The Hindcast of Winter and Spring Arctic and Antarctic Oscillation with the Coupled Climate Models |
| |
Authors: | Zhuolei Qian Huijun Wang Jianqi Sun |
| |
Affiliation: | Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029
Climatic Change Research Center, Chinese Academy of Sciences, Beijing 100029
Graduate School of Chinese Academy of Sciences, Beijing 100049;Climatic Change Research Center, Chinese Academy of Sciences, Beijing 100029
Graduate School of Chinese Academy of Sciences, Beijing 100049;Climatic Change Research Center, Chinese Academy of Sciences, Beijing 100029
Graduate School of Chinese Academy of Sciences, Beijing 100049 |
| |
Abstract: | This study evaluates the ability of the global coupled climate models in hindcasting the Arctic Oscillation (AO) and Antarctic
Oscillation (AAO). The results show that the models can well simulate the spatial distribution of AO with better results in
winter than in spring. In the troposphere in spring, the simulation of AO on the whole is still relatively good with a comparatively
high correlation with the NCEP/NCAR reanalysis. The models can also well reproduce the spatial distribution of AAO throughout
the year at all levels of the troposphere, and the spatial simulation is better at 850 hPa than at the surface. Although the
simulation is better in winter than in other seasons, the seasonal variation is not so significant and the differences among
different models are relatively small. In addition, the capability of the models for “predicting” the AO and the AAO index
time series is limited, because only a few models can capture their observed interannual variability at the 95% significance
level. |
| |
Keywords: | Arctic Oscillation (AO) Antarctic Oscillation (AAO) EOF spatial mode time series |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《Acta Meteorologica Sinica》浏览原始摘要信息 |
|
点击此处可从《Acta Meteorologica Sinica》下载全文 |
|