Seo, Jihoon Choi, Wookap Youn, Daeok Park, Doo-Sun R. Kim, Jin Young 2024-01-20T11:02:53Z 2024-01-20T11:02:53Z 2021-09-04 2013-11-28 0094-8276 https://pubs.kist.re.kr/handle/201004/127424 The effects of the stratospheric quasi-biennial oscillation (QBO) on spring rainfall in the western North Pacific (WNP) are investigated using observational and reanalysis data for 1979-2012. After excluding the strong El Nino-Southern Oscillation events, composite analyses between opposite phases of the QBO are applied to the rainfall and related meteorological fields to show the differences in each QBO phase. In comparison with the easterly phase, during the westerly QBO, a midlatitude spring rainband extending from southeastern China to the east of the Japanese Islands is displaced southward, and thus, the spring rainfall over Korea and Japan exhibits a significant decrease. Such changes in the spring WNP rainfall are related to the location and intensity of the WNP subtropical high (WNPSH) and the East Asian jet (EAJ). The possible role of the QBO in modulating the WNPSH and the EAJ is discussed with regard to the strength of the Hadley circulation. English AMER GEOPHYSICAL UNION INTERANNUAL VARIABILITY PRECIPITATION MONSOON QBO Relationship between the stratospheric quasi-biennial oscillation and the spring rainfall in the western North Pacific Article 10.1002/2013GL058266 1 GEOPHYSICAL RESEARCH LETTERS, v.40, no.22, pp.5949 - 5953 GEOPHYSICAL RESEARCH LETTERS 40 22 5949 5953 scie scopus 000328210600023 2-s2.0-84887954079 Geosciences, Multidisciplinary Geology Article INTERANNUAL VARIABILITY PRECIPITATION MONSOON QBO quasi-biennial oscillation spring rainfall WNP subtropical high East Asian jet