GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis
Guo, Zhichang; Dirmeyer, Paul A.; Koster, Randal D.; Bonan, Gordon; Chan, Edmond; Cox, Peter; Gordon, C. T.; Kanae, Shinjiro; Kowalczyk, Eva; Lawrence, David; Liu, Ping; Lu, Chen-Hsuan; Malyshev, Sergey; McAveney, Bryant; McGregory, J. L.; Mitchell, Ken; Mocko, David; Oki, Taikan; Oleson, Keith W.; Pitman, Andrew; Sud, Y. C.; Taylor, Christopher M.; Verseghy, Diana; Vasic, Ratko; Xue, Yongkang; Yamada, Tomohito. 2006 GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis. Journal of Hydrometeorology, 7. 611-625.Full text not available from this repository.
The 12 weather and climate models participating in the Global Land–Atmosphere Coupling Experiment (GLACE) show both a wide variation in the strength of land–atmosphere coupling and some intriguing commonalities. In this paper, the causes of variations in coupling strength—both the geographic variations within a given model and the model-to-model differences—are addressed. The ability of soil moisture to affect precipitation is examined in two stages, namely, the ability of the soil moisture to affect evaporation, and the ability of evaporation to affect precipitation. Most of the differences between the models and within a given model are found to be associated with the first stage—an evaporation rate that varies strongly and consistently with soil moisture tends to lead to a higher coupling strength. The first-stage differences reflect identifiable differences in model parameterization and model climate. Intermodel differences in the evaporation–precipitation connection, however, also play a key role.
|Item Type:||Publication - Article|
|Programmes:||CEH Programmes pre-2009 publications > Biogeochemistry > CC01B Land-surface Feedbacks in the Climate System|
|CEH Sections:||_ Process Hydrology|
|NORA Subject Terms:||Meteorology and Climatology
Ecology and Environment
|Date made live:||01 May 2008 10:20|
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