Search found 7 matches
- Mon Oct 24, 2016 4:39 pm
- Forum: ROMS Discussion
- Topic: ROMS Nest Boundary problem
- Replies: 4
- Views: 3310
Re: ROMS Nest Boundary problem
Adding #define ONE_WAY to your 'application'.h file where you defined NESTING will limit the nesting to one-way coupling. The will not correct issues associated with poorly defined metrics or inconsistent bathymetry. I suggest it as a means of bypassing this unresolved issue https://www.myroms.org/f...
- Mon Oct 24, 2016 3:07 pm
- Forum: ROMS Discussion
- Topic: ROMS Nest Boundary problem
- Replies: 4
- Views: 3310
Re: ROMS Nest Boundary problem
Your errors look similar to ones I recently encountered while using two-way coupled in deep water. There are a several things that should be checked, including the consistency of the metrics between grids and consistency of the bathymetry. Check the suggestions made to me by John Wilkin in https://w...
- Fri Oct 14, 2016 9:36 pm
- Forum: ROMS Bugs
- Topic: Error in Flux Integrals in Correct_Tracer - two-way nesting
- Replies: 1
- Views: 6460
Error in Flux Integrals in Correct_Tracer - two-way nesting
I've been struggling with a deep water :arrow: two-way nesting issue and after a few false starts I have followed the problem to and into the correct_tracer_tile routine in nesting.F. The fine grid flux integrals in correct_tracer_tile do not properly account for the coarse grid time interval. Corre...
- Wed Sep 21, 2016 2:03 pm
- Forum: ROMS Discussion
- Topic: Difficulty with two-way deep water nested grids
- Replies: 5
- Views: 4321
Re: Difficulty with two-way deep water nested grids - update
I continue to have difficulties with two-way coupled nested grids, but with John Wilkin's guidance have been able to clarify a few things. The inputs are derived from an NCOM run, Atmospheric inputs derived from WRF and Gebco bathymetry. 1. I've confirmed smoothness of bathymetry at and near the nes...
- Wed Sep 07, 2016 6:00 pm
- Forum: ROMS Discussion
- Topic: Difficulty with two-way deep water nested grids
- Replies: 5
- Views: 4321
Re: Difficulty with two-way deep water nested grids
John, Thanks for the suggestions. I'll follow up on them. I believe the code used to interpolate from the the original single domain case to the nested case was based on d_roms2roms.m. I do have a question on the the output file 'fort.300'. What is acceptable error magnitude for mass conservation? T...
- Wed Sep 07, 2016 1:14 pm
- Forum: ROMS Discussion
- Topic: Difficulty with two-way deep water nested grids
- Replies: 5
- Views: 4321
Re: Difficulty with two-way deep water nested grids
Thanks for the reply. I thought about the initial transient. I ran the synchronized case as a way of discriminating between the IC issue and a possible time stepping issue associated with 2-way coupling in deep water. If it was an initial conditions problem, I believe the waves should have appeared ...
- Tue Sep 06, 2016 9:11 pm
- Forum: ROMS Discussion
- Topic: Difficulty with two-way deep water nested grids
- Replies: 5
- Views: 4321
Difficulty with two-way deep water nested grids
We are trying to run ROMS in a well resolved nested deep water (h ~ 5000m) configuration and have encountered a difficulty. We are using three nested grids at a grid ratio of 1:3. On the coarsest grid, dx ~ dy ~ 800m while at the finest dx ~ dy ~ 89m. The initial condition is derived from NCOM and t...