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New Mesh: SOwISC12to30E3r3 #807

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merged 7 commits into from
Sep 20, 2024
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@xylar xylar commented Mar 31, 2024

Long name: SOwISC12to30kmL80E3SMv3r3

This version of the Southern Ocean Regionally Refined Mesh (SORRM) has resolution that is:

  • 12 km resolution around Antarctica
  • 30 km elsewhere
    It is intended to be similar to the Icos30 mesh except in the Southern Ocean and around Antarctica.

This mesh differs from r2 in #753 in that:

Mesh, initial condition, dynamic adjustment and files for E3SM are on Chrysalis at:

/lcrc/group/e3sm/ac.xylar/compass_1.4/chrysalis/e3smv3-meshes/sowisc12to30e3r3

Checklist

  • Document (in a comment titled Testing in this PR) any testing that was used to verify the changes

@xylar xylar added new mesh An E3SM mesh for special review ocean in progress This PR is not ready for review or merging sea ice labels Mar 31, 2024
@xylar xylar self-assigned this Mar 31, 2024
@xylar xylar force-pushed the create-sowisc12to30e3r3 branch 2 times, most recently from 308163b to 467e79d Compare March 31, 2024 15:50
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xylar commented Apr 3, 2024

We will switch to 80 levels

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xylar commented Apr 3, 2024

Probably sticking with 12 km highest res, but up for further discussion.

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xylar commented Apr 3, 2024

@cbegeman and I discussed switching to having landIcePressure be supplied from observations and ssh be adjusted to be dynamically consistent. (At the moment, Compass does the opposite.) This would be more consistent with plans for MALI coupling in the near future.

@xylar xylar force-pushed the create-sowisc12to30e3r3 branch from fd88a0b to 998eb93 Compare April 10, 2024 14:16
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xylar commented Apr 10, 2024

My preliminary testing shows that the new ssh adjustment technique from #813 works just fine and converges sufficiently in 4 iterations (change of about 10 cm). So I think this is ready to include in the next version of the mesh.

@xylar xylar force-pushed the create-sowisc12to30e3r3 branch 4 times, most recently from 751ef24 to cac9b45 Compare May 9, 2024 18:20
@xylar xylar mentioned this pull request Jun 10, 2024
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@xylar xylar force-pushed the create-sowisc12to30e3r3 branch from 7c06392 to 22fd694 Compare June 10, 2024 09:14
@xylar xylar mentioned this pull request Jun 10, 2024
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@xylar xylar force-pushed the create-sowisc12to30e3r3 branch 2 times, most recently from 0bb6e5b to 471964c Compare June 10, 2024 14:49
@xylar xylar force-pushed the create-sowisc12to30e3r3 branch from 471964c to f6b87a4 Compare June 12, 2024 11:53
@xylar xylar force-pushed the create-sowisc12to30e3r3 branch from f6b87a4 to baf9ba0 Compare July 6, 2024 06:28
@xylar xylar added E3SM PR finished and removed in progress This PR is not ready for review or merging E3SM PR required labels Jul 6, 2024
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xylar commented Jul 11, 2024

Here are the figures from the initial_state step, showing the water-column thickness > 10 m in both the open ocean and in cavities:

initial_state
vertical_grid

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xylar commented Aug 1, 2024

Needs E3SM-Project/E3SM#6535

xylar added 7 commits August 29, 2024 08:24
Switch SO12to60 to SO12to30 with a base resolution that is now
uniformly 30 km.
When we plot histograms of the initial condition, now plot
histograms of the water-column thickness in the open ocean
and in cavities.
In cavities, we thicken the water column to make sure it has the
minimum thickness.  The hope is that this makes the vertical
coorinate converge more quickly and smoothly to its final result.
@xylar xylar force-pushed the create-sowisc12to30e3r3 branch from 36e3c90 to 3412c81 Compare August 29, 2024 13:25
@xylar xylar merged commit 1c39854 into MPAS-Dev:main Sep 20, 2024
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@xylar xylar deleted the create-sowisc12to30e3r3 branch September 20, 2024 18:11
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