[MITgcm-cvs] MITgcm/doc CVS Commit

[Martin Losch]

Update of /u/gcmpack/MITgcm/doc
In directory forge:/tmp/cvs-serv27307/doc

Modified Files:
	tag-index 
Log Message:
o pkg/seaice: introduce new parameter SEAICEscaleSurfStress (default = .FALSE.)
  - if TRUE scale ice-ocean and ice-atmosphere stress acting on sea ice
    by AREA according to Connelly et al. (2004), JPO.
  - For EVP and the LSR solver, the implicit part of the drag term is
    the only non-zero term in the denominator when there is no ice (which 
    prevented running the model with zero ice-ocean drag). If
    SEAICEscaleSurfStress = .TRUE., this results in a division by zero
    (or zero main diagonals BU/BV) which need to be caught. A practical
    consequence is that for open water, the momentum equation reduce
    to trivially 0 = 0 + 0 (for EVP). For LSR, BU/BV are reset to 1, if 
    they happen to be zero, often leading to a non-zero solution over
    open water.