Computational Cost for RDC Parameterization

First uploaded on 2022/07/30
Last updated on 2024/11/14
Copyright(C)2022-2024 jos <jos@kaleidoscheme.com> All rights reserved.

Radiatively Driven Circulation (RDC) parameterization requires solving a boundary value problem, which is an iterative computation by nature. But since it is a problem in a horizontal two-dimensional plane for each altitude, the computational complexity per calculation is not so large that it is not unrealistic from a computational cost point of view. In addition to this, the RDC parameterization calculation only needs to be performed for each time step Δt_R much longer than Δt required by the dynamics calculations (but short enough to resolve the time scale over which the radiation field changes), so the frequency of calculations can be reduced and the overall computational cost should not be too burdensome.