干旱区生态环境知识资源中心(Arid): Large dry-humid fluctuations in Asia during the Late Cretaceous due to orbital forcing: A modeling study

Arid

DOI	10.1016/j.palaeo.2019.06.003
	Large dry-humid fluctuations in Asia during the Late Cretaceous due to orbital forcing: A modeling study
	Zhang, Jian 1; Liu, Yonggang 2; Fang, Xiaomin 1,3,4; Wang, Chengshan 5; Yang, Yibo 1,3
通讯作者	Zhang, Jian
来源期刊	PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
ISSN	0031-0182
EISSN	1872-616X
出版年	2019
卷号	533
英文摘要	Cretaceous stratigraphy in the mid- to low-latitude Asia indicates that the climate was overall dry with large variations in aridity in timescales of 1-100 ka, different from the present-day monsoonal humid climate. To identify the possible mechanism for such variation, we modeled the Late Cretaceous climate using a fully coupled atmosphere-ocean general circulation model (AOGCM), Community Earth System Model version 1.2 (CESM1.2), under different CO2 concentrations and orbital configurations. The simulation results show that the mid- to low-latitude Asia was generally dry during that time, consistent with reconstructions. The arid area decreases and the semi-arid area increases with the increase of CO2 concentration, but the change in total area is small even when CO2 is increased by 8 folds. In contrast, the area of dryland can increase by similar to 67% or 500% depending on how dryness is defined, when the orbital configuration changes from one in which the northern hemispheric summer receives the most solar insolation to one in which it receives the least solar insolation. Therefore, the mid- to low-latitude Asia was likely going through dramatic dry-humid cycles at orbital timescale during the Late Cretaceous, similar to the Saharan region during the Late Miocene-Pleistocene.
英文关键词	Asian aridity Orbital cycle Paleoclimate modeling Greenhouse climate
类型	Article
语种	英语
国家	Peoples R China
收录类别	SCI-E
WOS记录号	WOS:000487174100008
WOS关键词	TIBETAN PLATEAU ; GENERAL-CIRCULATION ; SUMMER MONSOONS ; CLIMATE ; BASIN ; SCALE ; INTERIOR
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary ; Paleontology
WOS研究方向	Physical Geography ; Geology ; Paleontology
EI主题词	2019-11-01
来源机构	北京大学 ; 中国科学院青藏高原研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/310694
作者单位	1.Chinese Acad Sci, Inst Tibetan Plateau Res, CAS Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China; 2.Peking Univ, Sch Phys, Dept Atmosphere & Ocean Sci, Beijing 100871, Peoples R China; 3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China; 5.China Univ Geosci Beijing, Sch Earth Sci & Resources, State Key Lab Biogeol & Environm Geol, Beijing 100083, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jian,Liu, Yonggang,Fang, Xiaomin,et al. Large dry-humid fluctuations in Asia during the Late Cretaceous due to orbital forcing: A modeling study[J]. 北京大学, 中国科学院青藏高原研究所,2019,533.
APA	Zhang, Jian,Liu, Yonggang,Fang, Xiaomin,Wang, Chengshan,&Yang, Yibo.(2019).Large dry-humid fluctuations in Asia during the Late Cretaceous due to orbital forcing: A modeling study.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,533.
MLA	Zhang, Jian,et al."Large dry-humid fluctuations in Asia during the Late Cretaceous due to orbital forcing: A modeling study".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 533(2019).