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Dependence of Projected Future Change in the Arctic Oscillation on the Stratospheric Wave Activity among High-top CMIP5 Models

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Title
Dependence of Projected Future Change in the Arctic Oscillation on the Stratospheric Wave Activity among High-top CMIP5 Models
Authors
Kim, Joo-Hong
Kim, Ji-Won
Kim, Baek-Min
Kim, Seong-Joong
Issue Date
2014
Citation
Kim, Joo-Hong, et al. 2014. Dependence of Projected Future Change in the Arctic Oscillation on the Stratospheric Wave Activity among High-top CMIP5 Models. 2014 the Autumn Meeting of KMS. JeJu. 2014.10.13-15.
Abstract
The Arctic Oscillation (AO) is a zonally symmetric mode of mass exchange (also, zonal-mean zonal winds) between the mid- and high-latitude in the Northern Hemisphere with a vertically equivalent barotropic structure (Thompson and Wallace 2000). The AO owes its existence to the wave-mean flow interaction in the mid-latitude westerly zone (Limpasuvan and Hartmann 2000). One of way of the wave-mean flow interaction is that the breaking or absorption of planetary waves (i.e., the convergence of Eliassen- Palm (EP) fluxes) locally changes the speed of zonalmean zonal winds (Eliassen and Palm 1960), which should influence the AO phase. In the present study, projected future AO changes are evaluated among historical and representative concentration pathway (RCP) scenario runs of the 5th phase Coupled Model Intercomparison Project (CMIP5) models (Taylor et al. 2012), in the context of the wave-mean flow interaction in the troposphere and stratosphere
Conference Name
2014 the Autumn Meeting of KMS
Conference Place
JeJu
Conference Date
2014.10.13-15
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