All points containing a fraction of sea enter the same call tree in assim_sea_n. In this section the namelist settings and alghoritms will be explained.
SURFEX has a sea fraction, but CANARI has a binary land-sea mask. There is an option to set LEXTRAP_SEA true, to extrapolate the nearest (in space) SST value in point where CANARI has land, but SURFEX has a sea fraction. This is to avoid that the SST gets a too high influence of land (...)
At the moment no particular data assimilation is done for the sea-tile and only SST is modified. Depending on the namelist options in NAM_ASSIM the sea properties the SST is taken from the following sources:
Fortran name Fortran type values default value LAESST logical (...)
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