E3SM-Project / E3SM-Project/E3SM
Sea ice to ocean dust fluxes can't be negative
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@njeffery is already working on this.
Since Jan 14, 2026.
BGC
Icepack
MPAS-seaice
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- Fortran
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Description
Small round-off level values of sea ice bgc are zeroed and the fluxes (positive or negative) sent to the ocean. For most bgc fields, fluxes can be positive or negative and these small values improve conservation.
With our new implementation of coupled atm-ice-dust fluxes to the ocean, this is a problem. An easy fix is to make sure that only positive round-off bgc fluxes are sent to the ocean.
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