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Nhan đề: A Climatological Study of Tropical Cyclone Rainfallin Vietnam
Tác giả: Anh, Nguyen Thi Hoang
Matsumoto, Jun
Thanh, Ngo Duc
Endo, Nobuhiko
Từ khoá: Climate
Tropical climate
Việt Nam
Tùng thư/Số báo cáo: SOLA , 2012;Volume 8
Tóm tắt: This study investigated the characteristics of the rainfall associated with tropical cyclones (TCs), using the TC best-track data and daily rainfall data from15 meteorological stations for the period 1961-2008 for the coastal region of Vietnam. In addition to investigating the TC rainfall amount, we estimated the TC rain ratio and the ratio of TC heavy rainfall days (TC_R50) and interpreted these parameters for El Niño and La Niña years. Our results show that the maximum TC rainfall occurs from July to September in the northern region, whereas the total rainfall at southern stations is mainly composed of non-TC rainfall. The TC rainfall amount is concentrated in the central region, with a peak in October-November. The TC rain ratio varies from 0 to ∼25%, showing a maximum value in the region of 16°N-18°N in September. The mid-central region of Vietnam has maximum TC_R50 ratio in September-October corresponding to its highest TC frequency in the same period. DuringEl Niño (La Niña) years, the TC rain ratio and TC_R50 ratio in the central region show a significant decrease (increase) in October-November. The La Niña phases more strongly affect TC rainfall than the El Niño phases, particularly in central Vietnam.
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ISSN: 041−044
Appears in Collections:Environment

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