Optimally choosing small ensemble members to produce robust climate simulations

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Abstract
This study examines the subset climate model ensemble size required to reproduce certain statistical characteristics from a full ensemble. The ensemble characteristics examined are the root mean square error, the ensemble mean and standard deviation. Subset ensembles are created using measures that consider the simulation performance alone or include a measure of simulation independence relative to other ensemble members. It is found that the independence measure is able to identify smaller subset ensembles that retain the desired full ensemble characteristics than either of the performance based measures. It is suggested that model independence be considered when choosing ensemble subsets or creating new ensembles.
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Author(s)
Evans, Jason
Ji, Fei
Abramowitz, Gab
Ekstrom, Marie
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Publication Year
2013
Resource Type
Journal Article
Degree Type
UNSW Faculty
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