THE INTERACTIONS BETWEEN DOMINATING MODES OF THE SEA SURFACE TEMPERATURE IN TROPICAL PACIFIC AND TROPICAL ATLANTIC
热带太平洋与热带大西洋海表温度主模态的相互作用

Based on the Sea Surface Temperature (SST) data of Hadley Centre and NCEP/NCAR atmospheric reanalysis, the interactions between the SST anomalies in Tropical Pacific and Tropical Atlantic are studied. The Pacific ENSO can give rise to Atlantic Ni?o Mode (ANM) or Atlantic Meridional Dipole Mode. This depends on whether ENSO influences the Atlantic through the tropical ocean-atmosphere interaction between both oceans or through the response of mid-latitude atmospheric circulation anomalies by Pacific-North America teleconnection mechanism. The warm (cold) ANM should lead to the cooling (warming) in the central and eastern Equatorial Pacific through two possible ways: The warm (cold) ANM should induce the Indian Ocean warming (cooling), which triggers easterly (westerly) wind anomalies in tropical Pacific and then the development of La Ni?a (El Ni?o) through ocean-atmosphere interaction positive feedback mechanism. In addition the warm (cold) ANM should directly strengthen (weaken) the Walker Circulation in Pacific and decrease (increase) SST anomalies in eastern Equatorial Pacific.