[MITgcm-support] Track freshwater flow from sea ice melting

[Yilang Xu]

Hi all,

Just follow up on my previous question as I have proceeded from there. The linkage between EmPmR and passive tracer concentration can be formed by modifying pkg/ptracers/ptracers_forcing_surf.F and prescribing PTRACERS_EvPrRn in data.ptracers.
However, EmPmR is the net freshwater flux, and I need only the contribution of sea ice to freshwater flux. So I look into pkg/seaice/seaice_growth.F, and find that EmPmR is modified there by several terms related to sea ice.

My question is, is pkg/seaice/seaice_growth.F the only place where EmPmR gets modified and later transferred to pkg/ptracers/ptracers_forcing_surf.F? if that is the case, I can take some variables in seaice_growth.F and use them in ptracers_forcing_surf.F.

Thanks,
Yilang


From: Yilang Xu <yxu at whoi.edu>
Date: Friday, April 8, 2022 at 13:23:20
To: "MITgcm-support at mitgcm.org" <MITgcm-support at mitgcm.org>
Cc: Yilang Xu <yxu at whoi.edu>
Subject: Track freshwater flow from sea ice melting

Dear MITgcm community,

I am wondering if there is a way to track the trajectory of the freshwater flow exclusively from sea ice melting. Currently the model outputs net surface freshwater flux (oceFWflx) using diagnostics. But I want to track only the contribution from sea ice melting, and try to link it with ptracers package to add a surface source of passive tracers. Appreciate it if anyone could help to point out which sea ice variable to look into.

Thanks,
Yilang

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