Articles | Volume 9, issue 11
https://doi.org/10.5194/gmd-9-4097-2016
https://doi.org/10.5194/gmd-9-4097-2016
Model evaluation paper
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17 Nov 2016
Model evaluation paper | Highlight paper |  | 17 Nov 2016

Multi-annual modes in the 20th century temperature variability in reanalyses and CMIP5 models

Heikki Järvinen, Teija Seitola, Johan Silén, and Jouni Räisänen

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This study compares the 20th century multi-annual climate variability modes in reanalysis data sets (ERA-20C and 20CR) and 12 climate model simulations using the randomised multi-channel singular spectrum analysis. The reanalysis data sets are remarkably similar on all timescales, except that the spectral power in ERA-20C is systematically slightly higher than in 20CR. None of the climate models closely reproduce all aspects of the reanalysis spectra, although many aspects are represented well.
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