GSTDTAP  > 气候变化
DOI10.1029/2018GL081510
Climate Responses to the Splitting of a Supercontinent: Implications for the Breakup of Pangea
Tabor, Clay R.1; Feng, Ran1; Otto-Bliesner, Bette L.2
2019-06-16
发表期刊GEOPHYSICAL RESEARCH LETTERS
ISSN0094-8276
EISSN1944-8007
出版年2019
卷号46期号:11页码:6059-6068
文章类型Article
语种英语
国家USA
英文摘要

Reconstructing deep time climate often relies on a limited number of data points, which can hinder inference of the large-scale climate state. Here we use an Earth system model with idealized boundary conditions to simulate climate responses to paleogeographic changes associated with the breakup of a supercontinent. After the supercontinent splits, weaker tropical easterlies occur in the larger ocean basin, which dampens the Walker circulation and warms the equatorial ocean through reduced upwelling. Additionally, cloud formation increases across the midlatitude ocean, causing locally cooler sea surface temperatures. Over land, there is dramatic tropical cooling post breakup due to enhanced moisture and cloud formation. Consequently, the latitudinal temperature gradient responses over land and ocean oppose each other, which makes inferring large scale climate changes from spatially spare proxy records particularly challenging in this scenario. Our findings emphasize the tight coupling between geography and planetary scale climate dynamics in the tropics and subtropics.


英文关键词paleoclimate climate dynamics proxy records Earth system model Walker circulation Hadley circulations
领域气候变化
收录类别SCI-E
WOS记录号WOS:000477616200047
WOS关键词HADLEY CIRCULATION ; ATMOSPHERIC CO2 ; LATE PLIOCENE ; OCEANS ; PALEOGEOGRAPHY ; TEMPERATURE ; EVOLUTION ; TRANSPORT ; WARMTH ; MODEL
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/184111
专题气候变化
作者单位1.Univ Connecticut, Dept Geosci, Storrs, CT 06269 USA;
2.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA
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GB/T 7714
Tabor, Clay R.,Feng, Ran,Otto-Bliesner, Bette L.. Climate Responses to the Splitting of a Supercontinent: Implications for the Breakup of Pangea[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(11):6059-6068.
APA Tabor, Clay R.,Feng, Ran,&Otto-Bliesner, Bette L..(2019).Climate Responses to the Splitting of a Supercontinent: Implications for the Breakup of Pangea.GEOPHYSICAL RESEARCH LETTERS,46(11),6059-6068.
MLA Tabor, Clay R.,et al."Climate Responses to the Splitting of a Supercontinent: Implications for the Breakup of Pangea".GEOPHYSICAL RESEARCH LETTERS 46.11(2019):6059-6068.
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