Journal article
An initial assessment of radar data assimilation on warm season rainfall forecasts for use in hydrologic models
Weather and forecasting, Vol.30(6), pp.1491-1520
2015
DOI: 10.1175/WAF-D-14-00125.1
Abstract
AbstractThe effect of introducing radar data assimilation into the WRF Model to improve high-resolution rainfall forecasts that are used for flash flood forecasting is analyzed. The authors selected 12 heavy rainfall events and performed two WRF 24-h simulations that produced quantitative precipitation forecasts (QPFs) for each, one using the standard configuration in forecast mode (QPF-Cold) and one using radar data assimilated at initialization (QPF-Hot). Simulation outputs are compared with NWS stage IV QPEs for storm placement, area over threshold coverage, and equitable threat scores. The two QPF products and stage IV data are used to force the distributed hydrological model CUENCAS for the same 800 km × 800 km domain centered over Iowa (and to calculate peak flows across the river network). The hydrological model responses to the three products are compared in terms of spatial location and flood intensity. In general, QPF-Hot outperformed QPF-Cold in replicating stage IV QPE statistics. However, QPF...
Details
- Title: Subtitle
- An initial assessment of radar data assimilation on warm season rainfall forecasts for use in hydrologic models
- Creators
- Ben A MoserWilliam A GallusRicardo Mantilla
- Resource Type
- Journal article
- Publication Details
- Weather and forecasting, Vol.30(6), pp.1491-1520
- DOI
- 10.1175/WAF-D-14-00125.1
- ISSN
- 1520-0434
- eISSN
- 1520-0434
- Language
- English
- Date published
- 2015
- Academic Unit
- Civil and Environmental Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9983992085002771
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