Conservation of properties in a free-surface model

  title={Conservation of properties in a free-surface model},
  author={J Campin and Alistair Adcroft and Chris Hill and John Marshall},
In height coordinate ocean models, natural conservation of tracers (temperature, salinity or any passive tracer) requires that the thickness of the surface cell varies with the free-surface displacement, leading to a non-linear free-surface formulation (NLFS). However, NLFS does not guarantee exact conservation unless special care is taken in the implementation, and in particular the time stepping scheme, as pointed out by Griffies et al. (Monthly Weather Rev. 129 (2001) 1081). This paper… CONTINUE READING
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