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タイトルCloud/climate sensitivity experiments
本文(外部サイト)http://hdl.handle.net/2060/19830013438
著者(英)Vallis, G. K.; Remer, L.; Roads, J. O.
著者所属(英)California Univ.
発行日1982-01-01
言語eng
内容記述A study of the relationships between large-scale cloud fields and large scale circulation patterns is presented. The basic tool is a multi-level numerical model comprising conservation equations for temperature, water vapor and cloud water and appropriate parameterizations for evaporation, condensation, precipitation and radiative feedbacks. Incorporating an equation for cloud water in a large-scale model is somewhat novel and allows the formation and advection of clouds to be treated explicitly. The model is run on a two-dimensional, vertical-horizontal grid with constant winds. It is shown that cloud cover increases with decreased eddy vertical velocity, decreased horizontal advection, decreased atmospheric temperature, increased surface temperature, and decreased precipitation efficiency. The cloud field is found to be well correlated with the relative humidity field except at the highest levels. When radiative feedbacks are incorporated and the temperature increased by increasing CO2 content, cloud amounts decrease at upper-levels or equivalently cloud top height falls. This reduces the temperature response, especially at upper levels, compared with an experiment in which cloud cover is fixed.
NASA分類METEOROLOGY AND CLIMATOLOGY
レポートNO83N21709
NAS 1.26:170096
NASA-CR-170096
権利No Copyright
URIhttps://repository.exst.jaxa.jp/dspace/handle/a-is/163009


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