The post-processing

The following analyses are available in the post-processing part of OASIS3, controlled by /prism/src/mod/oasis3/src/postpro.f.

• REVERSE:

  REVERSE (routine /prism/src/mod/oasis3/src/reverse.f) reorders a field.

  This analysis requires the same input line as INVERT, with $CORLON and $CORLAT being now the resulting orientation. REVERSE does not work for U and D grids (see annexe A).

• CHECKOUT:

  CHECKOUT (routine /prism/src/mod/oasis3/src/chkfld.f) calculates the mean and extremum values of an output field and prints them to the coupler output cplout.

  The generic input line is as for CHECKIN.

• GLORED (not recommended as coupling fields can be directly interpolated to a target Reduced grid, if needed):

  GLORED performs a linear interpolation of field from a full Gaussian grid to a Reduced grid. When present, GLORED must be the last analysis performed.

  Before doing the interpolation, non-masked values are automatically extrapolated to masked points with EXTRAP/NINENN method (see above); to do so, the masked grid points are first replaced with a predefined value. The required global grid mask must be present in data file masks or masks.nc (see section 7.2).

  The generic input line is as follows:

  # GLORED operation
       $NNBRLAT  $NV   $NIO   $NID
  

  where $NNBRLAT is as for REDGLO (see REDGLO description above). The next 3 parameters refer to the EXTRAP/NINENN extrapolation (see EXTRAP/NINENN description above). The value assigned to all land points before interpolation is given by amskred in /prism/src/mod/oasis3/src/blkdata.f; as for the $VALMASK in MASK analysis, it has to be chosen well outside the range of your field values but not too large to avoid any representation problem.