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Randall, D.A., Cess, R.D., Blanchet, J.P., Chalita, S., Colman, R., Dazlich, D.A., Del Genio, A.D., Keup, E., Lacis, A., Le Treut, H., Liang, X.-Z., McAvaney, B.J., Mahfouf, J.F., Meleshko, V.P., Morcrette, J.-J., Norris, P.M., Potter, G.L., Rikus, L., Roeckner, E., Royer, J.F., Schlese, U., Sheinin, D.A., Sokolov, A.P., Taylor, K.E., Wetherald, R.T., Yagai, I. and Zhang, M.-H. (1994). Analysis of snow feedbacks in 14 general circulation models. Journal of Geophysical Research 99: doi: 10.1029/94JD01633. issn: 0148-0227. |
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Snow feedbacks produced by 14 atmospheric general circulation models have been analyzed through idealized numerical experiments. Included in the analysis is an investigation of the surface energy budgets of the models. Negative or weak positive snow feedbacks occurred in some of the models, while others produced strong positive snow feedbacks. These feedbacks are due not only to melting snow, but also to increases in boundary temperature, changes in air temperature, changes in water vapor, and changes in cloudiness. As a result, the net response of each model is quite complex. We analyze in detail the responses of one model with a strong positive snow feedback and another with a weak negative snow feedback. Some of the models include a temperature dependence of the snow albedo, and this has significantly affected the results. ¿ American Geophysical Union 1994 |
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Keywords
Hydrology, Snow and ice, Meteorology and Atmospheric Dynamics, Climatology, Meteorology and Atmospheric Dynamics, General circulation, Meteorology and Atmospheric Dynamics, Radiative processes |
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Publisher
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