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2019WP/AGRIF-05_jchanut_vert_coord_interp (diff) – NEMO

Changes between Version 1 and Version 2 of 2019WP/AGRIF-05_jchanut_vert_coord_interp

2019-07-10T11:37:58+02:00 (5 years ago)



  • 2019WP/AGRIF-05_jchanut_vert_coord_interp

    v1 v2  
    1212The two-way nesting AGRIF capability will be developed in year 1 to allow each inner nest to use a different vertical coordinate from the model in which it is nested.  
    14 Ticket: #2222 
     14ticket:2222 [[BR]] 
     15Branch: source:/NEMO/branches/2019/dev_r11233_AGRIF-05_jchanut_vert_coord_interp/ [[BR]] 
     17== Development plan 
     19 1. Simplify existing AGRIF code (open boundary routines only - update part unchanged): [[BR]] 
     20 source:/NEMO/branches/2019/dev_r10973_AGRIF-01_jchanut_small_jpi_jpj/ [[BR]] 
     21 ticket:2199 [[BR]] 
     22 wiki:2019WP/AGRIF-01_jchanut_small_jpi_jpj  
     23  - Remove any non purely local update near boundaries, e.g. 3 points velocity filtering near boundaries / upstream advection for tracers for outflows. Target is "specified" open boundaries (this does change the results). 
     24  - Ensure that NEMO-AGRIF handles small (~3x3 points) local mpp sub-domains (the preceding task should enable that more easily - current status is local sub-domains greater than ~10x10 points, e.g. greater than spong layer width).  
     25 2. Check current interpolation of vertical nesting (key_vertical). 
     26  - Ensure that with identical vertical grids, results are bit-for-bit identical (VORTEX). 
     27  - Optimization ? Consider existing PPM interpolation at this stage. 
     28 3. Volume connection with different coordinate systems. [[BR]]  
     29  - Existing code supports only nesting a z-coord model into a z-coord model. Should be more general.  
     30  - Nesting tools have to be updated to allow this. Grenoble's version of Nesting tools (available on NEMO trac) should be the starting point. 
     31 4. Design test cases.  
     32  - One should check how boundary layers react at the domains boundaries (top and bottom): extrapolation methods will matter here.  
     33  - Overflow test case (3D). Internal Wave packet crossing the boundary. 2D upwelling. Others ? 
     34 5. Implement other remapping methods.  
     35  - Could be borrowed from D. Engwirda (MOM6) library.  
     36  - Should be coordinated with Mike Bell who plans to use the package for pressure gradient scheme. 
     37 6. Set up a realistic test case (Denmark strait) in col. with WPX (TBD).  
     38  - How far in the validation should be go ? Not sure this is really part of the WP3. 
    1641== Preview