The Role of the Asian/Australian Monsoons and the Southern/Northern Oscillation in the ENSO Cycle

Abstract

In this paper, we first examine the relationship of El Nino and La Nina events with the westerly wind anomalies over the western Pacific warm pool. On this basis, the roles of the Asian and Australian winter monsoons in the formation and progress of the westerly wind anomalies are studied. Finally, we analyze the associations of the Asian and Australian winter monsoons, the westerly wind anomalies and the El Nino and La Nina alternations with the propagating anomalies of the Southern and Northern Oscillation.