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Weakening Dust Storm Intensity in Arid Central Asia Due to Global Warming Over the Past 160 Years
Zhang, Jin1; Xu, Hai1; Lan, Jianghu2; Ai, Li2; Sheng, Enguo2; Yan, Dongna2; Zhou, Kang'en2; Yu, Keke2; Song, Yunping1; Zhang, Shuang1; Torfstein, Adi3
通讯作者Xu, Hai(xuhai@tju.edu.cn)
2020-07-21
发表期刊FRONTIERS IN EARTH SCIENCE
卷号8页码:11
摘要Dust storms occur frequently in arid central Asia (ACA) and greatly influence the regional ecology/environment, human health, and security, as well as the global climate. To date, neither the patterns nor the underlying mechanisms of dust storms in ACA are fully understood, partly due to the lack of long-term historical records. Here, we reconstruct a dust storm history of the past similar to 160 years in northwest China, based on high-resolution sedimentary proxies retrieved from Lake Karakul (located in the core zone of ACA). We find that changes in the sedimentary coarse fraction (grain size > 64 mu m) in Lake Karakul are correlated with both historical and modern observed dust storms. The reconstructed dust storm intensity shows a decreasing trend sinceAD1850s, with three high occurrence intervals atAD1870s-1910s,AD1930s-1940s, andAD1960s-1980s. We contend that changes in temperature and wind speed could have dominated the frequency and intensity of dust storms in northwest China during the record periods: temperature controls the wind speed and then the dust storm frequency/intensity; lower temperature corresponding to higher wind speed, and higher dust storm frequency/intensity, and vice versa. The observed anthropogenic global warming could have led to a decrease in atmospheric temperature gradients and decline in wind speed and then decreasing dust storm frequency/intensity. Providing this stands, less and weaker dust storms are expected under a continuously anthropogenic warming scenario.
关键词dust storm global warming arid central Asia Lake Karakul grain size
DOI10.3389/feart.2020.00284
关键词[WOS]MALAN ICE CORE ; TIBETAN PLATEAU ; ATMOSPHERIC CIRCULATION ; EVENT FREQUENCY ; SOURCE AREA ; RECORD ; CHINA ; HOLOCENE ; DEPOSITS ; LAKE
收录类别SCI ; SCI
语种英语
资助项目joint NSFC-ISF research program (NSFC) - National Natural Science Foundation of China[41761144070] ; joint NSFC-ISF research program (ISF) - National Natural Science Foundation of China[2487/17] ; [41672169]
WOS研究方向Geology
项目资助者joint NSFC-ISF research program (NSFC) - National Natural Science Foundation of China ; joint NSFC-ISF research program (ISF) - National Natural Science Foundation of China
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000558862600001
出版者FRONTIERS MEDIA SA
引用统计
被引频次:12[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/15172
专题现代环境研究室
通讯作者Xu, Hai
作者单位1.Tianjin Univ, Inst Surface Earth Syst Sci, Tianjin, Peoples R China
2.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian, Peoples R China
3.Hebrew Univ Jerusalem, Inst Earth Sci, Jerusalem, Israel
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Zhang, Jin,Xu, Hai,Lan, Jianghu,et al. Weakening Dust Storm Intensity in Arid Central Asia Due to Global Warming Over the Past 160 Years[J]. FRONTIERS IN EARTH SCIENCE,2020,8:11.
APA Zhang, Jin.,Xu, Hai.,Lan, Jianghu.,Ai, Li.,Sheng, Enguo.,...&Torfstein, Adi.(2020).Weakening Dust Storm Intensity in Arid Central Asia Due to Global Warming Over the Past 160 Years.FRONTIERS IN EARTH SCIENCE,8,11.
MLA Zhang, Jin,et al."Weakening Dust Storm Intensity in Arid Central Asia Due to Global Warming Over the Past 160 Years".FRONTIERS IN EARTH SCIENCE 8(2020):11.
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