Numerical Model of the Northwest European Continental Shelf on the Cray Y-Mp2e

摘要

A numerical model for the shallow water equations in polar coordinates wasapplied to the northwest European continental shelf. Both a two dimensional and a three dimensional model of the continental shelf was investigated. A simulation was carried out for the period of 9-12 Feb. 1989. The time splitting method used consists of two stages and is unconditionally stable; moreover, it can fully exploit vector and parallel facilities of supercomputers. Three dimensional shallow water models require a great computational effort and it is therefore necessary to use such fast computers. In a previous paper the same continental shelf problem was examined. The numerical results are in good agreement with each other. It appears that the amplitude and phase errors are small. The numerical experiments are carried out on the one processor Cray Y-MP2E. This superconductor is used for the simulation of large scale models of rivers and seas in the Netherlands.