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Next: 2.16.1 Time-stepping of tracers: Up: 2. Discretization and Algorithm Previous: 2.15.8 Vertical dissipation   Contents

2.16 Tracer equations

The basic discretization used for the tracer equations is the second order piece-wise constant finite volume form of the forced advection-diffusion equations. There are many alternatives to second order method for advection and alternative parameterizations for the sub-grid scale processes. The Gent-McWilliams eddy parameterization, KPP mixing scheme and PV flux parameterization are all dealt with in separate sections. The basic discretization of the advection-diffusion part of the tracer equations and the various advection schemes will be described here.


Copyright 2006 Massachusetts Institute of Technology Last update 2018-01-23