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Radiative characteristics of the system 'broken cloudiness-underlying surface'

机译:系统“碎浊表面”的辐射特征

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Abstract: Solar radiation having been absorbed by the atmosphere and underlying surface and then being transformed into other forms of energy regulates all the dynamic processes occurring in the Earth's climate system. The clouds covering a considerable portion of the globe represent the major modulator of radiation energetics of the climatic system. Cloud cover as being subjected to strong variations in its forms and in the space is the major contributor to the dynamics of the radiation regime and brightness fields of the system. In this connection, one of the most important problems in the theory of radiative transfer lies in the study of the effects associated with the extreme spatial variability of clouds as well as in the construction of adequate parameterization schemes of radiation balance of the system `atmosphere-underlying surface' in the numerical models of weather forecast and climate. On the basis of the theory of radiative transfer in the statistically homogeneous cloud fields with stochastic geometry and deterministic optical parameters inside the individual clouds (broken clouds) we intended to evaluate the sensitivity of the mean spectral fluxes of visible solar radiation to the variations in such characteristics as (1) cloud drop size distribution function; and (2) optical parameters of atmospheric aerosol being contained both inside the clouds (as condensation nuclei) and outside them. !9
机译:摘要:太阳辐射已被大气和下层表面吸收,然后转化为其他形式的能量,从而调节了地球气候系统中发生的所有动态过程。覆盖地球相当一部分的云代表了气候系统辐射能的主要调制器。云层的形式和空间会发生很大变化,这是辐射状态和系统亮度场动态变化的主要因素。在这方面,辐射传输理论中最重要的问题之一是研究与云的极端空间变异性有关的影响以及构建“大气-大气”系统辐射平衡的适当参数化方案。天气预报和气候数值模型中的“底层表面”。根据辐射均匀性的理论,在统计上均匀的云场中,具有随机的几何形状和确定的单个云(破碎云)内的光学参数,我们打算评估可见太阳辐射的平均光谱通量对这种变化的敏感性。特征为(1)云滴大小分布函数; (2)大气气溶胶的光学参数同时包含在云内部(作为凝结核)和云外部。 !9

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