152
L.-L. Fu
Fig. 9.2 The global propagation characteristics of long-lived cyclonic and anti-cyclonic eddies
with lifetimes longer than 12 weeks. Upper panels: relative changes in longitude (negative
westward) and latitude (poleward vs. equatorward). Lower left panels: histograms of the mean
propagation angle relative to due west. Lower right panel: latitudinal variation of the westward
zonal propagation speeds of large-scale sea surface height (black dots) and small-scale eddies (red
dots) along the selected zonal sections considered previously by Chelton and Schlax (1996). The
global zonal average of the propagation speeds is shown in the right panel by the red line, with
gray shading to indicate the central 68% of the distribution in each latitude band, and the propagation speed of nondispersive baroclinic Rossby waves is shown by the black line (from Chelton
et al., 2007)
L.-L. Fu
Fig. 9.2 The global propagation characteristics of long-lived cyclonic and anti-cyclonic eddies
with lifetimes longer than 12 weeks. Upper panels: relative changes in longitude (negative
westward) and latitude (poleward vs. equatorward). Lower left panels: histograms of the mean
propagation angle relative to due west. Lower right panel: latitudinal variation of the westward
zonal propagation speeds of large-scale sea surface height (black dots) and small-scale eddies (red
dots) along the selected zonal sections considered previously by Chelton and Schlax (1996). The
global zonal average of the propagation speeds is shown in the right panel by the red line, with
gray shading to indicate the central 68% of the distribution in each latitude band, and the propagation speed of nondispersive baroclinic Rossby waves is shown by the black line (from Chelton
et al., 2007)