globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2017JD026959
论文题名:
Impact of ocean warming on tropical cyclone track over the western north pacific: A numerical investigation based on two case studies
作者: Sun Y.; Zhong Z.; Li T.; Yi L.; Camargo S.J.; Hu Y.; Liu K.; Chen H.; Liao Q.; Shi J.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2017
卷: 122, 期:16
起始页码: 8617
结束页码: 8630
语种: 英语
英文关键词: numerical simulation ; ocean warming ; sea surface temperature ; storm size ; tropical cyclone track ; western Pacific subtropical high
英文摘要: The impact of ocean warming on tropical cyclone (TC) track over the western North Pacific is an open issue. Relatively little is known about possible changes in TC tracks under ocean warming conditions due to both inhomogeneous observation networks and large natural variability over a relatively short observational period. A suite of semiidealized numerical experiments on two TC cases is conducted to investigate the response of TC tracks to increases in sea surface temperature (SST). It is found that the simulated TC track is highly sensitive to underlying SST. Specifically, through its influence on the radial distribution of sea surface enthalpy, ocean warming can lead to changes in the tangential wind profile and thus increase the TC size in terms of the radius of gale force wind, which is attributed to the increase in maximum wind speed, the expansion of the radius of maximum wind, and the additional increase in outer winds. The increased TC size, as suggested by previous studies, further leads to the eastward withdrawal of the western Pacific subtropical high (WPSH) and thus a northward turning of the TC. Results of climate simulations in the present study provide further evidence for the aforementioned impact of ocean warming on TC size and thus the WPSH and TC track. Results of the present study also imply that the threat of storms to countries in East Asia may be reduced due to possible changes in TC tracks if ocean warming continues in the future. ©2017. American Geophysical Union. All Rights Reserved.
资助项目: 2015CB453200 ; 41430426 ; 41605072
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/62599
Appears in Collections:影响、适应和脆弱性
气候减缓与适应

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作者单位: Key Laboratory of Meteorological Disaster, Ministry of Education/Joint International Research Laboratory of Climate and Environmental Change/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters, Nanjing University of Information Science and Technology, Nanjing, China; College of Meteorology and Oceanography, National University of Defense Technology, Nanjing, China; Jiangsu Collaborative Innovation Center for Climate Change, School of Atmospheric Sciences, Nanjing University, Nanjing, China; IPRC and Department of Atmospheric Sciences, University of Hawai‘i at Mānoa, Honolulu, HI, United States; Chinese Academy of Meteorological Sciences/Chinese Meteorological Society, Beijing, China; Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY, United States

Recommended Citation:
Sun Y.,Zhong Z.,Li T.,et al. Impact of ocean warming on tropical cyclone track over the western north pacific: A numerical investigation based on two case studies[J]. Journal of Geophysical Research: Atmospheres,2017-01-01,122(16)
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