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Comments on 'Current GCMs' Unrealistic Negative Feedback in the Arctic'

Pithan, F. and Mauritsen, T. (2013) Comments on 'Current GCMs' Unrealistic Negative Feedback in the Arctic'. Journal of Climate, 26 (19). pp. 7783-7788. ISSN 1520-0442

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To link to this item DOI: 10.1175/JCLI-D-12-00331.1

Abstract/Summary

In contrast to prior studies showing a positive lapse-rate feedback associated with the Arctic inversion, Boé et al. reported that strong present-day Arctic temperature inversions are associated with stronger negative longwave feedbacks and thus reduced Arctic amplification in the model ensemble from phase 3 of the Coupled Model Intercomparison Project (CMIP3). A permutation test reveals that the relation between longwave feedbacks and inversion strength is an artifact of statistical self-correlation and that shortwave feedbacks have a stronger correlation with intermodel spread. The present comment concludes that the conventional understanding of a positive lapse-rate feedback associated with the Arctic inversion is consistent with the CMIP3 model ensemble.

Item Type:Article
Refereed:Yes
Divisions:No Reading authors. Back catalogue items
ID Code:39341
Publisher:American Meteorological Society

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