DOI: 10.1007/s00382-015-2859-8
Scopus记录号: 2-s2.0-84945282323
论文题名: Evidence for the significant role of sea surface temperature distributions over remote tropical oceans in tropical cyclone intensity
作者: Hegde A.K. ; Kawamura R. ; Kawano T.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2016
卷: 47, 期: 2017-01-02 起始页码: 623
结束页码: 635
语种: 英语
英文关键词: Moisture transport
; Sea surface temperature
; Typhoon intensity
; WRF model
英文摘要: The role of remote ocean sea surface temperature (SST) in regulating tropical cyclone (TC) characteristics has been examined by performing numerical experiments with a regional scale model. Model simulations have been carried out to simulate typhoon Man-yi (July 2007), in our case study, under a range of SST conditions over the Indian Ocean and the South China Sea. The intensity and track of the cyclone have been systematically changed in sensitivity simulations of cool and warm SSTs over that region, following its peak phase. Warm oceans can substantially reduce the intensification of western North Pacific cyclones, whereas cool oceans can enhance their strength. This is intimately associated with the enhancement/weakening of the moisture supply through the moisture conveyor belt (MCB) in the lower troposphere, from the Indian Ocean and South China Sea into the vicinity of the cyclone center. When the MCB is interrupted over the South China Sea in warm SST occurrences, the large-scale transport of moisture into the cyclone system is significantly reduced, leading to the weakening of the cyclone intensity and to the eastward shift of its track. This study shows that changes in remote tropical ocean SST can also modulate TCs and thus can help in improving the forecasting of TC intensities and tracks. © 2015, The Author(s). Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53660
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Earth and Planetary Sciences, Faculty of Sciences, Kyushu University, Fukuoka, Japan
Recommended Citation:
Hegde A.K.,Kawamura R.,Kawano T.. Evidence for the significant role of sea surface temperature distributions over remote tropical oceans in tropical cyclone intensity[J]. Climate Dynamics,2016-01-01,47(2017-01-02)