[MITgcm-support] Inconsistent freshwater fluxes in/out of ocean+seaice

[Katherine Quinn]

Hi all,

I've noticed an inconsistency in the combined ocean and seaice 
freshwater mass variations when calculated two different ways (ignoring 
constant offsets).  The first method is sIceLoad (mass load of seaice) 
plus the cumulative in time sum of oceFWflx (flux in/out of ocean).  The 
second method is the cumulative in time sum of SIatmFW (flux in/out of 
ocean+seaice).

I've done these calculations using the diagnostic outputs of the latest 
MIT ECCO run (version 4, rev 4, iteration 10).  The seasonal cycle 
amplitudes and phases are off.  FYI, these are spatial averages (i.e. 
total mass) so lateral advection is not an issue.

Any insights appreciated.

cheers, Katy

-- 
Katherine J. Quinn
Atmospheric and Environmental Research         voice: 781-761-2234
131 Hartwell Avenue                              fax: 781-761-2299
Lexington, MA  02421-3126                     e-mail: kquinn at aer.com