ATMOSPHERE EARTH ANGULAR-MOMENTUM EXCHANGE AND ENSO CYCLE

The time series of the earth's rotation rate, eastern equatorial Pacif ic sea surface temperature (T-ss), sea level pressure (P-sl) and atmos pheric angular momentum (M(aa)) during 1976-1989 rue used to study the relation between atmosphere earth angular momentum exchange and ENSO cycle. The result shows that (i) there are synergetic relationships am ong the variations of solid earth's rotation, eastern equatorial Pacif ic T, P-sl, different latitude zonal M(aa) and global M(aa); (ii) loca l atmosphere-ocean interaction over low-latitude area can form ENSO-li ke cycle through Hadley circulation; (iii) the solid earth and global atmosphere-ocean interaction can form some aperiodic behavior and asyn chronous oscillations by mountain torque and earth spin anomalous fric tion torque acting on each component of solid earth-ocean-atmosphere s ystem; and (iv) actual ENSO cycle is a phenomenon reflecting in Pacifi c basin through interaction among solid earth, global ocean and the at mosphere.