及图 t"0*)k 下=-u*o*1j+fa0e/0p we enero propagate upwards and away from the center of Rossby waves break dissipate Momentum the jet divergence Stirring Momentum 子=CgA convergence Rossby waves Momentum break dissipate divergence ∂ Ot <[u>=- [u'v*]>-r[usurf] <means vertical average 授课教师：张洋7
@ @t < [u] >= @ @y < [u⇤v⇤] > r[usurf] 授课教师：张洋 7 F ~ = c ~ gA F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k Wave energies: propagate upwards and away from the center of the jet < > means vertical average i i i i i i i i Fig. 12.3 Generation of zonal flow on a -plane or on a rotating sphere. Stirring in mid-latitudes (by baroclinic eddies) generates Rossby waves that propagate away from the disturbance. Momentum converges in the region of stirring, producing eastward flow there and weaker westward flow on its flanks. From Vallis (2006) From Vallis (2006) Review
t"0*)k 下=-u**1j+fo9a/p Review Wave energis: propagate upwards and away from the center of Rossby waves break dissipate Momentum the jet divergence Stirring Momentum 子=cgA convergence In equilibrium: 、个 Rossby waves Momentum break dissipate divergence rlaund ∂ 8t <u>=- [u'v*]>-r[usurf] <means vertical average 授课教师：张洋7
@ @t < [u] >= @ @y < [u⇤v⇤] > r[usurf] r[usurf] ⇠ @ @y < [u⇤v⇤] > 授课教师：张洋 7 F ~ = c ~ gA F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k Wave energies: propagate upwards and away from the center of the jet < > means vertical average i i i i i i i i Fig. 12.3 Generation of zonal flow on a -plane or on a rotating sphere. Stirring in mid-latitudes (by baroclinic eddies) generates Rossby waves that propagate away from the disturbance. Momentum converges in the region of stirring, producing eastward flow there and weaker westward flow on its flanks. From Vallis (2006) From Vallis (2006) In equilibrium: Review
*01k 下=-u*v*1j+fo0e/0p Review Wave energis: propagate upwards and away from the center of Rossby waves break dissipate Momentum the jet divergence Stirring Momentum convergence In equilibrium: 子=cgA 、个 Rossby waves Momentum break dissipate divergence rluauei 8 <u>=- [u'v*]>-r[usurf] There MUST be surface 8t westerlies at midlatitudes. <means vertical average 授课教师：张洋7
@ @t < [u] >= @ @y < [u⇤v⇤] > r[usurf] r[usurf] ⇠ @ @y < [u⇤v⇤] > 授课教师：张洋 7 F ~ = c ~ gA F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k Wave energies: propagate upwards and away from the center of the jet < > means vertical average i i i i i i i i Fig. 12.3 Generation of zonal flow on a -plane or on a rotating sphere. Stirring in mid-latitudes (by baroclinic eddies) generates Rossby waves that propagate away from the disturbance. Momentum converges in the region of stirring, producing eastward flow there and weaker westward flow on its flanks. From Vallis (2006) From Vallis (2006) In equilibrium: There MUST be surface westerlies at midlatitudes. Review
Eddy-driven jet: w"0]k 下=-[u**]j+f0./m the momentum budget-Review Wave energis: propagate upwards and away from the center of Rossby waves break dissipate Momentum the jet divergence Stirring Momentum 子=cgA convergence In equilibrium: 个 Rossby waves Momentum lan ∂ break dissipate divergence a <u>=- [u"v*]>-rlusurt] There MUST be surface 8t westerlies at midlatitudes. <means vertical average 授课教师：张洋7
@ @t < [u] >= @ @y < [u⇤v⇤] > r[usurf] r[usurf] ⇠ @ @y < [u⇤v⇤] > 授课教师：张洋 7 F ~ = c ~ gA F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k Wave energies: propagate upwards and away from the center of the jet < > means vertical average i i i i i i i i Fig. 12.3 Generation of zonal flow on a -plane or on a rotating sphere. Stirring in mid-latitudes (by baroclinic eddies) generates Rossby waves that propagate away from the disturbance. Momentum converges in the region of stirring, producing eastward flow there and weaker westward flow on its flanks. From Vallis (2006) From Vallis (2006) Eddy-driven jet: - the momentum budget In equilibrium: There MUST be surface westerlies at midlatitudes. Review
t"0")k F≡-[u'v*1j+f0e/p F=cgA E-P FLUX TRANSIENT EDDIES (a) 5×1015 () -1.25×1015 DJF JJA 2 2 ×<11-1 3 1-4 6 1t111, 6 7 -2111H+, :11111 9 87 9 10 10 10 1020 30 40 5060 7080N 1020 30 4050 60 70 80N 授课教师：张洋8
http://www.adultpdf.com Created by Image To PDF trial version, to remove this mark, please register this software. 授课教师：张洋 8 F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k F ~ = c ~ gA