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Kang, Sarah M.
Climate Dynamics Lab
Research Interests
  • Climate change, ITCZ, Atmospheric general circulation, Polar amplification


Walker circulation response to extratropical radiative forcing

DC Field Value Language Kang, Sarah M. ko Xie, Shang-Ping ko Shin, Yechul ko Kim, Hanjun ko Hwang, Yen-Ting ko Stuecker, Malte F. ko Xiang, Baoqiang ko Hawcroft, Matt ko 2021-01-07T08:46:27Z - 2020-12-16 ko 2020-11 ko
dc.identifier.citation SCIENCE ADVANCES, v.6, no.47, pp.eabd3021 ko
dc.identifier.issn 2375-2548 ko
dc.identifier.uri -
dc.description.abstract Walker circulation variability and associated zonal shifts in the heating of the tropical atmosphere have far-reaching global impacts well into high latitudes. Yet the reversed high latitude-to-Walker circulation teleconnection is not fully understood. Here, we reveal the dynamical pathways of this teleconnection across different components of the climate system using a hierarchy of climate model simulations. In the fully coupled system with ocean circulation adjustments, the Walker circulation strengthens in response to extratropical radiative cooling of either hemisphere, associated with the upwelling of colder subsurface water in the eastern equatorial Pacific. By contrast, in the absence of ocean circulation adjustments, the Walker circulation response is sensitive to the forcing hemisphere, due to the blocking effect of the northward-displaced climatological intertropical convergence zone and shortwave cloud radiative effects. Our study implies that energy biases in the extratropics can cause pronounced changes of tropical climate patterns. ko
dc.language 영어 ko
dc.title Walker circulation response to extratropical radiative forcing ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85096814197 ko
dc.identifier.wosid 000592173500041 ko
dc.type.rims ART ko
dc.identifier.doi 10.1126/sciadv.abd3021 ko
dc.identifier.url ko
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