Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-19-9903-2019 |
Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960-2012 | |
Hao, Xin1,2; He, Shengping1,4,5; Wang, Huijun1,2,3; Han, Tingting1,2 | |
2019-08-07 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS |
ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2019 |
卷号 | 19期号:15页码:9903-9911 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China; Norway |
英文摘要 | The East Asian winter monsoon (EAWM) is greatly influenced by many factors that can be classified as anthropogenic forcing and natural forcing. Here we explore the contribution of anthropogenic influence to the change in the EAWM over the past decades. Under all forcings observed during 1960-2013 (All-Hist run), the atmospheric general circulation model is able to reproduce the climatology and variability of the EAWM-related surface air temperature and 500 hPa geopotential height and shows a statistically significant decreasing EAWM intensity with a trend coefficient of similar to-0.04 yr(-1), which is close to the observed trend. By contrast, the simulation, which is driven by the same forcing as the All-Hist run but with the anthropogenic contribution to them removed, shows no decreasing trend in the EAWM intensity. By comparing the simulations under two different forcing scenarios, we further reveal that the responses of the EAWM to the anthropogenic forcing include a rise of 0.6 degrees in surface air temperature over East Asia as well as weakening of the East Asian trough, which may result from the poleward expansion and intensification of the East Asian jet forced by the change in temperature gradient in the troposphere. Additionally, compared with the simulation without anthropogenic forcing, the frequency of strong (weak) EAWM occurrence is reduced (increased) by 45% (from 0 to 10/7). These results indicate that the weakening of the EAWM during 1960-2013 may be mainly attributed to the anthropogenic influence. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000479316000001 |
WOS关键词 | SEA-ICE COVER ; INTERDECADAL VARIATIONS ; CLIMATE ; TEMPERATURE ; NORTHERN ; IMPACT ; WEATHER ; ENSO |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/185923 |
专题 | 地球科学 |
作者单位 | 1.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Minist Educ, Key Lab Meteorol Disaster, Nanjing 210044, Jiangsu, Peoples R China; 2.Chinese Acad Sci, Inst Atmospher Phys, Nansen Zhu Int Res Ctr, Beijing 100029, Peoples R China; 3.Chinese Acad Sci, Climate Change Res Ctr, Beijing 100029, Peoples R China; 4.Univ Bergen, Geophys Inst, N-0025 Bergen, Norway; 5.Bjerknes Ctr Climate Res, N-0025 Bergen, Norway |
推荐引用方式 GB/T 7714 | Hao, Xin,He, Shengping,Wang, Huijun,et al. Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960-2012[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2019,19(15):9903-9911. |
APA | Hao, Xin,He, Shengping,Wang, Huijun,&Han, Tingting.(2019).Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960-2012.ATMOSPHERIC CHEMISTRY AND PHYSICS,19(15),9903-9911. |
MLA | Hao, Xin,et al."Quantifying the contribution of anthropogenic influence to the East Asian winter monsoon in 1960-2012".ATMOSPHERIC CHEMISTRY AND PHYSICS 19.15(2019):9903-9911. |
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