Response to Increasing Southern Hemisphere Winds in CCSM4
Gent, P. R., & Danabasoglu, G. (2011). Response to Increasing Southern Hemisphere Winds in CCSM4. Journal Of Climate, 24, 4992-4998. doi:10.1175/JCLI-D-10-05011.1
Results from two perturbation experiments using the Community Climate System Model version 4 where the Southern Hemisphere zonal wind stress is increased are described. It is shown that the ocean response is in accord with experiments using much-higher-resolution ocean models that do not use an e... Show moreResults from two perturbation experiments using the Community Climate System Model version 4 where the Southern Hemisphere zonal wind stress is increased are described. It is shown that the ocean response is in accord with experiments using much-higher-resolution ocean models that do not use an eddy parameterization. The key to obtaining an appropriate response in the coarse-resolution climate model is to specify a variable coefficient in the Gent and McWilliams eddy parameterization, rather than a constant value. This result contrasts with several recent papers that have suggested that coarse-resolution climate models cannot obtain an appropriate response. Show less