@article{Ceppi:2013:10.1002/jgrd.50461,
author = {Ceppi, P and Hwang, Y-T and Liu, X and Frierson, DMW and Hartmann, DL},
doi = {10.1002/jgrd.50461},
journal = {Journal of Geophysical Research: Atmospheres},
pages = {5136--5146},
title = {The relationship between the ITCZ and the Southern Hemispheric eddy-driven jet},
url = {http://dx.doi.org/10.1002/jgrd.50461},
volume = {118},
year = {2013}
}

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TY  - JOUR
AB  - [1] We study the effect of a thermal forcing confined to the midlatitudes of one hemisphere on the eddydriven jet in the opposite hemisphere. We demonstrate the existence of an “interhemispheric teleconnection,” whereby warming (cooling) the Northern Hemisphere causes both the intertropical convergence zone (ITCZ) and the Southern Hemispheric midlatitude jet to shift northward (southward). The interhemispheric teleconnection is effected by a change in the asymmetry of the Hadley cells: as the ITCZ shifts away from the Equator, the crossequatorial Hadley cell intensifies, fluxing more momentum toward the subtropics and sustaining a stronger subtropical jet. Changes in subtropical jet strength, in turn, alter the propagation of extratropical waves into the tropics, affecting eddy momentum fluxes and the eddydriven westerlies. The relevance of this mechanism is demonstrated in the context of future climate change simulations, where shifts of the ITCZ are significantly related to shifts of the Southern Hemispheric eddydriven jet in austral winter. The possible relevance of the proposed mechanism to paleoclimates is discussed, particularly with regard to theories of ice age terminations.
AU  - Ceppi,P
AU  - Hwang,Y-T
AU  - Liu,X
AU  - Frierson,DMW
AU  - Hartmann,DL
DO  - 10.1002/jgrd.50461
EP  - 5146
PY  - 2013///
SN  - 2169-897X
SP  - 5136
TI  - The relationship between the ITCZ and the Southern Hemispheric eddy-driven jet
T2  - Journal of Geophysical Research: Atmospheres
UR  - http://dx.doi.org/10.1002/jgrd.50461
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000325212600007&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/jgrd.50461
UR  - http://hdl.handle.net/10044/1/76101
VL  - 118
ER  - 

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