气候变化领域集成服务门户(CCPortal): Real world and tropical cyclone world. Part II: Sensitivity of tropical cyclone formation to uniform and meridionally varying sea surface temperatures under aquaplanet conditions

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DOI	10.1175/JCLI-D-19-0079.1
	Real world and tropical cyclone world. Part II: Sensitivity of tropical cyclone formation to uniform and meridionally varying sea surface temperatures under aquaplanet conditions
	Walsh K.J.E.; Sharmila S.; Thatcher M.; Wales S.; Utembe S.; Vaughan A.
发表日期	2020
ISSN	0894-8755
起始页码	1473
结束页码	1486
卷号	33 期号:4
英文摘要	This study aims to investigate the response of simulated tropical cyclone formation to specific climate conditions, using an idealized aquaplanet framework of an;40-km-horizontal-resolution atmospheric general circulation model. Two sets of idealized model experiments have been performed, one with a set of uniformly distributed constant global sea surface temperatures (SSTs) and another in which varying meridional SST gradients are imposed. The results show that the strongest relationship between climate and tropical cyclone formation is with vertical static stability: increased static stability is strongly associated with decreased tropical cyclone formation. Vertical wind shear and midtropospheric vertical velocity also appear to be related to tropical cyclone formation, although below a threshold value of wind shear there appears to be little relationship. The relationship of tropical cyclone formation with maximum potential intensity and mean sea surface temperature is weak and not monotonic. These simulations strongly suggest that vertical static stability should be part of any climate theory of tropical cyclone formation. © 2020 American Meteorological Society.
英文关键词	Atmospheric temperature; Climate models; Oceanography; Shear flow; Storms; Submarine geophysics; Surface properties; Surface waters; Tropics; Atmospheric general circulation models; Climate condition; Mean sea surfaces; Sea surface temperature (SST); Sea surface temperatures; Tropical cyclone; Vertical velocity; Vertical wind shear; Hurricanes; atmospheric dynamics; atmospheric general circulation model; cyclogenesis; formation mechanism; model test; sea surface temperature; sensitivity analysis; temperature gradient; tropical cyclone; troposphere; wind shear
语种	英语
来源期刊	Journal of Climate
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171443
作者单位	School of Earth Sciences, University of Melbourne, Melbourne, Australia; Centre for Applied Climate Sciences, University of Southern Queensland, Toowoomba, QLD, Australia; CSIRO Oceans and Atmosphere, Aspendale, Australia; ARC Centre of Excellence for Climate Extremes, University of New South Wales, Sydney, Australia; Environmental Protection Authority Victoria, Melbourne, Australia; ARC Centre of Excellence for Climate System Science, University of New South Wales, Sydney, Australia; Department of Earth Sciences, University of Cambridge, Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Walsh K.J.E.,Sharmila S.,Thatcher M.,et al. Real world and tropical cyclone world. Part II: Sensitivity of tropical cyclone formation to uniform and meridionally varying sea surface temperatures under aquaplanet conditions[J],2020,33(4).
APA	Walsh K.J.E.,Sharmila S.,Thatcher M.,Wales S.,Utembe S.,&Vaughan A..(2020).Real world and tropical cyclone world. Part II: Sensitivity of tropical cyclone formation to uniform and meridionally varying sea surface temperatures under aquaplanet conditions.Journal of Climate,33(4).
MLA	Walsh K.J.E.,et al."Real world and tropical cyclone world. Part II: Sensitivity of tropical cyclone formation to uniform and meridionally varying sea surface temperatures under aquaplanet conditions".Journal of Climate 33.4(2020).