Simulated tropical convection

Abstract

A two-dimensional, finite-element, nonhydrostatic, primitive equation model developed by Dr. K. V. Ooyama of NOAA/AOML/HRD is described in detail. Numerous unpublished experiments oriented toward the evaluation of numerical constructs are described in brief. The focus of discussion is the maritime tropical squall line system. A detailed review of previous observational and numerical modeling efforts is included and provides a basis for a detailed qualitative evaluation of model results through other unpublished, and new, simulations. These analyses conclude with a favorable assessment of Dr. Ooyama's model with respect to the proper simulation of observed and previously modeled tropical squall line system development and structure. The author's participation in SCSMEX provided numerous data with which the model was initialized for further experiments involving the examination of cumulus growth and decay on smaller scales, and at higher resolutions, than the previous squall line system simulations.