Exploring multi-model atmospheric GCM ensembles with ANOVA
Exploring multi-model atmospheric GCM ensembles with ANOVA
复制标题
使用 ANOVA 探索多模型大气 GCM 系综
DOI:
10.1007/s00382-008-0372-z
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发表时间:
2008
期刊:
影响因子:
4.6
通讯作者:
Hodson D
中科院分区:
文献类型:
--
作者:
Hodson D
Analysis of variance (ANOVA) is a powerful statistical technique for making inferences about experiments that are influenced by multiple factors. Whilst common in many other scientific fields, its use within the climate community has been limited to date. Here we review the basis for ANOVA and how, in particular, it can be applied to partition the variance in a multi-model ensemble of Atmospheric General Circulation Model simulations. We examine an ensemble of four AGCMs forced with observed twentieth century sea surface temperatures (SST). We show that the dominant contributions to the total variance of seasonal mean sea level pressure arise frombetween-model differences(the bias term) andinternal noise(the noise term). However, which term is most important varies from region to region. Of particular interest is the interaction term, which describes differences between the models in their responses to common SST forcing. The interaction term is found to be largest over the Indian Ocean (in all seasons), and over the subtropical Northwest Pacific in boreal summer. The differences between the model responses in these regions suggest differences in their simulation of atmospheric teleconnections, with potentially important implications, e.g. for seasonal predictions of the South and East Asian Monsoons. Examination of these differences may lead to an understanding of the reasons why models respond differently to common forcing, and ultimately to improvements in the performance of climate models.
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DOI:
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发表时间:
2000
期刊:
影响因子:
--
作者:
F. Zwiers;Xiaolan L. Wang;J. Sheng
通讯作者:
J. Sheng
DOI:
--
发表时间:
2002
期刊:
影响因子:
--
作者:
H. Paeth;A. Hense
通讯作者:
A. Hense
影响因子:
7.5
作者:
J. Houghton;Y. Ding;D. Griggs;M. Noguer;P. Linden;X. Dai;K. Maskell;C. Johnson
通讯作者:
J. Houghton;Y. Ding;D. Griggs;M. Noguer;P. Linden;X. Dai;K. Maskell;C. Johnson
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
M. Rauthe;A. Hense;H. Paeth
通讯作者:
H. Paeth
影响因子:
5.2
作者:
Copsey, Dan;Sutton, Rowan;Knight, Jeff R.
通讯作者:
Knight, Jeff R.