干旱区生态环境知识资源中心(Arid): Middle East Climate Response to the Saharan Vegetation Collapse during the Mid-Holocene

Arid

DOI	10.1175/JCLI-D-20-0317.1
	Middle East Climate Response to the Saharan Vegetation Collapse during the Mid-Holocene
	Sun, Weiyi; Wang, Bin; Zhang, Qiong; Chen, Deliang; Lu, Guonian; Liu, Jian
通讯作者	Liu, J (corresponding author), Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Sch Geog Sci, Key Lab Virtual Geog Environm,Minist Educ,State K, Nanjing, Peoples R China. ; Liu, J (corresponding author), Nanjing Normal Univ, Sch Math Sci, Jiangsu Prov Key Lab Numer Simulat Large Scale Co, Nanjing, Peoples R China. ; Liu, J (corresponding author), Qingdao Natl Lab Marine Sci & Technol, Open Studio Simulat Ocean Climate Isotope, Qingdao, Peoples R China.
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2021
卷号	34 期号:1 页码:229-242
英文摘要	Understanding climate change in the Middle East (ME) is crucial because people's living environment depends on rain-fed crop systems. It remains unclear whether the ME climate would be affected by the Saharan vegetation collapse at the end of the mid-Holocene (MH). Proxy data suggest a transition from humid to more arid ME conditions during the period of 6.5-5 kyr BP. Using a set of idealized sensitivity experiments with an Earth system model (EC-Earth), we infer that the shift of Saharan vegetation plays a role in this wet-to-dry transition over the ME. The experimental results show that the Saharan greening can significantly increase the late winter and early spring precipitation over the ME. The reason is that the vegetation decreases the surface albedo, which induces a warming in North Africa and generation of an anomalous low-level cyclonic flow, which transports moisture from tropical North Africa and the Red Sea to the ME. The moisture also flows from the Mediterranean Sea region to the ME through the enhanced mid- to upper-level westerlies. The enhanced moisture carried by westerly and southwesterly flows is lifted upon reaching Mesopotamia and the Zagros Mountains, substantially increasing the precipitation there. When the Sahara greening is removed, a drier condition happens in the ME. The crop model simulation further shows a substantial decrease in wheat yield in Mesopotamia with the reduction of Saharan vegetation, which is consistent with paleoclimatic reconstructions. These results imply that future changes in Saharan land cover may have climatic and agricultural impacts in the Middle East.
英文关键词	Atmosphere Mediterranean Sea Atmosphere-land interaction Paleoclimate Coupled models Agriculture
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000615484800014
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/367868
作者单位	[Sun, Weiyi; Lu, Guonian; Liu, Jian] Nanjing Normal Univ, Jiangsu Ctr Collaborat Innovat Geog Informat Reso, Sch Geog Sci, Key Lab Virtual Geog Environm,Minist Educ,State K, Nanjing, Peoples R China; [Wang, Bin] Univ Hawaii Manoa, Dept Atmospher Sci, Honolulu, HI 96822 USA; [Wang, Bin] Univ Hawaii Manoa, Int Pacific Res Ctr, Honolulu, HI 96822 USA; [Zhang, Qiong] Stockholm Univ, Dept Phys Geog, Stockholm, Sweden; [Zhang, Qiong] Stockholm Univ, Bolin Ctr Climate Res, Stockholm, Sweden; [Chen, Deliang] Univ Gothenburg, Dept Earth Sci, Reg Climate Grp, Gothenburg, Sweden; [Liu, Jian] Nanjing Normal Univ, Sch Math Sci, Jiangsu Prov Key Lab Numer Simulat Large Scale Co, Nanjing, Peoples R China; [Liu, Jian] Qingdao Natl Lab Marine Sci & Technol, Open Studio Simulat Ocean Climate Isotope, Qingdao, Peoples R China
推荐引用方式 GB/T 7714	Sun, Weiyi,Wang, Bin,Zhang, Qiong,et al. Middle East Climate Response to the Saharan Vegetation Collapse during the Mid-Holocene[J],2021,34(1):229-242.
APA	Sun, Weiyi,Wang, Bin,Zhang, Qiong,Chen, Deliang,Lu, Guonian,&Liu, Jian.(2021).Middle East Climate Response to the Saharan Vegetation Collapse during the Mid-Holocene.JOURNAL OF CLIMATE,34(1),229-242.
MLA	Sun, Weiyi,et al."Middle East Climate Response to the Saharan Vegetation Collapse during the Mid-Holocene".JOURNAL OF CLIMATE 34.1(2021):229-242.