干旱区生态环境知识资源中心(Arid): 太阳辐射与冰盖/CO

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	太阳辐射与冰盖/CO_2驱动晚上新世暖期中国北方降水
其他题名	Joint insolation and ice sheet/CO_2 forcing on northern China precipitation during Pliocene warmth
	罗增; 聂军胜; Annelisa Ehret Moe; Heermance Richard V; Carmala Garzione; Herbert Timothy D; 王钊; 李华; 张蕊; 赵向明; Ulrich Salzmann
来源期刊	科学通报
ISSN	2095-9273
出版年	2021
卷号	66 期号:4
中文摘要	理解未来东亚夏季风的变化要求查明地质历史时期中的气候温暖阶段东亚夏季风的变化及驱动机制.黄土高原的风成沉积序列是研究过去东亚季风变化的良好载体, 对第四纪期间沉积的记录研究表明东亚夏季风在此期间可能主要受冰盖、CO_2和太阳辐射的共同驱动.晚上新世暖期(3.264~3.025Ma)是距今最近的气候持续温暖时期,然而黄土高原红黏土记录却显示了较弱的轨道周期,与气候模拟结果不一致.为了解决这一矛盾,本文利用一个新的季风降水代用指标,重建了晚上新世暖期东亚季风的降水变化.结果表明东亚季风降水变化在该时期以2万年周期为主,说明太阳辐射是重要的驱动力,加深了我们对东亚夏季风在暖期变化及规律的认识.此外,我们还发现季风降水的4万年周期与南半球冰量的变化呈同相位关系,说明C02/南极冰盖也可能是驱动中国北方降水的因素.
英文摘要	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 CO_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, CO_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, CO_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].
类型	Article
语种	英语
开放获取类型	Bronze, Green Accepted
收录类别	CSCD
WOS类目	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:6916611
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354354
作者单位	罗增, 730000. 王钊, 730000. 李华, 730000. 聂军胜, ;;, ;;, ;;, ;; 730000;;100101. 赵向明, 02912. 张蕊, 221116.
推荐引用方式 GB/T 7714	罗增,聂军胜,Annelisa Ehret Moe,等. 太阳辐射与冰盖/CO_2驱动晚上新世暖期中国北方降水[J],2021,66(4).
APA	罗增.,聂军胜.,Annelisa Ehret Moe.,Heermance Richard V.,Carmala Garzione.,...&Ulrich Salzmann.(2021).太阳辐射与冰盖/CO_2驱动晚上新世暖期中国北方降水.科学通报,66(4).
MLA	罗增,et al."太阳辐射与冰盖/CO_2驱动晚上新世暖期中国北方降水".科学通报 66.4(2021).