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Comparative Study of the Storm Centered Areal Reduction Factors by Storm Types
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 Title & Authors
Comparative Study of the Storm Centered Areal Reduction Factors by Storm Types
Lee, Dongjoo; Hyun, Sukhoon; Kang, Boosik;
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 Abstract
The Fixed Area ARFs (Area Reduction Factors) method has limitations in providing exact information about spatial distribution due to the lack of enough density of rain gauge stations. In this study the storm-centered ARF was evaluated between frontal and typhoon storm events utilizing radar precipitation. In estimating storm-centered ARFs, in order to consider the horizontal advection, direction, and spatial distribution of rain cells, the rotational angle of rainfall of each rainfall event and the optimum areal rainfall within the spatial rain cell envelope was taken into account. Compared with the frontal storm, the ARF of typhoon storm shows narrow range of variability. It is noted that the ARFs of frontal storm increases with the rainfall duration, but those of typhoon storm shows opposite pattern. As a result the typhoon ARFs appear greater than frontal ARFs for 1~3 hours of duration, but less for more than 6 hours of duration.
 Keywords
Dual polarization radar;Radar rainfall;Areal reduction factor;Frontal rainfall;Typhoon sanba;
 Language
Korean
 Cited by
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