Observations Summary: Review ■Zonal-mean flow: Ferrel Cell:an indirect cell centered at 40-60 degree,with strong seasonal variation in N.H. Westerly jet:surface westerlies centered at 40-60 degree ■ Eddies:transient eddies are dominant with stationary eddies only obvious in N.H. ■Kinetic energy ■Momentum flux ■Heat flux 授课教师：张洋33 Observations \ 授课教师：张洋 n Summary: n Zonal-mean flow: n Ferrel Cell: an indirect cell centered at 40-60 degree, with strong seasonal variation in N.H. n Westerly jet: surface westerlies centered at 40-60 degree n Eddies: transient eddies are dominant with stationary eddies only obvious in N.H. n Kinetic energy n Momentum flux n Heat flux Review