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Wind stress mappatch_uv3d#25

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kieranricardo wants to merge 3 commits into
cmeps1.1.35-xfrom
wind-stress-mappatch_uv3d
Open

Wind stress mappatch_uv3d#25
kieranricardo wants to merge 3 commits into
cmeps1.1.35-xfrom
wind-stress-mappatch_uv3d

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@kieranricardo

@kieranricardo kieranricardo commented Jul 1, 2026

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Description of changes

Use mappatch_uv3d to map the windstress from the atmosphere lat-long grid to the ocn/ice tripolar grid. Interpolating the zonal/meridional components directly causes the components to almost cancel at the north pole, leading to a perpetual near
0 windstress at the north pole. Interpolating the 3D velocities instead fixes this problem.

Plots of magnitude of the average windstress, averaged over 10 days. Comparison of atmosphere windstress, and ocean windstress (from runs using mappatch and mappatch_uv3d). Note the dark spot at the north pole present in the mappatch plot.

Atmosphere grid
image

Ice grid (mappatch)
image

Ice grid (mappatch_uv3d)
image

Addresses ACCESS-NRI/dev_coupling#74

@kieranricardo kieranricardo marked this pull request as ready for review July 1, 2026 07:08
@kieranricardo kieranricardo requested a review from blimlim July 1, 2026 07:09
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