Title: A Study of the Response of El Nino/Southern Oscillation to External Forcing in the Tropical Western Pacific
Abstract: This paper studies how the inter-seasonal oscillation(MJO) and monsoon in the tropical western Pacific influence the El Nino/Southern Oscillation(ENSO) by using the coupled ocean-atmosphere model. The numerical experiment shows that the influence of MJO or monsoon in the western Pacific on the ENSO is different when the intensity of MJO or monsoon is different. When the intensity of MJO or monsoon is weak, it may excite strong ENSO events, but when the intensity of MJO or monsoon is intermediate, it can hardly affect the ENSO; and when the external forcing is stronger, the amplitude of the ENSO is decreased, the period is shortened and the phase-locking changes from wintertime to fall time; when the external forcing is extremely strong, the entrainment of the MJO or monsoon and low frequency variability of ENSO leads to the decrease of the amplitude of the ENSO and the appearance of new oscillation with new periods.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot