Range of application of the scattering theory within the multicomponent turbid media of the cloud atmosphere is the reason for anomalous absorption and incorrectness of climate prediction
Contemporary climatic models predicting different scenarios of climate formation are examined and educated on examples of known parameters of the climatic system of the last century. The atmospheric aerosols' impact is taken into account as adjusting factor. The cloud influence on increasing absorption of the solar radiation in the atmosphere ('anomalous absorption' in the short wavelength ranges) is not considered in the climatic simulations. Observations of the shortwave solar radiation in the Earth's atmosphere demonstrate increasing radiation absorption under cloudy conditions compared with the clear atmosphere. The difference between the spectral dependence of the cloud optical thickness together with the value of the single scattering albedo, retrieved from airborne, satellite and ground-based radiation observations, and results of model calculations with applying scattering theory is revealed. A possible physical explanation is proposed in this paper. An incorrect account of the absorption of solar radiation in the cloudy atmosphere during the process of refining a climatic model attaches too much weight of the greenhouse gases yield on atmospheric energy balance in simulation. As a result, the influence of greenhouse gases on formation of the temperature field appears overestimated.
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Document Type: Research Article
Affiliations: Research Center for Ecological Safety Russian Academy of Sciences, St. Petersburg, 197110, Russia
Publication date: May 1, 2008