臺風“利奇馬”與“云娜”對浙江風雨影響的對比分析

doi:10.12306/2019jms.0075

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臺風“利奇馬”與“云娜”對浙江風雨影響的對比分析
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                        10.12306/2019jms.0075
                    
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中圖分類號:P458.1+24
基金項目:臺州市路橋區(qū)科技計劃項目(2017A23001)

Contrast analysis of effects of typhoon “Lekima” and “Rananim” on precipitation and wind in Zhejiang Province

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利用浙江省自動站氣象要素資料、FNL全球分析資料和雷達資料,對比分析路徑相似的2019年臺風"利奇馬"和2004年臺風"云娜"給浙江帶來的影響。結果表明:"利奇馬"風雨大值區(qū)位于浙東和浙北,"云娜"風雨大值區(qū)位于浙東和浙南;"利奇馬"帶來的整體降水比"云娜"帶來的降水大,但單站雨量極值"云娜"強于"利奇馬";極端大風"利奇馬"強于"云娜"。究其原因與臺風登陸時的強度、登陸后移動路徑、滯留時間等有很大關系。環(huán)境場的不同對臺風路徑產生影響,也影響臺風的不對稱結構,進而影響臺風帶來的風雨分布。極端降水與降水條件和臺風滯留時間有很大關系,極端大風與臺風自身結構和強度、海島位置有關。

Abstract:

By using meteorological data from medium-scale automatic meteorological stations in Zhejiang, the FNL operational global analysis data, and the radar data. The effects of Typhoon "Lekima" (2019) and "Rananim" (2004) on Zhejiang Province were comparatively analyzed. Results show that the center of precipitation and wind of Lekima is mostly distributed in the eastern and northern Zhejiang, but "Rananim" is mostly in the eastern and southern Zhejiang. The average rainfall of "Lekima" is more than that of "Rananim", but the extreme precipitation in one station is less than "Rananim". The extreme wind of "Lekima" is stronger than that of "Rananim", what is related to the intensity of typhoon landing, the track after landing, detention time in a place, and so on. Different environmental fields have impacts on typhoon track, asymmetric structure of typhoon and the distribution of precipitation and wind brought by typhoon. Extreme precipitation is closely related to precipitation conditions and influencing time. Extreme strong wind is related to the structure and intensity of typhoon and the location of islands.

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倪鐘萍,王鵬,黃曉龍,曹翔.臺風“利奇馬”與“云娜”對浙江風雨影響的對比分析.氣象科學,2021,41(2):172-182 NI Zhongping, WANG Peng, HUANG Xiaolong, CAO Xiang. Contrast analysis of effects of typhoon “Lekima” and “Rananim” on precipitation and wind in Zhejiang Province. Journal of the Meteorological Sciences,2021,41(2):172-182

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收稿日期:2019-09-21
最后修改日期:2019-10-24
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在線發(fā)布日期: 2021-05-14
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