A higher-order Robert-Asselin type time filter

  title={A higher-order Robert-Asselin type time filter},
  author={Yong Li and Catalin Trenchea},
  journal={J. Comput. Physics},
The Robert-Asselin (RA) time filter combined with leapfrog scheme is widely used in numerical models of weather and climate. It successfully suppresses the spurious computational mode associated with the leapfrog method, but it also weakly dampens the physical mode and degrades the numerical accuracy. The Robert-Asselin-Williams (RAW) time filter is a modification of the RA filter that reduces the undesired numerical damping of RA filter and increases the accuracy. We propose a higher-order RA… CONTINUE READING


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