Physics
Scientific paper
Jun 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3711804b&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 11, CiteID L11804
Physics
13
Atmospheric Processes: General Circulation (1223), Atmospheric Processes: Theoretical Modeling, Atmospheric Processes: Climate Change And Variability (1616, 1635, 3309, 4215, 4513)
Scientific paper
An asymmetry in the persistence of the eddy-driven jet is demonstrated, whereby the equatorward-shifted (low-phase) jet is more persistent than the poleward-shifted (high-phase) jet. The asymmetry is investigated by stirring the non-divergent vorticity equation on the sphere and is shown to arise due to the sphericity of the earth, which inhibits poleward wave breaking when the jet is at high latitudes. This spherical effect becomes increasingly important as the mean jet is positioned at higher latitudes. The persistence of the annular mode decreases as the mean jet moves closer to the pole due to the decreased persistence of the high-phase state, while the low-phase state exhibits similar persistence regardless of the jet position. These results suggest that with the expected poleward shift of the jet due to increasing greenhouse gases, the annular mode's total persistence will decrease due to a decrease in the persistence of the high-phase.
Barnes Elizabeth A.
Frierson Dargan M. W.
Hartmann Dennis L.
Kidston Joseph
No associations
LandOfFree
Effect of latitude on the persistence of eddy-driven jets does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Effect of latitude on the persistence of eddy-driven jets, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effect of latitude on the persistence of eddy-driven jets will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1830299