How to calculate the isopycnal and diapycnal flux?

General scientific issues regarding ROMS

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yourgod_mwt_cn
Posts: 6
Joined: Wed Jun 18, 2014 12:50 pm
Location: Second Institute of Oceanography, NMR, China

How to calculate the isopycnal and diapycnal flux?

#1 Unread post by yourgod_mwt_cn »

Hi folks
Do you have any idea to calculate isopycnal and diapycnal fluxes from the ROMS output? I know how to calculate the lateral and vertical flexes. But I need to decompose the fluxes to isopycnal and diapycnal.

taowangouc
Posts: 3
Joined: Wed Nov 17, 2021 10:28 pm
Location: Ocean University of China

Re: How to calculate the isopycnal and diapycnal flux?

#2 Unread post by taowangouc »

Hi,
As for the isopycnal flux, you could divide one section into a few density classes and calculate the flux across each class. As for the diapycnal flux, there are two ways: one is through the control volume method, and the other is through -d(w's')/ds. The detailed derivations are described in Wang et al. (2017JPO) "Total Exchange Flow, Entrainment, and Diffusive Salt Flux in Estuaries".
--Tao Wang
Ocean University of China

yourgod_mwt_cn
Posts: 6
Joined: Wed Jun 18, 2014 12:50 pm
Location: Second Institute of Oceanography, NMR, China

Re: How to calculate the isopycnal and diapycnal flux?

#3 Unread post by yourgod_mwt_cn »

Hi Tao,
Thank you very much. I will read your paper and contact you.
Wentao Ma
taowangouc wrote: Fri Dec 30, 2022 3:41 am Hi,
As for the isopycnal flux, you could divide one section into a few density classes and calculate the flux across each class. As for the diapycnal flux, there are two ways: one is through the control volume method, and the other is through -d(w's')/ds. The detailed derivations are described in Wang et al. (2017JPO) "Total Exchange Flow, Entrainment, and Diffusive Salt Flux in Estuaries".
--Tao Wang
Ocean University of China

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