@BeginModule
@NewPage
@Name      = Filedes
@Title     = Dataset description
@Section   = Information
@Class     = Information
@Arguments = ifile
@Operators = vardes griddes vct

@BeginDescription
This module prints, according to the actual operator, the description
of the variables, the grids or the vertical coordinate table.
@EndDescription
@EndModule


@BeginOperator_vardes
@Title     = Variable description

@BeginDescription
Prints a table with a description of all variables.
For each variable the operator prints one line listing the
code, name, description and units.
@EndDescription
@EndOperator


@BeginOperator_griddes
@Title     = Grid description

@BeginDescription
Prints the description of all grids in a file.
@EndDescription
@EndOperator


@BeginOperator_vct
@Title     = Vertical coordinate table

@BeginDescription
Prints the vertical coordinate table.
@EndDescription
@EndOperator


@BeginExample
Assume an input dataset having three variables with the names geosp, t and tslm1.
To print the description of these variables use:
@BeginVerbatim
   cdo vardes ifile
@EndVerbatim
Result:
@BeginVerbatim
   129  geosp         surface geopotential (orography) [m^2/s^2]
   130  t             temperature [K]
   139  tslm1         surface temperature of land [K]
@EndVerbatim
Assume all variables of the dataset are on a T21 gausssian grid.
To print the grid description of this dataset use:
@BeginVerbatim
   cdo griddes ifile
@EndVerbatim
Result:
@BeginVerbatim
   gridtype  : gaussian
   gridsize  : 2048
   xname     : lon
   xlongname : longitude
   xunits    : degrees_east
   yname     : lat
   ylongname : latitude
   yunits    : degrees_north
   xsize     : 64
   ysize     : 32
   xfirst    : 0
   xinc      : 5.625
   yvals     : 85.76058 80.26877 74.74454 69.21297 63.67863 58.1429 52.6065
               47.06964 41.53246 35.99507 30.4575 24.91992 19.38223 13.84448
               8.306702 2.768903 -2.768903 -8.306702 -13.84448 -19.38223
               -24.91992 -30.4575 -35.99507 -41.53246 -47.06964 -52.6065
               -58.1429 -63.67863 -69.21297 -74.74454 -80.26877 -85.76058
@EndVerbatim
@EndExample
