Changes in ENSO in Response to Greenhouse Warming as Simulated by the CCSR/NIES/FRCGC Coupled GCM
نویسندگان
چکیده
منابع مشابه
Detecting the Nonstationary Response of ENSO to Greenhouse Warming
On the basis of the latest greenhouse warming experiment performed with the coupled general circulation model ECHAM4/OPYC it is shown that not only the climate mean but also the statistics of higher order statistical moments respond signi cantly to greenhouse warming. In particular the El Ni~ no-Southern Oscillation (ENSO) cycle obtains more energy and a tendency towards stronger cold events ca...
متن کاملENSO and greenhouse warming
849 The impacts of anthropogenic climate change may be felt through changes in modes of natural climatic vari ability. ENSO is the most important year-to-year fluctuation of the climate system on the planet1, varying between anomalously cold (La Niña) and warm (El Niño) condi tions. Underpinning occurrences of ENSO events is the positive feedback between trade wind intensity and zonal contrasts...
متن کاملMechanisms for ENSO Phase Change in a Coupled GCM
The mechanisms leading to El Niño onset and termination in the ECHAM4/OPA coupled GCM are assessed and compared to observations and existing ENSO paradigms. At the equator as well as off equator, the patterns and timing of modeled El Niño composites are in good agreement with those observed. Heat content of the west Pacific is confirmed as a precursor to ENSO phase change, and the present work ...
متن کاملRole of the ENSO–Indian Ocean coupling on ENSO variability in a coupled GCM
[1] The effect of the Indian Ocean on El Niño/La Niña life cycles has been studied using 200-yrs simulation data of a coupled GCM. The results show that the interactive feedback between the ENSO and the Indian Ocean holds the key to the rapid transition to an opposite phase. This remote impact of the IndianOceanSSTanomaly is linked to the change of zonal wind stress in the western Pacific, whic...
متن کاملMean Climate Controls on the Simulated Response of ENSO to Increasing Greenhouse Gases
Climate model experiments are analyzed to elucidate if and how the changes in mean climate in response to doubling of atmospheric CO2 (2xCO2) influence ENSO. The processes involved the development, transition, and decay of simulated ENSO events are quantified through a multimodel heat budget analysis. The simulated changes in ENSO amplitude in response to 2xCO2 are directly related to changes i...
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ژورنال
عنوان ژورنال: SOLA
سال: 2005
ISSN: 1349-6476
DOI: 10.2151/sola.2005-039