[MITgcm-support] semi-prognostic calculation with MITgcm

[Samar Khatiwala]

Hello,

Has anyone implemented/carried out a 'semi-prognostic' calculation with MITgcm? This is where you replace 
the model density (T/S) in the hydrostatic balance with an externally prescribed field, or a weighted average of the 
externally prescribed and model density field. The tracer equations are left unchanged. 

If someone had done this and can share their model mods with me, that would be fantastic. Any hints on how best to 
implement this would also be welcome. It wasn't entirely obvious which routine(s) to change. Is S/R CALC_PHI_HYD 
the one to change? 

Thanks very much,

Samar