The key role of diabatic processes in modifying the upper‐tropospheric wave guide: a North Atlantic case‐study
The key role of diabatic processes in modifying the upper‐tropospheric wave guide: a North Atlantic case‐study
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DOI：
10.1002/qj.891
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发表时间：
2011-10
影响因子：
8.9
通讯作者：
C. Grams;H. Wernli;M. Böttcher;J. Čampa;U. Corsmeier;S. Jones;J. Keller;C. Lenz;L. Wiegand-
中科院分区：
文献类型：
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作者：
C. Grams;H. Wernli;M. Böttcher;J. Čampa;U. Corsmeier;S. Jones;J. Keller;C. Lenz;L. Wiegand-
这项研究突出了非绝热过程的重要性，在北大西洋-欧洲部门的天气系统的复杂的相互作用在2008年9月7日至14日的一周。一系列事件发生，包括飓风汉娜的对流层外转变（ET），随后发展的对流层外气旋，上层位涡（PV）流光的形成，突出到欧洲并引发强降雨，以及地中海气旋的起源。采用PV的观点沿着与轨迹计算阐明非绝热修改的中纬度流。
This study highlights the importance of diabatic processes for the complex interaction of weather systems in the North Atlantic–European sector during the week of 7–14 September 2008. A chain of events occurred including the extratropical transition (ET) of hurricane Hanna, a subsequently developing extratropical cyclone, the formation of an upper‐level potential vorticity (PV) streamer that protruded towards Europe and triggered intense rainfall, and the genesis of a Mediterranean cyclone. A PV perspective is adopted along with trajectory calculations to elucidate the diabatic modification of the midlatitude flow.