globalchange  > 科学计划与规划
DOI: 10.1002/2016GL070352
论文题名:
Tropical cyclone recurvature: An intrinsic property?
作者: Chan K.T.F.; Chan J.C.L.
刊名: Geophysical Research Letters
ISSN: 0094-8753
EISSN: 1944-8484
出版年: 2016
卷: 43, 期:16
起始页码: 8769
结束页码: 8774
语种: 英语
英文关键词: motion ; movement ; recurvature ; track ; tropical cyclone
Scopus关键词: Storms ; Tropics ; Troposphere ; Motion ; Movement ; Recurvature ; Track ; Tropical cyclone ; Hurricanes
英文摘要: The typical track of a tropical cyclone (TC) in the Northern Hemisphere is an initial northwestward movement followed by an eventual turning toward the east. Such turning is referred to as recurvature and often explained by the change of the environmental flow that steers the TC. Here we show that even in the absence of background flow, a TC initiated at a high enough latitude can recurve itself. Differential horizontal advection of the planetary vorticity by the TC circulation at different vertical levels leads to the development of vertical wind shear, upper tropospheric anticyclone, and asymmetric distribution of convection. The flow associated with the upper tropospheric anticyclone on the equatorward side of the TC and the diabatic heating associated with the asymmetric convection combine to cause the TC to recurve. Such knowledge, an intrinsic recurvature property of the TC is important in forecasting the TC track when the environmental flow is weak. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84983404288&doi=10.1002%2f2016GL070352&partnerID=40&md5=3c5e037005e2def33f987e12687fd4b3
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9716
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: School of Energy and Environment, City University of Hong Kong, Hong Kong

Recommended Citation:
Chan K.T.F.,Chan J.C.L.. Tropical cyclone recurvature: An intrinsic property?[J]. Geophysical Research Letters,2016-01-01,43(16).
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