DOI: 10.1007/s00382-014-2073-0
Scopus记录号: 2-s2.0-84893199189
论文题名: Summertime land–sea thermal contrast and atmospheric circulation over East Asia in a warming climate—Part I: Past changes and future projections
作者: Kamae Y. ; Watanabe M. ; Kimoto M. ; Shiogama H.
刊名: Climate Dynamics
ISSN: 9307575
出版年: 2014
卷: 43, 期: 2017-09-10 起始页码: 2553
结束页码: 2568
语种: 英语
英文关键词: CMIP5
; East Asia
; Global warming
; Land–sea thermal contrast
; Okhotsk high
英文摘要: Land–sea surface air temperature (SAT) contrast, an index of tropospheric thermodynamic structure and dynamical circulation, has shown a significant increase in recent decades over East Asia during the boreal summer. In Part I of this two-part paper, observational data and the results of transient warming experiments conducted using coupled atmosphere–ocean general circulation models (GCMs) are analyzed to examine changes in land–sea thermal contrast and the associated atmospheric circulation over East Asia from the past to the future. The interannual variability of the land–sea SAT contrast over the Far East for 1950–2012 was found to be tightly coupled with a characteristic tripolar pattern of tropospheric circulation over East Asia, which manifests as anticyclonic anomalies over the Okhotsk Sea and around the Philippines, and a cyclonic anomaly over Japan during a positive phase, and vice versa. In response to CO2 increase, the cold northeasterly winds off the east coast of northern Japan and the East Asian rainband were strengthened with the circulation pattern well projected on the observed interannual variability. These results are commonly found in GCMs regardless of future forcing scenarios, indicating the robustness of the East Asian climate response to global warming. The physical mechanisms responsible for the increase of the land–sea contrast are examined in Part II. © 2014, The Author(s). 资助项目: MEXT, Ministry of Education, Culture, Sports, Science, and Technology
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/54514
Appears in Collections: 过去全球变化的重建
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作者单位: Center for Global Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki, Japan; Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba, Japan; Environmental Change Institute, University of Oxford, South Parks Road, Oxford, United Kingdom
Recommended Citation:
Kamae Y.,Watanabe M.,Kimoto M.,et al. Summertime land–sea thermal contrast and atmospheric circulation over East Asia in a warming climate—Part I: Past changes and future projections[J]. Climate Dynamics,2014-01-01,43(2017-09-10)