[MITgcm-devel] Unrealistic low SST with SEAICE_GROWTH_LEGACY undef

[Menemenlis, Dimitris (3248)]

Martin, I am assuming that the reason that you get such low temperatures with seaice-legacy code is because you do not set
SEAICE_gamma_t_frz independently from SEAICE_gamma_t.  Please confirm.

Note the following comments in SEAICE_PARAMS.h:

C     SEAICE_gamma_t     :: Timescale for melting ice from a warm mixed layer (s),
C                           3d = 259200s is a reasonable value, default=unset
C     SEAICE_gamma_t_frz :: timescale for freezing ice from a cold mixed layer (s),
C                           3h = 10800s is a reasonable value, default=SEAICE_gamma_t

Maybe we should change the default SEAICE_gamma_t_frz to be different (smaller) that SEAICE_gamma_t.
What do you think?

Dimitris Menemenlis

On Feb 7, 2012, at 4:56 AM, Martin Losch wrote:

> As an example, with the seaice-legacy code, this safeguard does not prevent low temperatures (-5degC) in my configuration.