Web1 de mar. de 2012 · It is found that, with approximately wintertime settings of parameters (a radiative equilibrium equator–pole temperature contrast of 60 K), the midlatitude jets in this model are self-maintaining. WebHadley cell expansion, midlatitude jet shifts, shortwave cloud radiative effects 1 INTRODUCTION In a changing climate, large-scale circulation features (such as the eddy-driven midlatitude jets and the poleward edges of the Hadley circulation) are expected to shift meridionally. While variability in positions of the jet
Detection of Rossby wave breaking and its response to shifts of …
Web3 de ago. de 2010 · [11] It remains to be seen whether the effect of latitude on τ Z is large enough to be seen when the jet shifts within a single model. Figure 1b displays the intramodel change in e-folding time of the annular mode (Δτ Z) against the shift of the jet (Δ jet latitude) between different forcing scenarios.The integrations show a consistent … WebAbstractA stirred barotropic model on a sphere is used to investigate the relationship between the speed and the latitude of an eddy-driven jet. When the wind speed is increased in the model, the jet shifts poleward, despite the fact that the stirring of vorticity remains statistically constant. The cause is found to be increasing meridional shear that results … filled in all the blanks
Detection of Rossby wave breaking and its response to shifts of …
WebTo see the other types of publications on this topic, follow the link: Maintaining the self. Author: Grafiati. Published: 4 June 2024 Last updated: 11 February 2024 Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles. Select a source type: Book ... WebRequest PDF On the Self-Maintenance of Midlatitude Jets In this paper an atmospheric jet is considered self-maintaining if the overall effect of baroclinic eddies is to preserve or … WebAlthough it is well known that the persistence of extratropical jet shifts is enhanced by a positive eddy feedback, the dynamics of this feedback is still debated. Two types of mechanisms have been proposed: barotropic mechanisms rely on changes in upper-level propagation and baroclinic mechanisms rely on the coupling between barotropic and … filled in asl