Influence of water vapour and permanent gases on the atmospheric optical depths and transmittance
نویسنده
چکیده
= jlhe influence of the atmospheric-state on the extinction of direct solar radiation has been studied by using a four layer atmospheric model. Simple analytical formulae are established for the spectral optical depths of permanent gases and water vapour. These formulae use the ground level valuer of air pressure, temperature and relative humidity. An additional parameter, related to thi vertical distribution of the humidity content, is used for a better estimation if
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