Improvement of the GEOS-5 AGCM upon updating the air-sea roughness parameterization

C. I. Garfinkel*, A. M. Molod, L. D. Oman, I. S. Song

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


The impact of an air-sea roughness parameterization over the ocean that more closely matches recent observations of air-sea exchange is examined in the NASA Goddard Earth Observing System, version 5 (GEOS-5) atmospheric general circulation model. Surface wind biases in the GEOS-5 AGCM are decreased by up to 1.2m/s. The new parameterization also has implications aloft as improvements extend into the stratosphere. Many other GCMs (both for operational weather forecasting and climate) use a similar class of parameterization for their air-sea roughness scheme. We therefore expect that results from GEOS-5 are relevant to other models as well.

Original languageAmerican English
Article numberL18702
JournalGeophysical Research Letters
Issue number18
StatePublished - 28 Sep 2011
Externally publishedYes


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