Numerical Study on the Influence of Difference Interpolation Methods on the Stability of Coupled System Model

In this paper,the influence of different interpolation methods on the stability of climate system model NCAR CCSM2 has been studied.The results of idealized experiment show that the stability of the conservative interpolation method is better than that of the bilinear one.While the air-sea interface flux calculated by two kinds of interpolation methods is far less than that obtained by the idealized experiment because of the complicated air-sea interaction.The long-term numerical integration experiments point out that the conservative interpolation method is in favor of the conservation of the physical quantities for the first ten-year,but the differences between these two interpolation methods are not remarkable with the increment of integration time.