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> Why is a 3D model even necessary? See [0]. PDEs can be solved discreetly in three dimensions on a three-dimensional grid (3D model, sort of). [0]: https://e
by dlivingston 7y ago
> Why is a 3D model even necessary?
See [0]. PDEs can be solved discreetly in three dimensions on a three-dimensional grid (3D model, sort of).
[0]: https://en.wikipedia.org/wiki/Finite_volume_method https://en.wikipedia.org/wiki/Finite_volume_method
- lutorm 7y agoThat doesn't really explain why you need a 3d model, though. If there was no important vertical process, you could get away with not resolving it. However, vertical heat transport is the entire game since the lower atmosphere is opaque to heat.
- dlivingston 7y agoI mean, it does though. The atmosphere is a 3D volume. Parameters that you might be interested in solving for, like advection and convection, are 3D processes. Consequently, you will need a 3D grid to solve the PDEs describing these parameters. EDIT: Ah, I see what you're saying. Yeah, I believe we fundamentally agree and our posts describe the same reasoning in two different ways.