지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록· 키워드
오류제보하기
A new multi-timescale analysis method, Ensemble Empirical Mode Decomposition (EEMD), is used to diagnose the variation of the MJO activity determined by 850h㎩ and 200h㎩ zonal winds from the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) Reanalysis data for the 56-yr period from 1950 to 2005. The results show that MJO activity can be decomposed into 9 quasi-periodic oscillations and a trend. With each level of contribution of the quasi-periodic oscillation discussed, the bi-seasonal oscillation, the interannual oscillation and the trend of the MJO activity are the most prominent features. The trend increases almost linearly, so that prior to around 1978 the activity of the MJO is lower than that during the latter part. This may be related to the tropical sea surface temperature(SST). It is speculated that the interdecadal change in the MJO activity appeared in around 1978 is related to the warmer SST in the equatorial warm pool, especially over the Indian Ocean.
목차
Abstract
1. 서론
2. 분석방법
3. 결합 EOF분석을 통한 MJO강도
4. MJO 강도의 다중스케일 분석
5. 결론
감사의 글
참고문헌
참고문헌 (22)
참고문헌 신청
1. [학술지(정기간행물)] - Bergman, J. W. / 2001 / Intraseasonal air-sea interactions at the onset of El Nino / J. Climate 14 : 1702 ~ 1719
2. [학술지(정기간행물)] - Lawrence, D. M / 2002 / The boreal summer intraseasonal oscillation: Relationship between northward and eastward movement of convection / J. Atmos. Sci 59 : 1593 ~ 1606
3. [학술지(정기간행물)] - Lin, Z.-S / 2007 / Multi-scale analysis of global temperature changes and trend of a drop in temperature in the next 20 years / Meteorol Atmos Phys 95 : 115 ~ 121
4. [학술지(정기간행물)] - Love, B. S / 2008 / Real-time extraction of the Madden-Julian Oscillation using empirical mode decomposition and statistical forecasting with a VARMA model / J. Climate 21 : 5318 ~ 5335
5. [학술지(정기간행물)] - Hendon, H. H / 1990 / A composite study of onset of the Australian summer monsoon / J. Atmos. Sci 47 : 2227 ~ 2239
2. [학술지(정기간행물)] - Lawrence, D. M / 2002 / The boreal summer intraseasonal oscillation: Relationship between northward and eastward movement of convection / J. Atmos. Sci 59 : 1593 ~ 1606
3. [학술지(정기간행물)] - Lin, Z.-S / 2007 / Multi-scale analysis of global temperature changes and trend of a drop in temperature in the next 20 years / Meteorol Atmos Phys 95 : 115 ~ 121
4. [학술지(정기간행물)] - Love, B. S / 2008 / Real-time extraction of the Madden-Julian Oscillation using empirical mode decomposition and statistical forecasting with a VARMA model / J. Climate 21 : 5318 ~ 5335
5. [학술지(정기간행물)] - Hendon, H. H / 1990 / A composite study of onset of the Australian summer monsoon / J. Atmos. Sci 47 : 2227 ~ 2239
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UCI(KEPA) : I410-ECN-0101-2013-453-000429818