MicroNut accumulation

ilaria.s...@utas.edu.au

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Mar 30, 2026, 10:51:12 PMMar 30

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Hello Atlantis community!

I am working on a sensitivity analysis for my model. I am encountering issues with certain polygons getting very high values of MicroNut (iron), mostly at depth, and some polygons getting incredibly high values at surface as well. I have turned off/removed all inputs I could find (in functional groups, forcing files, the initial conditions, atmospheric input...) and I still get massively high microNut values. Has anyone encountered this kind of problem before?

Cheers,

Ilaria

Fulton, Beth (Environment, Hobart)

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Mar 31, 2026, 6:03:52 AMMar 31

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OFFICIAL

G’day

Is it coming by advection from boundary boxes?

Beth

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ilaria.s...@utas.edu.au

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Apr 2, 2026, 1:31:15 AMApr 2

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Hi Beth,

Thank you for the troubleshooting suggestions - I noticed my Redfield ratio for the MicroNut component was off. All is back to sensible values!