DOI: 10.1175/JCLI-D-16-0359.1
Scopus记录号: 2-s2.0-85017145894
论文题名: Insensitivity of the summer South Asian high intensity to a warming Tibetan Plateau in modern reanalysis datasets
作者: Wu L. ; Feng X. ; Liang M.
刊名: Journal of Climate
ISSN: 8948755
出版年: 2017
卷: 30, 期: 8 起始页码: 3009
结束页码: 3024
语种: 英语
Scopus关键词: Atmospheric thermodynamics
; Heat flux
; Meteorology
; Weather forecasting
; Wind
; Asian summer monsoons
; Atmospheric circulation
; European centre for medium-range weather forecasts
; Multidecadal variability
; Research and application
; Retrospective analysis
; Subtropics
; Trends
; Fighter aircraft
英文摘要: The South Asia high (SAH) is a prominent circulation system of the Asian summer monsoon, exerting profound influences on the weather and climate in China and surrounding regions. Its formation and maintenance is closely associated with strong summertime continental heating in the form of surface sensible heat flux and the latent heat release in connection with the Asian monsoon. In this study, the possible response of the South Asian high intensity to the thermal condition change in the Tibetan Plateau is examined with four modern reanalysis datasets, including the Modern-Era Retrospective Analysis for Research and Applications (MERRA), MERRA version 2 (MERRA-2), the European Centre for Medium-Range Weather Forecasts (ECMWF) interim reanalysis (ERA-Interim), and the Japanese 55-year Reanalysis (JRA-55). Despite the surface air warming in the four modern reanalysis datasets, reduced surface wind speed in three of the reanalysis datasets, and decreased surface sensible heat flux in the MERRA-2 dataset, there is no statistically significant trend in the SAH intensity over the period 1979-2015. One of the possible reasons is that the response of the upper-level circulation to the thermal condition change of the Tibetan Plateau occurs mainly in the 200-hPa subtropical westerly jet stream, which is located far away from the center of the South Asian high. Thus the South Asian high intensity is not particularly sensitive to the thermal condition change of the Tibetan Plateau, while the center of the South Asian high intensity over the plateau exhibits a northward trend over the period. © 2017 American Meteorological Society. 资助项目: NSFC, National Natural Science Foundation of China
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/49712
Appears in Collections: 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/Pacific Typhoon Research Center, Nanjing University of Information Science and Technology, Nanjing, China; State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, China; Guangdong Province Key Laboratory for Coastal Ocean Variation and Disaster Prediction, Guangdong Ocean University, Zhanjiang, China
Recommended Citation:
Wu L.,Feng X.,Liang M.. Insensitivity of the summer South Asian high intensity to a warming Tibetan Plateau in modern reanalysis datasets[J]. Journal of Climate,2017-01-01,30(8)