The UVic earth system climate model: Model description, climatology, and applications to past, present and future climates

Autor: Edward C. Wiebe, Amy MacFadyen, Andrew J. Weaver, Andreas Schmittner, P. B. Duffy, Augustus F. Fanning, H. Damon Matthews, Tracy Ewen, Cecilia M. Bitz, Michael Eby, Marika M. Holland, Huaxiao Wang, Masakazu Yoshimori, Oleg A. Saenko, Katrin J. Meissner
Rok vydání: 2001
Předmět:
Zdroj: Atmosphere-Ocean. 39:361-428
ISSN: 1480-9214
0705-5900
Popis: A new earth system climate model of intermediate complexity has been developed and its climatology compared to observations. The UVic Earth System Climate Model consists of a three‐dimensional ocean general circulation model coupled to a thermodynamic/dynamic sea‐ice model, an energy‐moisture balance atmospheric model with dynamical feedbacks, and a thermomechanical land‐ice model. In order to keep the model computationally efficient a reduced complexity atmosphere model is used. Atmospheric heat and freshwater transports are parametrized through Fickian diffusion, and precipitation is assumed to occur when the relative humidity is greater than 85%. Moisture transport can also be accomplished through advection if desired. Precipitation over land is assumed to return instantaneously to the ocean via one of 33 observed river drainage basins. Ice and snow albedo feedbacks are included in the coupled model by locally increasing the prescribed latitudinal profile of the planetary albedo. The atmospher...
Databáze: OpenAIRE