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标题：Global cloud-permitting simulations of Typhoon Fengshen (2008)
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作者：Tomoe Nasuno ; Tomoe Nasuno ; Hiroyuki Yamada 等
期刊名称：Geoscience Letters
电子版ISSN：2196-4092
出版年度：2016
卷号：3
期号：1
页码：1-13
DOI：10.1186/s40562-016-0064-1
语种：English
出版社：Springer
摘要：Abstract Large-scale fields and inner-core processes relevant to the formation and intensification of Typhoon Fengshen (2008) were examined by simulations using a global nonhydrostatic model with a cloud-permitting resolution. Five runs were performed by varying the cloud microphysics or initial condition settings. In three out of five runs, a middle tropospheric trough developed within a few days following a large-scale latent heat release, which enabled the successive occurrence of deep convective events within the 50-km radius of the incipient disturbance and subsequent tropical cyclone (TC) formation. In the run initialized by altering the analysis dataset, collocation between latent heat release and the large-scale gyre was less evident, and neither the trough nor a TC developed. In the run with weaker latent heating in the lower troposphere, the trough was weak and TC formation was significantly delayed. These results indicate that the superposition of large-scale disturbances in the lower and middle troposphere and their linkage through convective enhancement played an important role in the genesis of Fengshen by preconditioning the establishment of a deep upright inner core.
关键词：KeywordsEnTropical cycloneglobal nonhydrostatic modelCloud-permitting simulation