Weather radar network benefit model for flash flood casualty reduction
Author(s)Cho, John Y.; Kurdzo, James M.
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A monetized flash flood casualty reduction benefit model is constructed for application to meteorological radar networks. Geospatial regression analyses show that better radar coverage of the causative rainfall improves flash flood warning performance. Enhanced flash flood warning performance is shown to decrease casualty rates. Consequently, these two effects in combination allow a model to be formed that links radar coverage to flash flood casualty rates. When this model is applied to the present-day contiguous U.S. weather radar network, results yield a flash flood–based benefit of $316 million (M) yr−1. The remaining benefit pools are more modest ($13 M yr−1 for coverage improvement and $69 M yr−1 maximum for all areas of radar quantitative precipitation estimation improvements), indicative of the existing weather radar network’s effectiveness in supporting the flash flood warning decision process. ©2020 Keywords: radars/radar observations; regression analysis; economic value; flood events; geographic information systems (gis); societal impacts
Journal of applied meteorology and climatology
American Meteorological Society
Cho, John Y.N. and James M. Kurdzo, "Weather radar network benefit model for flash flood casualty reduction." Journal of applied meteorology and climatology 59, 4 (March 2020): p. 589-604 doi 10.1175/JAMC-D-19-0176.1 ©2020 Author(s)
Final published version