 |
| Titel |
Impacts of polarimetric radar observations on hydrologic simulation |
| VerfasserIn |
Jonathan Gourley, Zachary Flamig, Yang Hong, Terry Schuur, Scott Giangrande, Jasper Vrugt |
| Konferenz |
EGU General Assembly 2010
|
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250043657
|
|
|
|
|
|
| Zusammenfassung |
| This study presents an analysis of hydrologic simulations performed for a dataset of several rainfall-runoff events, including a 100-year event, that were captured by the polarimetric prototype of the WSR-88D radar, KOUN. The focus basin is the heavily instrumented Ft. Cobb basin in Oklahoma which features a Micronet, a network of 15 hydrometeorological stations, and four US Geological Survey stream gauges. The high-density rain gauge network was used to evaluate the polarimetric rainfall algorithms.
We also set up and rigorously calibrated the National Weather Service Office of Hydrologic Development’s 19-parameter distributed hydrologic model over a three-year period. Benchmark simulations were produced using inputs from the rain gauge-only product that was used for calibration. The hydrologic model was then forced with rainfall using the standard WSR-88D reflectivity-to-rainfall (Z-R) relation as well as recently proposed rainfall algorithms based on polarimetric variables. Ultimately, this study aims to answer: “What will polarimetric radar do for flash flood prediction?” |
|
|
|
|
|
|