Abstract: Model evidence is presented to make the case that the midlatitude North Pacific wintertime transient eddy activity may have been significantly weaker during the mid-Holocene (?6000 yr BP). A simulation of the mid-Holocene ...

Abstract: The warming of the entire tropical free troposphere in response to El Niño is well established, and suggests a tropical mechanism for the El Niño?Southern Oscillation (ENSO) teleconnection. The potential impact of this ...

Abstract: From observational analysis a Pacific mode of variability in the intertropical convergence zone (ITCZ)/cold tongue region is identified that possesses characteristics and interpretation similar to the dominant ?meridional? ...

Abstract: The authors demonstrate through atmospheric general circulation model (the Community Climate Model version 3.10) simulations of the 1997/98 El Niño that the observed ?remote? (i.e., outside the Pacific) tropical land and ...

Abstract: The applicability of a weak temperature gradient (WTG) formulation for the reorganization of tropical climate during El Niño?Southern Oscillation (ENSO) events is investigated. This idealized dynamical framework solves for ...

Abstract: Previous diagnostic studies of surface wind momentum balances over tropical oceans showed that, under a linear friction assumption, the meridional friction coefficient is two to three times larger than the zonal friction ...

Abstract: The adjustment of the tropical climate outside the Pacific (the ?remote Tropics?) to the abrupt onset of El Niño conditions is examined in a tropical atmosphere model that assumes simplified vertical structure and ...

Abstract: AbstractThe Holocene East Asian summer monsoon (EASM) was previously characterized as a trend toward weaker monsoon intensity paced by orbital insolation. It is demonstrated here that this evolution is more accurately ...

Abstract: he role of the central Asian mountains on North Pacific storminess is examined using an atmospheric general circulation model by varying the height and the areas of the mountains. A series of model integrations show that ...