globalchange  > 影响、适应和脆弱性
DOI: 10.1007/s00382-017-3951-z
Scopus记录号: 2-s2.0-85031430802
论文题名:
Cause of interdecadal change of tropical cyclone controlling parameter in the western North Pacific
作者: Hu F.; Li T.; Liu J.; Peng M.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2018
卷: 51, 期:2018-01-02
起始页码: 719
结束页码: 732
语种: 英语
英文关键词: Interdecadal change of TC interannual frequency ; Large-scale factors ; Mean state change
Scopus关键词: annual variation ; atmospheric circulation ; decadal variation ; El Nino-Southern Oscillation ; sea surface temperature ; seasonal variation ; tropical cyclone ; Pacific Ocean ; Pacific Ocean (North)
英文摘要: The interdecadal change of tropical cyclone (TC) controlling parameter in the western North Pacific (WNP) was investigated using observational data. Through the diagnosis of the relative role of each term of the TC genesis potential index (GPI), it was found that the dominant factor controlling interannual TC genesis frequency was specific humidity in 1950–1976, maximum potential intensity or sea surface temperature (SST) in 1977–1998, and relative vorticity in 1999–2014. The change of environmental specific humidity during 1950–1976 was primarily attributed to the advection of the mean moisture by anomalous low-level wind in ENSO developing summer. The change of SST during 1977–1998 was primarily affected by a V-shape SST pattern in western Pacific in ENSO decaying summer. The change of environment relative vorticity during 1999–2014 was primarily controlled by a strong cyclonic flow anomaly associated with CP-type El Niño. The change of dominant environmental controlling parameter is ultimately caused by the change of ENSO behavior. Compared to the first interdecadal period, a stronger EP-type ENSO variability in 1977–1998 leads to a stronger circulation and SST response in ENSO decaying phase. The occurrence of more frequent CP type El Niño in 1999–2014 was possibly attributed to both suppressed convection and low-level divergence over the central equatorial Pacific and a warming trend in the tropics. © 2017, Springer-Verlag GmbH Germany.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/109217
Appears in Collections:影响、适应和脆弱性
气候变化事实与影响

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作者单位: Key Laboratory of Meteorological Disaster, Ministry of Education (KLME)/Joint International Research Laboratory of Climate and Environmental Change (ILCEC)/Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters (CIC-FEMD), Nanjing University of Information Science and Technology, Nanjing, China; Department of Meteorology, School of Ocean and Earth Science and Technology, International Pacific Research Center, University of Hawaii at Manoa, Honolulu, HI 96822, United States; Naval Research Lab, Monterey, CA 93943, United States

Recommended Citation:
Hu F.,Li T.,Liu J.,et al. Cause of interdecadal change of tropical cyclone controlling parameter in the western North Pacific[J]. Climate Dynamics,2018-01-01,51(2018-01-02)
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