The Wind Profile Characteristics of Super Typhoon Lekima Based on Field Measurement

被引:0
|
作者
Wang, Yanru [1 ]
Qi, Qianqian [2 ]
Zheng, Shuqin [3 ]
Fu, Bin [1 ]
Zhang, Maoyu [1 ]
Wang, Xu [4 ]
Zhang, Chuanxiong [3 ]
Zhou, Lei [4 ]
机构
[1] Taizhou Univ, Sch Civil Engn, Jiaojiang 318000, Peoples R China
[2] Xinyang Normal Univ, Sch Civil Engn, Xinyang 464000, Peoples R China
[3] Wenzhou Univ Technol, Key Lab Intelligent Lifeline Protect & Emergency T, Wenzhou 150080, Peoples R China
[4] Chongqing Jiaotong Univ, State Key Lab Mt Bridge & Tunnel Engn, Chongqing 400074, Peoples R China
关键词
strong typhoon; wind profile; evolution; wind parameters; field measurements;
D O I
10.3390/atmos15050558
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Many cities in coastal areas are prone to typhoon disasters due to their location on the Pacific storm path, and the direct effect of catastrophic winds can lead to the destruction of low-rise buildings and severe damage to high-rise structures. The purpose of this study was to enhance the understanding of boundary layer wind profiles of strong typhoons in coastal areas and reduce property losses and casualties caused by wind disasters. Based on the field measurements of wind profile acoustic radar in coastal areas, the variation characteristics of the boundary layer wind profile during the passage of super typhoon Lekima were first studied in depth, and the evolution law of the typhoon boundary layer profile was summarized. Then, the effects of typhoon horizontal structure, topography, wind speed, and time distance on the characteristics of the typhoon profile were discussed, respectively. Finally, the evolution characteristics of wind profile parameters were obtained by fitting three wind profile theoretical models. Due to the strong variability of typhoon profile morphology, the theoretical model of wind profile is only applicable to the wind profile from the bottom to the low-level jet height of typhoons, while wind parameters are closely related to the spatial location of the typhoon wind field.
引用
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页数:19
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