Incorporation and Comparative Evaluation of a Non-convective CloudParameterization Scheme in the Naval Research Laboratory West Coast Mesoscale Weather Prediction Model

摘要

This study describes the incorporation of the Sundqvist et al. (1989) explicitnon-convective cloud liquid water scheme into the Naval Research Laboratory (NRL) limited area dynamical weather prediction model. Comparisons were made between model runs with the non-convective cloud water scheme and those without the scheme to evaluate mesoscale wind pattern, longwave radiation, temperature, and cloud simulations over the U.S. West Coast for the time period 0000 UTC 02 May 1990 to 1200 UTC 03 May 1990. The most significant improvement in the updated model was the more physically realistic horizontal and vertical non-convective cloud structures produced by the cloud liquid water fields.