JpGU-AGU Joint Meeting 2017

講演情報

[EE] ポスター発表

セッション記号 A (大気水圏科学) » A-AS 大気科学・気象学・大気環境

[A-AS08] [EE] 雲降水過程の統合的理解に向けて

2017年5月23日(火) 13:45 〜 15:15 ポスター会場 (国際展示場 7ホール)

コンビーナ:鈴木 健太郎(東京大学大気海洋研究所)、高薮 縁(東京大学 大気海洋研究所)、廣田 渚郎(University of Tokyo)、Tomoki Miyakawa(Atmosphere and Ocean Research Institute University of Tokyo)

[AAS08-P11] Feasibility Assessment of Heavy Rainfall Forecast Using GPS-Derived ZTDs

*LiChun Tseng1Shen Yu Hsiao1ChunMin Shih1LiPing Li1Chang Jung Chieh1FENG SHIH LIN1 (1.National Chung Hsing University)

キーワード:GPS, ZTD, heavy rain forecast, typhoon disaster prevention

This study focuses on the correlation between Zenith Total Delays (ZTDs) derived from global positioning system (GPS), and rainfalls. The feasibility assessment of heavy rain forecast by GPS-derived ZTDs during typhoon events are subsequently analyzed. The study period are selected during the strong typhoon events in recent years. We use the method of Point Precise Positioning (PPP) with the software “Bernese 5.2” to compute ZTDs in 129 GPS stations during study period. The ZTD results are both compared with those from University of the Atmospheric Research (UCAR), and the rainfall data from the rainfall stations of Central Weather Bureau, Taiwan. We currently have preliminarily analyzed the correlation between ZTDs and the rainfalls at 18 GPS-rainfall stations ( See the attached Figure ) during the period of Typhoon Soudelor, 2015. We conclude that heavy rain forecast by GPS-derived ZTD has great potential and it is worth doing further research for typhoon disaster prevention.