Module ocean_topog_mod

OVERVIEW

Set up ocean bottom topography.

OTHER MODULES USED

       constants_mod
             fms_mod
     mpp_domains_mod
             mpp_mod
      axis_utils_mod
   ocean_domains_mod
ocean_parameters_mod
     ocean_types_mod

PUBLIC INTERFACE

PUBLIC DATA

PUBLIC ROUTINES

1. ocean_topog_init

   DESCRIPTION

   Initialize the ocean bottom topography.
   
   There are two reasons to prefer land be at j=1.
   
   A/ mom4 employs a northest B-grid. To construct horizontal remapping operators, we need information about grid factors one row outside of the global domain boundaries. In particular, we need j=0 grid information. However, when constructing the grid spec file, we assume nothing about the region outside the global domain. So mom4's requirement of j=0 grid information necessitates extrapolation. This extrapolation is done inside ocean_grids.F90, and it can lead to non-symmetric values of grid spacing for the region j=0 and j=nj, even if the domain global limits are symmetric across the equator.
   
   B/ The FMS Sea Ice Simulator (SIS) requires land to be present for all points at jsc+joff=1. If this is not the case, then the ocean model cannot be coupled to SIS. The SIS requirement of all land at jsc+joff=1 is related to the use of a northeast B-grid convention. To couple the models, the ocean grid must be generated with fill_first_row=.true.
   
   

   
   
   

NAMELIST

DATA SETS

ERROR MESSAGES