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  4. 中国科学院新生代地质与环境重点实验室
Hemisphere differences in response of sea surface temperature and sea ice to precession and obliquity

文献类型：期刊论文

作者Wu, Zhipeng1,2,4; Yin, Qiuzhen4; Guo, Zhengtang1,2,3; Berger, Andre4
刊名GLOBAL AND PLANETARY CHANGE
出版日期2020-09-01
卷号192页码:9
关键词Precession Obliquity Half-precession Sea ice Sea surface temperature Northern Hemisphere Southern Hemisphere Paleoclimate modeling
ISSN号0921-8181
DOI10.1016/j.gloplacha.2020.103223
英文摘要The response of the climate system to astronomical parameters is an important scientific issue, but the internal processes and feedbacks need to be better understood. This study investigates the differences of the climate response to the astronomical forcing between the Northern (NH) and Southern (SH) hemispheres based on a more than 90,000-year long transient simulation using the model LOVECLIM. The astronomical parameters of the period 511-417 ka BP covering MIS-13, MIS-12 and MIS-11 are used, and greenhouse gases (GHG) concentrations and ice sheets are fixed, in order to investigate the role of insolation alone. Our results show that the response of sea ice and sea surface temperature (SST) to precession and obliquity is different between the two hemispheres. Precession plays a dominant role on the Arctic sea ice. This is mainly due to its response to the local summer insolation and also, to a less degree, the influence of the northward oceanic heat transport. However, obliquity plays a dominant role on the Southern Ocean sea ice through its influence on local solar radiation and also on the westerly winds. As far as the SST is concerned, it shows a strong precessional signal at low latitudes in both hemispheres. For the SST in the mid and high latitudes, obliquity plays a dominant role in the SH whereas precession is more important in the NH. This is largely due to the different response to insolation and feedbacks related to the different land-ocean distribution in the two hemispheres. Near the Equator, besides the precessional signal, the SST also shows strong half-precessional signal, which can be explained by the unique characteristics of the insolation variations at the Equator. Our results also show that during the period of low eccentricity, obliquity is more important than precession and the half-precessional signal vanishes due to reduced impact of precession, but precession is always more important in the NH than in the SH.
WOS关键词HOLOCENE CLIMATE EVOLUTION ; SOUTHERN-OCEAN ; EQUATORIAL INSOLATION ; CARBON-DIOXIDE ; ATMOSPHERE ; CYCLES ; RECORD ; VARIABILITY ; INCREASE ; METHANE
资助项目Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS)[MIS F.4529.18] ; National Natural Science Foundation of China[41690114] ; National Natural Science Foundation of China[41888101] ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS)[2.5020.11]
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000551998100005
出版者ELSEVIER
资助机构Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; Fonds de la Recherche Scientifique FNRS (F.R.S.-FNRS) ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS) ; Fond de la Recherche Scientifique de Belgique (F.R.S.-FNRS)
源URL[http://ir.iggcas.ac.cn/handle/132A11/97570]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Yin, Qiuzhen
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.CAS Ctr Excellence Life & Paleoenvironm, Beijing, Peoples R China
4.Catholic Univ Louvain, Georges Lemaitre Ctr Earth & Climate Res, Earth & Life Inst, Louvain La Neuve, Belgium
推荐引用方式
GB/T 7714		 Wu, Zhipeng,Yin, Qiuzhen,Guo, Zhengtang,et al. Hemisphere differences in response of sea surface temperature and sea ice to precession and obliquity[J]. GLOBAL AND PLANETARY CHANGE,2020,192:9.
APA Wu, Zhipeng,Yin, Qiuzhen,Guo, Zhengtang,&Berger, Andre.(2020).Hemisphere differences in response of sea surface temperature and sea ice to precession and obliquity.GLOBAL AND PLANETARY CHANGE,192,9.
MLA Wu, Zhipeng,et al."Hemisphere differences in response of sea surface temperature and sea ice to precession and obliquity".GLOBAL AND PLANETARY CHANGE 192(2020):9.

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来源：地质与地球物理研究所

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