[MITgcm-support] Hydrostatic pressure in LLC runs

[Xiaozhou Ruan]

Dear MITgcm users,

I have been working on closing the momentum budget in LLC4320. Since I couldn’t locate the pressure output, I opted to calculate the hydrostatic pressure myself. I first used the densjmd95 routine to compute the in-situ density, then vertically integrated the density (multiplied by g) from the sea surface downward. However, the momentum budget doesn’t quite close. The pressure gradient field is very noisy, with many depth-invariant vertical stripes. Has anyone had experience closing the momentum budget with self-calculated hydrostatic pressure, or might be able to suggest any steps I may have missed in the pressure calculation? Thank you very much!

Best,
Xiaozhou

--
Xiaozhou Ruan
“shaw-joe roo-ahn”
Assistant Professor
Department of Earth & Environment
Boston University
web:   https://xiaozhour.github.io/

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