[Stochastic radiation transfer]. Final report

The original proposal was to produce a new cloud parameterization based upon an innovative stochastic radiative transfer techniques, in which the parameters will be validated by ARM data. The authors intended to construct a subgrid model for use in GCMs that would account for the effects of unresolved clouds on radiation flow, and they pointed out that scattering could be accommodated in this approach. They were to use ARM site data on cloud morphology and cloud/radiative energy balance in developing the new model. The data was to be supplemented by satellite data since they knew the projected rich set of ARM data would not be available immediately. The new technique was to be first checked out by incorporation into the Scripps single-column model, and after a period of refinement and proving itself was to be incorporated in a version of the CCM code. Among the minor goals was the use of these studies to provide guidance to ARM program managers and experimenters and to engender intercommunity scientific collaboration between private industry, the DOE/ARM and academia