On a derivable formula for long‐wave radiation from clear skies

作者：Wilfried Brutsaert · 发表于：Water Resources Research · 年份：1975 · DOI：10.1029/wr011i005p00742 · 被引用次数：1021 · 研究领域：Meteorological Phenomena and Simulations、Radio Wave Propagation Studies、Atmospheric aerosols and clouds

A derivation is presented for the effective atmospheric emissivity to predict downcoming long‐wave radiation at ground level under a clear sky and for a nearly standard atmosphere. The results are in good agreement with those obtainable with empirical formulae based on water vapor pressure and temperature. However, the proposed formulation has the advantage that its simple functional form is based on physical grounds without the need for empirical parameters from radiation measurements. Also, in contrast to the empirical equations, it may be adjusted in a simple way to reflect changes in climatic and atmospheric conditions.