E-P flux and the eddy-driven jet -summary u*0*1k 下≡-u*w*]j+f09/0p F=CgA Numerical results and observations:eddies generate in the lower level, propagate upwards and away from the eddy source region. =f间+V.F+F到 Ot Accelerating the lower jet,decelerating the upper jet,reduce the vertical shear of U 授课教师：张洋9
授课教师：张洋 9 F ~ = c ~ gA @[u] @t = f ˜[v] + r · F + [Fx] F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k E-P flux and the eddy-driven jet -summary • Numerical results and observations: eddies generate in the lower level, propagate upwards and away from the eddy source region. • Accelerating the lower jet, decelerating the upper jet, reduce the vertical shear of U
E-P flux and the eddy-driven jet -summary @*01k 下≡-{u*v*]j+f09/0p F=cgA Numerical results and observations:eddies generate in the lower level, propagate upwards and away from the eddy source region. =fa+V.F+F到 Ot Accelerating the lower jet,decelerating the upper jet,reduce the vertical shear of U Momentum budget indicates that there MUST be surface westerlies in the eddy source latitude. 授课教师：张洋9
授课教师：张洋 9 F ~ = c ~ gA @[u] @t = f ˜[v] + r · F + [Fx] F ⌘ [u⇤v⇤] j + f [v⇤✓⇤] @✓s/@p k E-P flux and the eddy-driven jet -summary • Numerical results and observations: eddies generate in the lower level, propagate upwards and away from the eddy source region. • Accelerating the lower jet, decelerating the upper jet, reduce the vertical shear of U • Momentum budget indicates that there MUST be surface westerlies in the eddy source latitude
及图乐 Outline Observations The Ferrel Cell ■ Baroclinic eddies Review:baroclinic instability and baroclinic eddy life cycle Eddy-mean flow interaction,E-P flux Transformed Eulerian Mean equations Eddy-driven jet The energy cycle 授课教师：张洋10
授课教师：张洋 10 Outline n Observations n The Ferrel Cell n Baroclinic eddies n Review: baroclinic instability and baroclinic eddy life cycle n Eddy-mean flow interaction, E-P flux n Transformed Eulerian Mean equations n Eddy-driven jet n The energy cycle
点国乐 Energy cycles in the baroclinic eddy-mean flow interactions Basic forms of energy: 授课教师：张洋11
授课教师：张洋 11 Energy cycles in the baroclinic eddy-mean flow interactions n Basic forms of energy:
点国乐 Energy cycles in the baroclinic eddy-mean flow interactions Basic forms of energy: ·Kinetic energy(恸能)： K=22+2+w)a2+2) 授课教师：张洋11
K = 1 2 (u2 + v2 + w2) ⇡ 1 2 (u2 + v2) 授课教师：张洋 11 Energy cycles in the baroclinic eddy-mean flow interactions n Basic forms of energy: n Kinetic energy (动能):