerical weather prediction models. The representation of the primary water fluxes such as infiltration and routing are closely related to the spatially variable land surface characteristics (i.e., vegetation, soil type, and topography). The runoff generation component and routing scheme are coupled, thus providing realistic interactions between atmospheric, land surface, and subsurface water. | |Extended model description=The Coupled Routing and Excess STorage (CREST) distributed hydrological model is a hybrid modeling strategy that was recently developed by the University of Oklahoma (http://hydro.ou.edu) and NASA SERVIR Project Team. CREST simulates the spatiotemporal variation of water and energy fluxes and storages on a regular grid with the grid cell resolution being user-defined, thereby enabling global- and regional-scale applications. The scalability of CREST simulations is accomplished through sub-grid scale representation of soil moisture storage capacity (using a variable infiltration curve) and runoff generation processes (using linear reservoirs). The CREST model was initially developed to provide online global flood predictions with relatively coarse resolution, but it is also applicable at small scales, such as single basins. This README file and the accompanying code concentrates on and tests the model at the small scale. The CREST Model can be forced by gridded potential evapotranspiration and precipitation datasets such as, satellite-based precipitation estimates, gridded rain gauge observations, remote sensing platforms such as weather radar, and quantitative precipitation forecasts from numerical weather prediction models. The representation of the primary water fluxes such as infiltration and routing are closely related to the spatially variable land surface characteristics (i.e., vegetation, soil type, and topography). The runoff generation component and routing scheme are coupled, thus providing realistic interactions between atmospheric, land surface, and subsurface water. | ||
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{{Model keywords | |||
|Model keywords=continental | |||
}} | }} | ||
{{Model technical information | {{Model technical information | ||
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* DEM | * DEM | ||
* Precipitation | * Precipitation | ||
* Potential Evapotranspiration | * Potential Evapotranspiration | ||
|Input format=ASCII, Binary | |Input format=ASCII, Binary | ||
|Describe output parameters=CREST outputs consist of several variables, including: | |Describe output parameters=CREST outputs consist of several variables, including: | ||
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*relative change of the six reservoir levels representing actual evapotranspiration from the canopy and soil layers, | *relative change of the six reservoir levels representing actual evapotranspiration from the canopy and soil layers, | ||
*overland and interflow excess rain, | *overland and interflow excess rain, | ||
* overland and interflow runoff. | * overland and interflow runoff. | ||
|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=Processes represented by CREST are: Canopy interception, excess rain and infiltration water, runoff, evapotranspiration | |Describe processes represented by the model=Processes represented by CREST are: Canopy interception, excess rain and infiltration water, runoff, evapotranspiration | ||
|Describe key physical parameters and equations=-- | |Describe key physical parameters and equations=-- | ||
|Describe length scale and resolution constraints=-- | |Describe length scale and resolution constraints=-- | ||
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|Provide key papers on model if any=Wang, J., Y. Hong, L. Li, J.J. Gourley, K. Yilmaz, S. Khan, F. S. Policelli, R. F. Adler, S. Habib, D. Irwn, T. Korme, and L. Okello, 2009, The Coupled Routing and Excess STorage (CREST) Distributed Hydrological Model, J. Hydrology (submitted) | |Provide key papers on model if any=Wang, J., Y. Hong, L. Li, J.J. Gourley, K. Yilmaz, S. Khan, F. S. Policelli, R. F. Adler, S. Habib, D. Irwn, T. Korme, and L. Okello, 2009, The Coupled Routing and Excess STorage (CREST) Distributed Hydrological Model, J. Hydrology (submitted) | ||
|Manual model available=Yes | |Manual model available=Yes | ||
|Model manual=CREST Readme v1.6 07 22 2010.pdf, | |Model manual=CREST Readme v1.6 07 22 2010.pdf, | ||
|Model website if any=http://hydro.ou.edu/CREST_downloads.html | |Model website if any=http://hydro.ou.edu/CREST_downloads.html | ||
|Model forum=-- | |Model forum=-- | ||
Revision as of 16:44, 21 March 2011
Contact
| Name | Jiahu Wang |
| Type of contact | Technical contact |
| Institute / Organization | University of Oklahoma |
| Postal address 1 | Center for Natural Hazard and Disaster Study, National Weather Center Suite 3630 |
| Postal address 2 | |
| Town / City | Norman |
| Postal code | 73019 |
| State | Oklahoma |
| 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 | yanghong@ou.edu |
| Phone | +1-405-325-3644 |
| Fax |
CREST
Metadata
Summary
continental, Technical specs
In/Output
Process
Testing
Other
IntroductionHistoryPapersIssuesHelpInput FilesOutput FilesDownloadSource |
