E1 Nio phenomenon in simple ocean data assimilation data

摘要

To study how the air and sea interact with each other during El Ni o/La Nina onsets, extended associate pattern analysis (EAPA) isadopted with the simple ocean data assimilation (SODA) data. The results show that as El Nino/La Nina’s parents their behaviors arequite different, there does not exist a relatively independent tropical atmosphere but does exist a relatively independent tropical PacificOcean because the air is heated from the bottom surface instead of the top surface and of much stronger baroclinic instability than thesea and has a very large inter-tropical convergence zone covering the most tropical Pacific Ocean. The idea that it is the wester burstand wind convergence, coming from middle latitudes directly that produce the seawater eastward movement and meridionalconvergence in the upper levels and result in the typical El Nino sea surface temperature warm signal is confirmed again.