Simulation of systematic error effects and their reduction in a simple model of the atmosphere

Abstract

The general question considered in this study is: To what extent does the maintenance of a correctly simulated quasi-stationary flow in a model influence the simulation of the transient part of the flow? and, in particular, the question: To what extent does the existence of systematic errors influence the growth of random errors? As an initial approach toward addressing this question, a simple model is used to generate a sequence of realizations. The main result of this paper is that, for this model, the recurrent corrections are also able to decrease the growth of the random error substantially, which indicates that the transient part of the flow is quite sensitive to the accuracy with which the quasi-stationary flow is simulated. -from Authors