Comments on 'Current GCMs' unrealistic negative feedback in the Artic'
In contrast to prior studies showing a positive lapse-rate feedback associated with the Arctic inversion, Boe 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 fro...
| Published in: | Journal of Climate |
|---|---|
| Main Authors: | , |
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/11858/00-001M-0000-0014-654E-D http://hdl.handle.net/11858/00-001M-0000-0014-6550-5 |
| Summary: | In contrast to prior studies showing a positive lapse-rate feedback associated with the Arctic inversion, Boe 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. |
|---|