DOI: 10.1007/s00382-014-2450-8
Scopus记录号: 2-s2.0-84943815934
论文题名: Projected changes in tropical cyclones over Vietnam and the South China Sea using a 25 km regional climate model perturbed physics ensemble
作者: Redmond G. ; Hodges K.I. ; Mcsweeney C. ; Jones R. ; Hein D.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2015
卷: 45, 期: 2017-07-08 起始页码: 1983
结束页码: 2000
语种: 英语
英文摘要: The regional climate modelling system PRECIS, was run at 25 km horizontal resolution for 150 years (1949–2099) using global driving data from a five member perturbed physics ensemble (based on the coupled global climate model HadCM3). Output from these simulations was used to investigate projected changes in tropical cyclones (TCs) over Vietnam and the South China Sea due to global warming (under SRES scenario A1B). Thirty year climatological mean periods were used to look at projected changes in future (2069–2098) TCs compared to a 1961–1990 baseline. Present day results were compared qualitatively with IBTrACS observations and found to be reasonably realistic. Future projections show a 20–44 % decrease in TC frequency, although the spatial patterns of change differ between the ensemble members, and an increase of 27–53 % in the amount of TC associated precipitation. No statistically significant changes in TC intensity were found, however, the occurrence of more intense TCs (defined as those with a maximum 10 m wind speed >35 m/s) was found to increase by 3–9 %. Projected increases in TC associated precipitation are likely caused by increased evaporation and availability of atmospheric water vapour, due to increased sea surface and atmospheric temperature. The mechanisms behind the projected changes in TC frequency are difficult to link explicitly; changes are most likely due to the combination of increased static stability, increased vertical wind shear and decreased upward motion, which suggest a decrease in the tropical overturning circulation. © 2014, Springer-Verlag Berlin Heidelberg. 资助项目: CBCC, Chicago Baseball Cancer Charities
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/53981
Appears in Collections: 过去全球变化的重建
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作者单位: Met Office Hadley Centre, Exeter, United Kingdom; NERC Centre for Earth Observation, University of Reading, Reading, United Kingdom
Recommended Citation:
Redmond G.,Hodges K.I.,Mcsweeney C.,et al. Projected changes in tropical cyclones over Vietnam and the South China Sea using a 25 km regional climate model perturbed physics ensemble[J]. Climate Dynamics,2015-01-01,45(2017-07-08)