A Shortwave Parameterization Revised to Improve Cloud Absorption

Graeme L. Stephens CSIRO, Division of Atmospheric Research, Aspendale, Victoria, Australia, 3195

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Steven Ackerman Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523

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Eric A. Smith Department of Atmospheric Sciences, Colorado State University, Fort Collins, CO 80523

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Abstract

We present a modification to the parameterization scheme of Stephens which improves on the estimation of shortwave absorption by cloud. In particular, the variation of cloud absorption with solar elevation angle is improved with the modified scheme.

Abstract

We present a modification to the parameterization scheme of Stephens which improves on the estimation of shortwave absorption by cloud. In particular, the variation of cloud absorption with solar elevation angle is improved with the modified scheme.

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