Discussion on Climate Oscillations : CMIP 5 general circulation models versus a semi-empirical harmonic model based on astronomical cycles

@inproceedings{Scafetta2013DiscussionOC,
  title={Discussion on Climate Oscillations : CMIP 5 general circulation models versus a semi-empirical harmonic model based on astronomical cycles},
  author={Nicola Scafetta},
  year={2013}
}
Power spectra of global surface temperature (GST) records (available since 1850) reveal major periodicities at about 9.1, 10–11, 19–22 and 59–62 years. The Coupled Model Intercomparison Project 5 (CMIP5) general circulation models (GCMs) (IPCC AR5 2013) are not able to reconstruct this variability. From 2000 to 2013.5 a GST plateau is observed while the GCMs predicted a warming rate of about 2 °C/century. In contrast, the hypothesis that the climate is regulated by specific natural oscillations… CONTINUE READING

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