[MITgcm-support] How to change advection-difussion equation for only salinity tracer

[Stanislav Martyanov]

Hello!

You can use the ptracers package for this, and add any settling velocity or
corresponding vertical  flux of sediment concentration (Wg*C) in, say,
calc_tendency subroutine.

Kind regards,
Stanislav

ср, 23 мар. 2022 г. в 20:40, JOSE ALFREDO OCEGUEDA SANCHEZ <
jose.oceguedas at alumnos.udg.mx>:

> Hi, I'm trying to simulate a turbidity current for my undergraduate
> thesis, and for that, I'm using salinity, and \beta_{s} to make a
> high-density fluid. I'm using the Third-order direct space-time with flux
> limiting advection scheme for salt and temperature (tempAdvScheme=33,
> saltAdvScheme = 33) but in order to correctly simulate the turbidity
> current, I need to add a constant settling velocity of sediment in the ẑ
> direction. I think that the file I need to change is gad_dst3fl_adv_r.F and
> add the constant settling velocity there, but my question is how to do that
> only for sediment concentration (salt in my case) and not in both tracers
> (temperature and salt).
>
> Thanks in advance for your help.
>
> José Ocegueda
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