대기중 CO2 증가에 따른 ENSO 강도의 변화

Title
대기중 CO2 증가에 따른 ENSO 강도의 변화
Alternative Title
ENSO amplitude changes in climate change commitment to atmospheric CO2 doubling
Author(s)
예상욱; 박영규; Ben Kirtman
KIOST Author(s)
Park, Young Gyu(박영규)
Publication Year
2006-05-16
Abstract
Simulations from six climate system models are analyzed to investigate the ENSO amplitude changes in response to a transient increase of the atmospheric CO2. It is found that the ENSO amplitude amplifies as the CO2 concentration increases, then weakens once the concentration is held fixed at 2xCO2 level in the Meteorological Research Institute (MRI) model simulation, but with no significant sensitivity in the other five models. By comparing the MRI and the Geophysical Fluid Dynamical Laboratory (GFDL) models, both of which simulate ENSO reasonably well for the unperturbed climate, we investigate the origin of the sensitivity or lack of sensitivity of the ENSO amplitude to changes in atmospheric CO2 concentration. It is found that in the MRI model the oceanic sensitivity to the equatorial zonal wind stress is significantly decreased in the doubled CO2 period compared to the transient period. Moreover, the vertical stratification at upper levels is weaker in the former period than in the latter period. However, these changes in the GFDL model are negligible.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31033
Bibliographic Citation
한국해양학회초록집, pp.133, 2006
Publisher
한국해양학회
Type
Conference
Language
English
Publisher
한국해양학회
Files in This Item:
There are no files associated with this item.

qrcode

Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse