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NTIS 바로가기한국지구과학회지 = Journal of the Korean Earth Science Society, v.35 no.4, 2014년, pp.249 - 258
위지은 (전북대학교 과학교육학부) , 문병권 (전북대학교 과학교육학부) , 김기영 ((주)포디솔루션) , 이조한 (국립기상연구소)
Despite the greenhouse gases like carbon dioxide have steadily increased in atmosphere, the overall trend of the global average surface air temperature has stalled during the last decade (2002-present). This phenomenon is often called hiatus or warming pause, which is challenging the prevailing view...
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핵심어 | 질문 | 논문에서 추출한 답변 |
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HadGEM2-AO는 어떤 모델들이 결합하여 구성되는가? | HadGEM2-AO 모델은 CMIP5 (Coupled Model Intercomparision Project Phase 5)에 참여하고 있으며, 에어로졸 과정이 포함된 대기모델, 지면모델, 해양모델, 해빙모델이 결합하여 구성된다(Flato et al., 2013). | |
지구 온난화 멈춤이란 무엇인가? | 대기 중 이산화탄소 등의 농도가 지속적으로 증가하고 있음에도 최근 10여 년 동안(2002-현재) 전지구 지표 온도는 거의 답보상태에 머물러 있다. 이처럼 온실기체 강제력에도 불구하고, 지구 온난화 경향이 사라진 듯 보이는 현상을 지구 온난화 멈춤(hiatus)이라 한다. 이 연구는 HadGEM2-AO가 모의한 RCP8. | |
온난화 멈춤 현상 시 해양은 어떤 상태인 것으로 알려져 있는가? | 이처럼 온난화 멈춤 현상은 최근 들어 활발한 관심을 받고 있으며, 대체로 많은 연구들이 해양의 열 흡수 과정을 그 원인으로 제시하고 있다. 이때 해양은 동태평양에 음의 해수면온도 편차가 발생하는 라니냐 시기나(Meehl et al., 2011; Held, 2013), 태평양의 장주기 변동인 Interdecadal Pacific Oscillation의 음의 위상 상태(Kosaka and Xie, 2013)인 것으로 알려지고 있다. 전지구 평균 지표 기온이 엔소(El Nino-Southern Oscillation)에 크게 영향 받는 것을(Lean and Rind, 2009; Foster and Rahmstorf, 2011)고려하면, 엔소와 온난화 멈춤과의 관련성을 예상할 수 있다. |
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