Joint insolation and ice sheet/CO_(2)forcing on northern China precipitation during Pliocene warmth

作     者：Zeng Luo Junsheng Nie Annelisa Ehret Moe Richard V.Heermance Carmala Garzione Timothy D.Herbert Zhao Wang Hua Li Rui Zhang Xiangming Zhao Ulrich Salzmann 罗增;聂军胜;Annelisa Ehret Moe;Richard V.Heermance;Carmala Garzione;Timothy D.Herbert;王钊;李华;张蕊;赵向明;Ulrich Salzmann

作者机构：Key Laboratory of Western China's Environment System(Ministry of Education)Lanzhou UniversityLanzhou 730000China Center for Excellence in Tibetan Plateau Earth SciencesChinese Academy of SciencesBeijing 100101China Department of Geological SciencesCalifornia State UniversityNorthridge 91330-8266USA Department of Environmental SciencesRochester Institute of TechnologyRochester 14623USA Department of EarthEnvironmentaland Planetary SciencesBrown UniversityProvidence 02912USA Department of ChemistryLanzhou UniversityLanzhou 730000China School of GeographyGeomatics and PlanningJiangsu Normal UniversityXuzhou 221116China Department of Geography and Environmental SciencesNorthumbria UniversityNewcastle Upon Tyne NE18STUK 

出 版 物：《Science Bulletin》 (科学通报（英文版）)

年 卷 期：2021年第66卷第4期

页      面：319-322,M0003页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：supported by the Second Tibetan Plateau Scientific Expedition(2019QZKK0704) the National Natural Science Foundation of China(42030505 and 41672157) the State Scholarship Fund organized by the China Scholarship Council(CSC)in 2018,the Royal Society(IE 141128) the U.S.National Science Foundation(1348005,1348075,and 1545859) 

主　　题：太阳辐射 南极冰盖 暖期 气候模拟 轨道周期 相位关系 地质历史时期 代用指标 

摘      要：East Asian summer monsoon(EASM)precipitation affects the lives of billions of people and impacts the stability of fragile desert ecosystems in central Asia[1].Therefore,many studies have focused on understanding the variability of the EASM and its relationship with insolation,ice sheet,and C0_(2)forcings[1-3].Evidence for EASM variability is preserved in the eolian dust sequences on the Chinese Loess Plateau(CLP),which highlight the importance of Northern Hemisphere(NH)ice sheets,C0_(2)levels,and insolation in controlling the strength of the EASM during the Quaternary[2].In contrast,Pliocene(5.3-2.6 Ma)proxy records of the EASM from the CLP reveal weak orbital signals,suggesting weak sensitivity to ice sheets,C0_(2)levels,and insolation forcing during this sustained warm period[4].These Pliocene proxy records also contrast model simulations which suggest high sensitivity of the EASM to orbital forcing(particularly precession)during this time[5].