ENSO가 동아시아 여름 몬순과 북서태평양 여름 몬순 상관성의 십년 주기 변동성에 미치는 영향

Abstract

A recent study suggested that the relationship between the East Asian summermonsoon (EASM) and the western North Pacific summer monsoon (WNPSM) hasexperienced a decadal change around 1993-1994. Based on a longer-term integrationof a hybrid coupled model, the present study investigates decadal variations in therelationship between the EASM and the WNPSM. Apparent decadal variations in theabove relationship have been identified in the model simulation. The authors haveanalyzed the spatial pattern and variability during strong and weak EASM-WNPSMcorrelation periods. The purpose of this study is to understand potential reasons fordecadal variations in the relationship between above two sub-monsoons. It is foundthat the precipitation variability associated with the WNPSM (ENSO) is enhancedover the East Asia and western North Pacific regions during periods when theEASM-WNPSM relationship is strong (weak). The results suggest that ENSO candestructively interfere with the relationship between the EASM and the WNPSM.