Changes between Version 2 and Version 3 of Working Groups/AGRIF/10-03-2017-WGmeeting


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Timestamp:
2017-04-10T10:00:23+02:00 (3 years ago)
Author:
jchanut
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  • Working Groups/AGRIF/10-03-2017-WGmeeting

    v2 v3  
    2727Reminder: Agrif currently supports only a unique, time invariant and geopotential vertical grid. The use of Eulerian S coordinates does not need any change in the code itself but is not considered in the preprocessing tools. Combination of S and z coordinates (enveloping bathymetry) is not possible due to the online computation of the envelope. It has to be performed at the preprocessing stage to ensure masks matching i.e in the nesting tools (see next paragraph). 
    2828 
    29  A. Colombo (LEGI) adapted the nesting tools in order to use s-z coordinates and is testing it in a regional configuration over the Denmark strait. Jérôme has already tested with success the s-z combination with AGRIF over the Gibraltar strait. 
     29Pedro Colombo (Lgge) adapted the nesting tools in order to use s-z coordinates and is testing it in a regional configuration over the Denmark strait. Jérôme has already tested with success the s-z combination with AGRIF over the Gibraltar strait. 
    3030 
    3131Tim is implementing coordinate change among grids. Tests have been performed in the double gyre configuration (hence with a flat bottom and 2 different vertical z grids). From these, vertical (conservative) remapping seems to be ok. The next step is to perform tests in a realistic setup (ORCA2-Aguhlas). 
     
    7272 * Adapting to the upcoming time stepping scheme and coupling at barotropic level. 
    7373 
    74 The group expressed the need to sustain our effort to improve the overall implementation robustness. It is envisioned that a greater flexibility in the grid definition should be part of plans as it already the case in CROCO. One of the outcome could be the design of a multigrid global eddy resolving model at an affordable cost orsystematic refinement in few identified “hot spots” (overflows). To reach that end, it is strongly advised to consider grid refinement as one of the drivers of the kernel structure. 
     74The group expressed the need to sustain our effort to improve the overall implementation robustness. It is envisioned that a greater flexibility in the grid definition should be part of plans as it already the case in CROCO. One of the outcome could be the design of a multi-grid global eddy resolving model at an affordable cost or systematic refinement in few identified “hot spots” (overflows). To reach that end, it is strongly advised to consider grid refinement as one of the drivers of the kernel structure.