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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국기상학회 Asia-Pacific Journal of Atmospheric Sciences Asia-Pacific Journal of Atmospheric Sciences Vol.44 No.4
- 발행연도
- 2008.11
- 수록면
- 351 - 368 (18page)
이용수
초록· 키워드
오류제보하기
In order to investigate the change in the western North Pacific summer monsoon (WNPSM) caused by an increase in the level of atmospheric carbon dioxide (CO₂), nine coupled general circulation models (CGCMs) designed for the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report (AR4) are chosen, and their simulations are analyzed for the 20th century (20C3M) and CO₂-quadrupling scenario (1pctto4x) experiments. The summer (JJA) mean climatology for several variables is analyzed in order to investigate the mean field change in the WNPSM circulation and the cause of this change. By performing the JJA mean analysis, we found that the rainfall over the WNPSM region, especially summer rainfall, increases with the CO₂ concentration, which results from the enhanced conditional instability caused by the warm sea-surface temperature (SST) and increased moisture, despite a slight weakening of the low-level convergence. On the other hand, to examine the change in the interannual variability of the WNPSM, we performed a composite analysis of the differences between the strong and the weak monsoon years with respect to a newly defined WNPSM index. In the precipitation analysis, it was clarified that the monsoon variability would increase with global warming over the WNPSM region. The SST analysis revealed that the lag relationship between El Nino-Southern Oscillation (ENSO) and WNPSM would be weakened with an increase in the CO₂ concentration, implying that prediction of the WNPSM would become slightly difficult. On the basis of global warming scenario results obtained from the IPCC AR4 models, it is concluded that both the intensity and variability of the WNPSM would increase with CO₂ concentration.
목차
Abstract
1. Introduction
2. Data and methodology
3. Mean field change in WNPSM circulation
4. Change in interannual variation of WNPSM intensity
5. Summary and discussion
REFERENCES
참고문헌 (29)
참고문헌 신청
1. [학술지(정기간행물)] - Annamalai, H. / 2007 / TheSouth Asian summer monsoon and its relationship withENSO in the IPCC AR4 simulations / J. Climate 20 : 1071 ~ 1092
2. [학술지(정기간행물)] - Chou, C. / 2003 / Interannual variabilityof the western North Pacific summer monsoon:Differences between ENSO and non-ENSO years / J.Climate 16 : 2275 ~ 2287
3. [학술지(정기간행물)] - Fujibe, F. / 2005 / The increasing trend of intense precipitation inJapan based on four-hourly data for a hundred years / Sci.Online Lett. Atmos 1 : 41 ~ 44
4. [학술지(정기간행물)] - Hu, Z. Z. / 2000 / Intensified Asian summer monsoon and its variabilityin a coupled model forced by increasing greenhouse gasconcentrations / Geophys. Res. Lett 27 : 2681 ~ 2684
5. [학술지(정기간행물)] - Kalnay, E. / 1996 / he NCEP/NCAR40-year reanalysis project / Bull. Amer. Meteor. Soc 77 : 437 ~ 471
2. [학술지(정기간행물)] - Chou, C. / 2003 / Interannual variabilityof the western North Pacific summer monsoon:Differences between ENSO and non-ENSO years / J.Climate 16 : 2275 ~ 2287
3. [학술지(정기간행물)] - Fujibe, F. / 2005 / The increasing trend of intense precipitation inJapan based on four-hourly data for a hundred years / Sci.Online Lett. Atmos 1 : 41 ~ 44
4. [학술지(정기간행물)] - Hu, Z. Z. / 2000 / Intensified Asian summer monsoon and its variabilityin a coupled model forced by increasing greenhouse gasconcentrations / Geophys. Res. Lett 27 : 2681 ~ 2684
5. [학술지(정기간행물)] - Kalnay, E. / 1996 / he NCEP/NCAR40-year reanalysis project / Bull. Amer. Meteor. Soc 77 : 437 ~ 471
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