Maximum covariance analysis of typhoon surface wind and rainfall relationships in Taiwan
學年 97
學期 2
出版（發表）日期 2009-05-01
作品名稱 Maximum covariance analysis of typhoon surface wind and rainfall relationships in Taiwan
作品名稱（其他語言）
著者 Tsai, Hsiao-Chung; Lee, Tim Hau
單位
出版者
著錄名稱、卷期、頁數 J. Appl. Meteor. Climatol 48, pp.997–1016
摘要 The multivariate relationships between hourly surface wind and rainfall observations during typhoons affecting Taiwan have been investigated with maximum covariance analysis (MCA). Historical surface observations from 1987 to 2004 are used when typhoon centers were located inside the domain of 19°–28°N, 117°–127°E. The three leading MCA modes explain 70%, 20.6%, and 7.6% of the squared covariance fraction, and the correlation coefficients are 0.59, 0.48, and 0.49, respectively. The wind directions of the three leading positive modes are 1) northwesterly flow perpendicular to the Snow Mountain Range (SMR), 2) southwesterly flow toward the river valleys of the southwestern Central Mountain Range (CMR) and the southern SMR, and 3) easterly flow toward the northeastern SMR and the northern CMR. The rainfall patterns of the three principal modes reveal the contrast between the windward and the leeward sides of the mountain ranges. Based on the MCA singular vectors, historical typhoon surface wind patterns are categorized into major types. The results show that the three major wind types consist of 53% of the data, with 25%, 9%, and 19%, respectively, for these wind types. Furthermore, the analyses of the corresponding surface air temperatures, relative humidities, and air pressures also reveal contrasting patterns between the windward and leeward sides.
關鍵字 Hurricanes;Tropical cyclones;Asia;Rainfall;Wind;Statistical techniques
語言 zh_TW
ISSN
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 TSAI, HSIAO-CHUNG
審稿制度 否
國別 TWN
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/104328 )