SPLIT SEMI-IMPLICIT INTEGRATION OF TROPICAL LIMITED AREA MULTI-LEVEL PRIMITIVE EQUATION MODEL

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  • A tropical limited area multi-level primitive equation model,in which the time integral is performed with a split semi-implicit scheme,is presented.The operating time is shortened to one-third of the time the explicit scheme needs.The results of operational experiments show that the model is stable in computation and capable of producing satisfactory forecast for tropical systems.Besides synoptic reports,data derived from other sources are used so as to improve the forecast,especially over tropical oceans where conventional data are scarce.
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