• Open Access

Surface air temperature variability in global climate models

Authors

  • Richard Davy,

    Corresponding author
    1. Nansen Environmental and Remote Sensing Centre, Centre for Climate Dynamics (SKD), Bergen, Norway
    • Correspondence to: Richard Davy, Nansen Environmental and Remote Sensing Centre, Centre for Climate Dynamics (SKD), Thormøhlensgt. 47, 5006 Bergen, Norway.

      E-mail: richard.davy@nersc.no

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  • Igor Esau

    1. Nansen Environmental and Remote Sensing Centre, Centre for Climate Dynamics (SKD), Bergen, Norway
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Abstract

New results from the Coupled Model Intercomparison Project phase 5 (CMIP5) and multiple global reanalysis datasets are used to investigate the relationship between the mean and standard deviation (SD) in the surface air temperature (SAT) at intra- and inter-annual timescales. A combination of a land–sea mask and orographic filter was used to investigate the geographic region with the strongest correlation and in all cases this was found to be for low-lying over-land locations. This result is consistent with the expectation that differences in the effective heat capacity of the atmosphere are an important factor in determining the SAT response to forcing.

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