Open AccessAn Extraction Method for Long-Term Tropical Cyclone Precipitation from Daily Rain Gauges
Author(s) -
Laiyin Zhu,
Steven M. Quiring
Publication year - 2017
Publication title -
journal of hydrometeorology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.733
H-Index - 123
eISSN - 1525-755X
pISSN - 1525-7541
DOI - 10.1175/jhm-d-16-0291.1
Subject(s) - tropical cyclone , precipitation , environmental science , rain gauge , meteorology , interpolation (computer graphics) , climatology , typhoon , quantitative precipitation estimation , cyclone (programming language) , flooding (psychology) , wind speed , term (time) , geology , computer science , geography , animation , psychology , physics , computer graphics (images) , quantum mechanics , field programmable gate array , computer hardware , psychotherapist
Tropical cyclone precipitation (TCP) can cause significant flooding in coastal areas around the world. This study compares multiple options of a new technique for developing a gridded daily TCP product at a spatial resolution of 0.25°. These options were evaluated using NASA’s Tropical Rainfall Measuring Mission (TRMM) Multisatellite Precipitation Analysis (TMPA) 3B42 product to determine the optimal approach. Results indicate that the technique is very sensitive to changes in wind corrections, interpolation method, and gauge density. The optimal method accounts for wind-induced gauge undercatch and uses a customized interpolation approach. It significantly reduces precipitation biases associated with gauge undercatch during windy conditions. The new TCP extraction approach can be used to examine variability and long-term trends in TCP, even in regions with relatively few gauges.