Improved Stepped Frequency Microwave Radiometer Tropical Cyclone Surface Winds in Heavy Precipitation
作者： Bradley W. Klotz , Eric W. Uhlhorn
DOI: 10.1175/JTECH-D-14-00028.1
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摘要: AbstractSurface wind speeds retrieved from airborne stepped frequency microwave radiometer (SFMR) brightness temperature measurements are important for estimating hurricane intensity. The SFMR performance is highly reliable at hurricane-force speeds, but accuracy found to degrade weaker particularly in heavy precipitation. Specifically, a significant overestimation of surface these conditions, suggesting inaccurate accounting the impact rain on measured temperature. In this study, speed bias quantified over broad range operationally computed and rates, based large sample collocated retrievals global positioning system dropwindsonde surface-adjusted speeds. retrieval addressed by developing new C-band relationship between absorption rate (κ−R) National Oceanic Atmospheric Administration WP-3D aircraft tail Doppler radar r...
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