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
Projections of changes in the low latitude atmospheric circulation under global warming are investigated using the results of the CMIP5 ensemble mean. For this purpose, 30-yr periods for the present day (1971~2000) and the end of the 21<SUP>st</SUP> century (2071~2100) according to the RCP emission scenarios are compared. The wintertime subtropical jet is projected to strengthen on the upper side of the jet due to increase in meridional temperature gradient induced by warming in the tropical upper-troposphere and cooling in the stratosphere except for the RCP2.6. It is also found that a strengthening of the upper side of the wintertime subtropical jet in the RCP2.6 due to tropical upper-tropospheric warmings. Model-based projection shows a weakening of the mean intensity of the Hadley cell, an upward shift of cell, and poleward shift of the Hadley circulation for the winter cell in both hemispheres. A weakening of the Walker circulation, which is one of the most robust atmospheric responses to global warming, is also projected. These results are consistent with findings in the previous studies based on CMIP3 data sets. A weakening of the Walker circulation is accompanied with decrease (increase) in precipitation over the Indo-Pacific warm pool region (the equatorial central and east Pacific). In addition, model simulation shows a decrease in precipitation over subtropical regions where the descending branch of the winter Hadley cell in both hemispheres is strengthened.
목차
Abstract
1. 서론
2. 자료 및 분석 방법
3. 21세기 말 저위도 대기 순환 전망
4. 요약 및 결론
REFERENCES
참고문헌 (27)
참고문헌 신청
1. [학술지(정기간행물)] - Butler, A. H / 2010 / The steady-state atmospheric circulation response to climate change-like thermal forcings in a simple general circulation model / J. Climate 23 : 3474 ~ 3496
2. [학술지(정기간행물)] - Collins, M / 2005 / El Nino- or La Nina-like climate change? / Clim. Dynam 24 : 89 ~ 104
3. [학술지(정기간행물)] - Eyring, V / 2013 / Long-term ozone changes and associated climate impacts in CMIP5 simulations / J. Geophys. Res. Atmos
4. [학술지(정기간행물)] - Frierson, D. M. W / 2007 / Width of the Hadley cell in simple and comprehensive general circulation models / Geophys. Res. Lett 34 : L18804 ~
5. [학술지(정기간행물)] - Gastineau, G / 2008 / Hadley circulation changes under global warming conditions indicated by coupled climate models / Tellus 60A : 863 ~ 884
2. [학술지(정기간행물)] - Collins, M / 2005 / El Nino- or La Nina-like climate change? / Clim. Dynam 24 : 89 ~ 104
3. [학술지(정기간행물)] - Eyring, V / 2013 / Long-term ozone changes and associated climate impacts in CMIP5 simulations / J. Geophys. Res. Atmos
4. [학술지(정기간행물)] - Frierson, D. M. W / 2007 / Width of the Hadley cell in simple and comprehensive general circulation models / Geophys. Res. Lett 34 : L18804 ~
5. [학술지(정기간행물)] - Gastineau, G / 2008 / Hadley circulation changes under global warming conditions indicated by coupled climate models / Tellus 60A : 863 ~ 884
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UCI(KEPA) : I410-ECN-0101-2015-450-001064669