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首页> 外文期刊>SOLA: Scientific Online Letters on the Atmosphere >Doppler Radar Observations of a Wintertime Anticyclonic Misocyclone Associated with Surface Wind Gust on the Coast of the Sea of Japan
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Doppler Radar Observations of a Wintertime Anticyclonic Misocyclone Associated with Surface Wind Gust on the Coast of the Sea of Japan

机译：多普勒雷达观察与日本海洋海岸表面风阵风相关的冬季反气旋杂音的观察

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On 11 December 2012, a wind gust caused an F0-intensity wind damage in the Shonai area, Yamagata Prefecture, Japan. This paper provides an overview of an anticyclonic misocyclone (i.e., anticyclonic circulation in the Doppler velocity) related to a wind gust from X-band Doppler radar data. The anticyclonic misocyclone was embedded within a cell with a spiral echo diameter of approximately 3-4 km. The misocyclone over the Sea of Japan moved southeastward at a speed of 11 m s?1, made landfall, and passed over the damaged area; this timing is consistent with the Japan Meteorological Agency (JMA) wind damage assessment. Over the damaged area, the diameter of the misocyclone in the Doppler velocity was estimated to be smaller than 893 m, and the peak tangential wind speed and the vorticity of the vortex were estimated to be at least 8 m s?1 and ?3.6 × 10?2 sec?1, respectively. This study discusses various possible explanations for the relationship between the misocyclone and wind gust and provides a first overview of a wintertime anticyclonic misocyclone associated with a surface wind gust on the coast of the Sea of Japan and may provide useful insights to the understanding of wintertime vortices.
机译：2012年12月11日，风阵风导致日本山庄县少板地区的F0强度风损伤。本文概述了与来自X波段多普勒雷达数据有关的防寒克速误报（即，多普勒速度中的反气旋循环）概述。将反障碍的杂音嵌入细胞内，螺旋回声直径约为3-4公里。日本海洋中的速度通孔以11米S的速度向东南移动？1，占地面积，并通过了受损的区域;这个时序与日本气象局（JMA）风损评估一致。在受损区域上，估计多普勒速度中的误传筒的直径小于893μm，估计峰值切向风速和涡旋的涡流均为至少8ms？1和？3.6×10 ？2秒？1。本研究探讨了对杂筒通和风阵阵风之间关系的各种可能的解释，并提供了与日本海洋海岸的表面风阵风相关的冬季反障碍的冬季反障碍的概要，并可以为冬季涡流的理解提供有用的见解。

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