Simulation of Flash-Flood-Producing Storm Events in Saudi Arabia Using the Weather Research and Forecasting Model

Handle URI:
http://hdl.handle.net/10754/555877
Title:
Simulation of Flash-Flood-Producing Storm Events in Saudi Arabia Using the Weather Research and Forecasting Model
Authors:
Deng, Liping; McCabe, Matthew ( 0000-0002-1279-5272 ) ; Stenchikov, Georgiy L. ( 0000-0001-9033-4925 ) ; Evans, Jason P.; Kucera, Paul A.
Abstract:
The challenges of monitoring and forecasting flash-flood-producing storm events in data-sparse and arid regions are explored using the Weather Research and Forecasting (WRF) Model (version 3.5) in conjunction with a range of available satellite, in situ, and reanalysis data. Here, we focus on characterizing the initial synoptic features and examining the impact of model parameterization and resolution on the reproduction of a number of flood-producing rainfall events that occurred over the western Saudi Arabian city of Jeddah. Analysis from the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim) data suggests that mesoscale convective systems associated with strong moisture convergence ahead of a trough were the major initial features for the occurrence of these intense rain events. The WRF Model was able to simulate the heavy rainfall, with driving convective processes well characterized by a high-resolution cloud-resolving model. The use of higher (1 km vs 5 km) resolution along the Jeddah coastline favors the simulation of local convective systems and adds value to the simulation of heavy rainfall, especially for deep-convection-related extreme values. At the 5-km resolution, corresponding to an intermediate study domain, simulation without a cumulus scheme led to the formation of deeper convective systems and enhanced rainfall around Jeddah, illustrating the need for careful model scheme selection in this transition resolution. In analysis of multiple nested WRF simulations (25, 5, and 1 km), localized volume and intensity of heavy rainfall together with the duration of rainstorms within the Jeddah catchment area were captured reasonably well, although there was evidence of some displacements of rainstorm events.
KAUST Department:
Physical Sciences and Engineering (PSE) Division; Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division
Citation:
Simulation of Flash-Flood-Producing Storm Events in Saudi Arabia Using the Weather Research and Forecasting Model 2015, 16 (2):615 Journal of Hydrometeorology
Publisher:
American Meteorological Society
Journal:
Journal of Hydrometeorology
Issue Date:
1-May-2015
DOI:
10.1175/JHM-D-14-0126.1
Type:
Article
ISSN:
1525-755X; 1525-7541
Additional Links:
http://journals.ametsoc.org/doi/abs/10.1175/JHM-D-14-0126.1
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Physical Sciences and Engineering (PSE) Division; Water Desalination and Reuse Research Center (WDRC); Water Desalination and Reuse Research Center (WDRC); Biological and Environmental Sciences and Engineering (BESE) Division; Biological and Environmental Sciences and Engineering (BESE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorDeng, Lipingen
dc.contributor.authorMcCabe, Matthewen
dc.contributor.authorStenchikov, Georgiy L.en
dc.contributor.authorEvans, Jason P.en
dc.contributor.authorKucera, Paul A.en
dc.date.accessioned2015-05-27T13:46:23Zen
dc.date.available2015-05-27T13:46:23Zen
dc.date.issued2015-05-01en
dc.identifier.citationSimulation of Flash-Flood-Producing Storm Events in Saudi Arabia Using the Weather Research and Forecasting Model 2015, 16 (2):615 Journal of Hydrometeorologyen
dc.identifier.issn1525-755Xen
dc.identifier.issn1525-7541en
dc.identifier.doi10.1175/JHM-D-14-0126.1en
dc.identifier.urihttp://hdl.handle.net/10754/555877en
dc.description.abstractThe challenges of monitoring and forecasting flash-flood-producing storm events in data-sparse and arid regions are explored using the Weather Research and Forecasting (WRF) Model (version 3.5) in conjunction with a range of available satellite, in situ, and reanalysis data. Here, we focus on characterizing the initial synoptic features and examining the impact of model parameterization and resolution on the reproduction of a number of flood-producing rainfall events that occurred over the western Saudi Arabian city of Jeddah. Analysis from the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim) data suggests that mesoscale convective systems associated with strong moisture convergence ahead of a trough were the major initial features for the occurrence of these intense rain events. The WRF Model was able to simulate the heavy rainfall, with driving convective processes well characterized by a high-resolution cloud-resolving model. The use of higher (1 km vs 5 km) resolution along the Jeddah coastline favors the simulation of local convective systems and adds value to the simulation of heavy rainfall, especially for deep-convection-related extreme values. At the 5-km resolution, corresponding to an intermediate study domain, simulation without a cumulus scheme led to the formation of deeper convective systems and enhanced rainfall around Jeddah, illustrating the need for careful model scheme selection in this transition resolution. In analysis of multiple nested WRF simulations (25, 5, and 1 km), localized volume and intensity of heavy rainfall together with the duration of rainstorms within the Jeddah catchment area were captured reasonably well, although there was evidence of some displacements of rainstorm events.en
dc.publisherAmerican Meteorological Societyen
dc.relation.urlhttp://journals.ametsoc.org/doi/abs/10.1175/JHM-D-14-0126.1en
dc.rightsArchived with thanks to Journal of Hydrometeorologyen
dc.subjectSynoptic climatologyen
dc.subjectExtreme eventsen
dc.subjectFlood eventsen
dc.subjectCloud resolving models,en
dc.subjectModel evaluation/performanceen
dc.subjectFlood eventsen
dc.titleSimulation of Flash-Flood-Producing Storm Events in Saudi Arabia Using the Weather Research and Forecasting Modelen
dc.typeArticleen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.contributor.departmentWater Desalination and Reuse Research Center (WDRC)en
dc.contributor.departmentBiological and Environmental Sciences and Engineering (BESE) Divisionen
dc.identifier.journalJournal of Hydrometeorologyen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionClimate Change Research Centre, University of New South Wales, Sydney, New South Wales, Australiaen
dc.contributor.institutionResearch Applications Laboratory, NCAR, Boulder, Coloradoen
kaust.authorDeng, Lipingen
kaust.authorStenchikov, Georgiy L.en
kaust.authorMcCabe, Matthewen
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