Numerical Study of Explosively Developing Extratropical Cyclones in the Northwestern Pacific Region
Numerical Study of Explosively Developing Extratropical Cyclones in the Northwestern Pacific Region
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DOI：
10.1175/2007mwr2111.1
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发表时间：
2008-02
影响因子：
3.2
通讯作者：
A. Kuwano‐Yoshida;Y. Asuma
中科院分区：
文献类型：
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作者：
A. Kuwano‐Yoshida;Y. Asuma
利用一个区域中尺度数值模式[第五代宾夕法尼亚州立大学-国家大气研究中心中尺度模式(MM5)]，对西北太平洋地区6个爆发性发展的温带气旋进行了数值模拟。气旋按其形成和发展的地点进行分类：鄂霍次克-日本海(OJ)气旋起源于东亚大陆并在日本海或鄂霍次克海发展，太平洋-陆地(PO-L)气旋也在亚洲大陆上空形成并在西北太平洋发展，太平洋-海洋(PO-O)气旋在西北太平洋形成并发展。选取两个个例(每种气旋类型最极端和最正常的加深速率个例)进行了数值模拟。模拟结果表明，每种类型的极端气旋都具有不同的中尺度结构和演化路径，强烈地反映了更大尺度的环境：一是热带气旋，二是热带气旋。
Abstract Numerical simulations of six explosively developing extratropical cyclones in the northwestern Pacific Ocean region are conducted using a regional mesoscale numerical model [the fifth-generation Pennsylvania State University–National Center for Atmospheric Research Mesoscale Model (MM5)]. Cyclones are categorized according to the locations where they form and develop: Okhotsk–Japan Sea (OJ) cyclones originate over the eastern Asian continent and develop over the Sea of Japan or the Sea of Okhotsk, Pacific Ocean–land (PO–L) cyclones also form over the Asian continent and develop over the northwestern Pacific Ocean, and Pacific Ocean–ocean (PO–O) cyclones form and develop over the northwestern Pacific Ocean. Two cases (the most extreme and normal deepening rate cases for each cyclone type) are selected and simulated. Simulations show that the extreme cyclone of each type is characterized by a different mesoscale structure and evolutionary path, which strongly reflect the larger-scale environment: a...