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Hi Martin, I do not have much experience with GGL90 but it is used by the ECCO v4 set-up (your second reference)
<div class="">and also for the llc270 solution: <a href="https://github.com/MITgcm-contrib/llc_hires/tree/master/llc_270" class="">https://github.com/MITgcm-contrib/llc_hires/tree/master/llc_270</a>
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<div class="">In what ways does your set-up differ from ECCO v4?</div>
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<div class="">Dimitris<br class="">
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<div class="">On Dec 10, 2021, at 4:18 AM, Martin Losch <<a href="mailto:Martin.Losch@awi.de" class="">Martin.Losch@awi.de</a>> wrote:</div>
<br class="Apple-interchange-newline">
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<div class="">Hi there,<br class="">
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I am trying to use pkg ggl90 in a global llc90 simulation and I am getting a lot (too much) deep mixing around Antarctica and (consequently?) grid scale patterns in velocity with some settings that I pulled from one of the verification experiments (global_ocean.90x40x15/input.idemix,
but I am not using idemix). I assume that this is related to the mxlMaxFlag (=2 in my case), but also maybe to some other settings. When I use KPP instead, things look normal.<br class="">
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My experience with ggl90 is limited, so I could use some advice on what are the “best practice” choices for this package, in particular for the mxlMaxFlag.<br class="">
I tried both ALLOW_GGL90_HORIZDIFF and ALLOW_GGL90_SMOOTH, both do some horizontal smoothing, unfortunately without success.<br class="">
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Thanks in advance,<br class="">
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Martin<br class="">
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PS. My other reference for llc90 runs: <<a href="https://github.com/ECCO-GROUP/ECCO-v4-Configurations/blob/master/ECCOv4%20Release%204/namelist/data.ggl90" class="">https://github.com/ECCO-GROUP/ECCO-v4-Configurations/blob/master/ECCOv4%20Release%204/namelist/data.ggl90</a>><br class="">
also has mxlMaxFlag=2,<br class="">
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