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DOI | 10.1007/s00382-019-05094-4 |
Impact of Arctic amplification on declining spring dust events in East Asia | |
Liu, Jun1; Wu, Dongyou1; Liu, Guangjing1; Mao, Rui2; Chen, Siyu1; Ji, Mingxia1; Fu, Pingqing3; Sun, Yele4; Pan, Xiaole4; Jin, Hongchun5; Zhou, Yubin6; Wang, Xin1,3 | |
2019-12-26 | |
发表期刊 | CLIMATE DYNAMICS
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ISSN | 0930-7575 |
EISSN | 1432-0894 |
出版年 | 2019 |
文章类型 | Article;Early Access |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Dust aerosols play key roles in affecting regional and global climate through their direct, indirect, and semi-direct effects. Dust events have decreased rapidly since the 1980s in East Asia, particularly over northern China, primarily because of changes in meteorological parameters (e.g. surface wind speed and precipitation). In this study, we found that winter (December-January-February) Arctic amplification associated with weakened temperature gradients along with decreased zonal winds is primarily responsible for the large decline in following spring (March-April-May) dust event occurrences over northern China since the mid-1980s. A dust index was developed for northern China by combining the daily frequency of three types of dust event (dust storm, blowing dust, and floating dust). Using the empirical orthogonal function (EOF) analysis, the first pattern of dust events was obtained for spring dust index anomalies, which accounts for 56.2% of the variability during 1961-2014. Moreover, the enhanced Arctic amplification and stronger Northern Hemisphere annular mode (NAM) in winter can result in the anticyclonic anomalies over Siberia and Mongolia, while cyclonic anomalies over East Europe in spring. These results are significantly correlated with the weakened temperature gradients, increased precipitation and soil moisture, and decreased snow cover extent in the mid-latitude over Northern Hemisphere. Based on the future predictions obtained from the Fifth Climate Models Intercomparison Project (CMIP5), we found that the dust event occurrences may continually decrease over northern China due to the enhanced Arctic amplification in future climate. |
英文关键词 | Dust event occurrences Dust index Arctic amplification Temperature gradient Future prediction |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000504464800001 |
WOS关键词 | SEA-ICE COVER ; TRANS-PACIFIC TRANSPORT ; LONG-TERM TRENDS ; ATMOSPHERIC CIRCULATION ; POLAR AMPLIFICATION ; MINERAL DUST ; TEMPERATURE-GRADIENTS ; OPTICAL-PROPERTIES ; WEATHER FREQUENCY ; WINTER MONSOON |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | 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/224315 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Lanzhou Univ, Coll Atmospher Sci, Key Lab Semiarid Climate Change, Minist Educ, Lanzhou 730000, Gansu, Peoples R China; 2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 3.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin 300072, Peoples R China; 4.Chinese Acad Sci, Inst Atmospher Phys, State Key Lab Atmospher Boundary Layer Phys & Atm, Beijing 100029, Peoples R China; 5.KuWeather Sci & Technol, Beijing 100085, Peoples R China; 6.Natl Deep Sea Ctr, Qingdao, Shandong, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jun,Wu, Dongyou,Liu, Guangjing,et al. Impact of Arctic amplification on declining spring dust events in East Asia[J]. CLIMATE DYNAMICS,2019. |
APA | Liu, Jun.,Wu, Dongyou.,Liu, Guangjing.,Mao, Rui.,Chen, Siyu.,...&Wang, Xin.(2019).Impact of Arctic amplification on declining spring dust events in East Asia.CLIMATE DYNAMICS. |
MLA | Liu, Jun,et al."Impact of Arctic amplification on declining spring dust events in East Asia".CLIMATE DYNAMICS (2019). |
条目包含的文件 | 条目无相关文件。 |
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