runoff scaling module to adjust Antarctic surface runoff#837
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GMHuettner wants to merge 3 commits intomainfrom
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runoff scaling module to adjust Antarctic surface runoff#837GMHuettner wants to merge 3 commits intomainfrom
GMHuettner wants to merge 3 commits intomainfrom
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JanStreffing
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Dec 16, 2025
JanStreffing
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enhancement
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Looking at this again. It seems the cavity default results have changed. Should they have? Should we update the truth, or should the scheme be turned off by default? |
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Module to allow the Antarctic surface runoff to be set to a constant value, multiplied by factor, or set to reference values from provided file(s). Required for experiment where the net runoff freshwater flux between different runs should remain the same.
The module gets initialized (set true/false flag and load reference values) before the first time step. For now the actual scaling happens directly after atmosphere forcing is set, and applies a factor calculated from the surface integrated flux on each runoff node south of -60°, depending on the case set in namelist.config.
Iceberg and/or cavity fluxes should be considered for this, so the actual call of runoff_scaling() will be moved to oce_fluxes() in ice_oce_coupling.F90. Then, depending on the model setup, the reference value can be reduced by the already introduced iceberg/cavity freshwater flux.