Divergent initialization experiments using a global primitive equation spectral model

Abstract

An initialization of a spectral formulation of the primi­tive equations using a diagnostic divergence is tested for a global model. The initial conditions are generated from a developing baroclinically unstable wave. A semi-implicit time scheme is developed and tested along with the usual explicit method during the course of the experiments. Results show a relatively small effect of a divergent initialization on the ensuing integrations. The semi-implicit method shows a ten­dency to smooth out high frequency oscillations in local ten­dencies.http://archive.org/details/divergentinitial00lubeLieutenant, United States NavyApproved for public release; distribution is unlimited