Prediction of Convective Storms at Convection-Resolving 1 km Resolution over Continental United States with Radar Data Assimilation : An Example Case of 26 May 2008 and Precipitation Forecasts from Spring 2009
Joint Authors
Brewster, Keith
Thomas, Kevin W.
Kong, Fanyou
Droegemeier, Kelvin K.
Xue, Ming
Wang, Yunheng
Gao, Jidong
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-12-17
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
For the first time ever, convection-resolving forecasts at 1 km grid spacing were produced in realtime in spring 2009 by the Center for Analysis and Prediction of Storms (CAPS) at the University of Oklahoma.
The forecasts assimilated both radial velocity and reflectivity data from all operational WSR-88D radars within a domain covering most of the continental United States.
In preparation for the realtime forecasts, 1 km forecast tests were carried out using a case from spring 2008 and the forecasts with and without assimilating radar data are compared with corresponding 4 km forecasts produced in realtime.
Significant positive impact of radar data assimilation is found to last at least 24 hours.
The 1 km grid produced a more accurate forecast of organized convection, especially in structure and intensity details.
It successfully predicted an isolated severe-weather-producing storm nearly 24 hours into the forecast, which all ten members of the 4 km real time ensemble forecasts failed to predict.
This case, together with all available forecasts from 2009 CAPS realtime forecasts, provides evidence of the value of both convection-resolving 1 km grid and radar data assimilation for severe weather prediction for up to 24 hours.
American Psychological Association (APA)
Xue, Ming& Kong, Fanyou& Thomas, Kevin W.& Gao, Jidong& Wang, Yunheng& Brewster, Keith…[et al.]. 2013. Prediction of Convective Storms at Convection-Resolving 1 km Resolution over Continental United States with Radar Data Assimilation : An Example Case of 26 May 2008 and Precipitation Forecasts from Spring 2009. Advances in Meteorology،Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-458139
Modern Language Association (MLA)
Xue, Ming…[et al.]. Prediction of Convective Storms at Convection-Resolving 1 km Resolution over Continental United States with Radar Data Assimilation : An Example Case of 26 May 2008 and Precipitation Forecasts from Spring 2009. Advances in Meteorology No. 2013 (2013), pp.1-9.
https://search.emarefa.net/detail/BIM-458139
American Medical Association (AMA)
Xue, Ming& Kong, Fanyou& Thomas, Kevin W.& Gao, Jidong& Wang, Yunheng& Brewster, Keith…[et al.]. Prediction of Convective Storms at Convection-Resolving 1 km Resolution over Continental United States with Radar Data Assimilation : An Example Case of 26 May 2008 and Precipitation Forecasts from Spring 2009. Advances in Meteorology. 2013. Vol. 2013, no. 2013, pp.1-9.
https://search.emarefa.net/detail/BIM-458139
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458139