I think I have been using masking incorrectly in my refined grid (and I think I understand now), but I wanted to make a post to double check and ask a further question.
If we don't want the model to simulate a point, we set the land mask to 0. That can be because there is land there, or it is already being modelled by another grid; but if we want it to be ignored, it should be set to 0. In this image of Espresso's grids (from the ROMS Wiki Page for Nested grids, https://www.myroms.org/wiki/File:Delawa ... e_zoom.png), The colored boxes are where the land mask is 1, and the water is modelled.
- 514px-Delaware_Chesapeake_zoom.png (422.44 KiB) Viewed 112 times
I've been using refined grids, with 1 coarse and 1 fine, and have been having issues with my estuaries. Most of this has been the normal "slope too large" problem, but recently, I had a blowup in the coarse grid, in a location where the fine grid was working well.
Assuming I do change the coarse grid's masking, should I recreate the contact region? I think the contact region generation is independent of the mask, but I am not entirely sure.
Thank you for your time.
-Ben