globalchange  > 影响、适应和脆弱性
DOI: 10.1002/2016MS000709
Scopus记录号: 2-s2.0-85007099128
论文题名:
Contribution of eye excess energy to the intensification rate of tropical cyclones: A numerical study
作者: Wang Y; , Heng J
刊名: Journal of Advances in Modeling Earth Systems
ISSN: 19422466
出版年: 2016
卷: 8, 期:4
起始页码: 1953
结束页码: 1968
语种: 英语
英文关键词: Entropy ; Hurricanes ; Potential energy ; Tropics ; Convective available potential energies ; Dynamical efficiency ; Excess energy ; Nonhydrostatic atmospheric models ; Numerical experiments ; Potential temperature ; Rapid intensification ; Tropical cyclone ; Storms ; atmospheric modeling ; energy flux ; entropy ; numerical method ; potential energy ; potential temperature ; rainfall ; storm ; surface energy ; tropical cyclone
英文摘要: Contribution of the near-surface high energy air in the eye region to tropical cyclone (TC) intensification rate (IR) has been evaluated based on idealized numerical experiments using a cloud-resolving, nonhydrostatic atmospheric model. The results show that when the surface entropy flux was turned off in the eye region, the equivalent potential temperature and convective available potential energy in the eye were largely suppressed while the IR of the simulated storm was reduced by about 30% in the rapid intensification (RI) phase. This suggests that the near-surface high energy air in the eye region contributed about 42% to the IR of the simulated storm. The results also showed that the number of convective bursts and the rainfall rate averaged in the inner-core region did not display significant differences. This suggests that the effect of the near-surface high energy air in the eye region on the simulated TC IR was not through the modifications to the overall strength of eyewall convection as previously hypothesized. It is found that the removal of surface entropy flux in the eye region resulted in a slower eyewall contraction and the larger radius of maximum wind (RMW). The results suggest that the near-surface high energy air in the eye region can initiate convection near the inner edge of the eyewall and facilitates eyewall contraction, leading to higher inner-core inertial stability and thus higher dynamical efficiency of eyewall heating in spinning up the tangential winds near the RMW and larger IR of the simulated TC. © 2016. The Authors.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/75843
Appears in Collections:影响、适应和脆弱性
气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Key Laboratory of Meteorological Disaster of Ministry of Education, Pacific Typhoon Research Center, Nanjing University of Information Science and Technology, Nanjing, China; Department of Atmospheric Sciences, International Pacific Research Center, University of Hawaii at Manoa, Honolulu, HI, United States

Recommended Citation:
Wang Y,, Heng J. Contribution of eye excess energy to the intensification rate of tropical cyclones: A numerical study[J]. Journal of Advances in Modeling Earth Systems,2016-01-01,8(4)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Wang Y]'s Articles
[, Heng J]'s Articles
百度学术
Similar articles in Baidu Scholar
[Wang Y]'s Articles
[, Heng J]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Wang Y]‘s Articles
[, Heng J]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.