Difference between revisions of "One way nesting"
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Occasionally, 1 way nesting may be useful; e.g., you don't usually have velocity b.c. at an open boundary. You can effectively use SELFE's 1-way nesting capability to get around this issue. | Occasionally, 1 way nesting may be useful; e.g., you don't usually have velocity b.c. at an open boundary. You can effectively use SELFE's 1-way nesting capability to get around this issue. | ||
| − | You can first run the efficient SELFE 2D in a larger or same grid, and then use the 1-way nesting scripts in the source code bundle (v3.2 and up)to extract results from this run and prepare uv3D.th (if you first run a coarse-grid SELFE 3D baroclinic simulation, you can also prepare salt3D.th and temp3D.th). Then simple use *3D.th to drive the small-domain 3D runs. | + | You can first run the efficient SELFE 2D in a larger or same grid, and then use the 1-way nesting scripts in the source code bundle (v3.2 and up) to extract results from this run and prepare uv3D.th (if you first run a coarse-grid SELFE 3D baroclinic simulation, you can also prepare salt3D.th and temp3D.th). Then simple use *3D.th to drive the small-domain 3D runs. Note that this approach only works if the b.c. does not significantly affect the internal dynamics. |
Revision as of 15:22, 29 September 2012
The need for grid nesting is greatly reduced with unstructured grid models.
Occasionally, 1 way nesting may be useful; e.g., you don't usually have velocity b.c. at an open boundary. You can effectively use SELFE's 1-way nesting capability to get around this issue.
You can first run the efficient SELFE 2D in a larger or same grid, and then use the 1-way nesting scripts in the source code bundle (v3.2 and up) to extract results from this run and prepare uv3D.th (if you first run a coarse-grid SELFE 3D baroclinic simulation, you can also prepare salt3D.th and temp3D.th). Then simple use *3D.th to drive the small-domain 3D runs. Note that this approach only works if the b.c. does not significantly affect the internal dynamics.
