Response of Storm Tracks to Bimodal Kuroshio Path States South of Japan
Response of Storm Tracks to Bimodal Kuroshio Path States South of Japan
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DOI：
10.1175/jcli-d-12-00326.1
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发表时间：
2012-11
影响因子：
4.9
通讯作者：
Hirohiko Nakamura;A. Nishina;S. Minobe
中科院分区：
文献类型：
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作者：
Hirohiko Nakamura;A. Nishina;S. Minobe
摘要日本南部近海海面温度锋面发生了大的纬向移动，这与黑潮的大弯曲路径和直线路径之间的过渡有关。利用1969/70-2008/09年东海黑潮附近的地面天气图资料，分析了冬季黑潮附近生成的温带气旋路径和强度的变化。对曲折路径和直线路径状态下的气旋路径合成分析表明，曲折路径状态下的气旋路径轴远离日本南部海岸，有分散的趋势，而直线路径状态下的气旋路径轴则附着在南部海岸，有较长的延伸特征。这两个国家之间的轨道差异也发生在东部。
AbstractA large meridional shift of the sea surface temperature front occurs off the south coast of Japan associated with transitions between the large-meander and straight paths of the Kuroshio. Most extratropical cyclones generated in winter near the Kuroshio in the East China Sea pass through the region where the Kuroshio takes either the meander or the straight path. To examine whether such cyclones change their tracks and intensities according to the two states of the path, a new dataset of winter cyclone tracks derived from surface weather charts from the period 1969/70–2008/09 was produced. The composite analysis of cyclone tracks with respect to the meander and straight path states reveals the following: the cyclone track axis for the meander path state is located away from the south coast of Japan with a dispersive tendency, while that for the straight path state is attached to the south coast with a long extending feature. A difference in track between these two states also occurs to the east of...