@BeginModule
@NewPage
@Name      = Strwin
@Title     = Strong wind days index per time period 
@Section   = Miscellaneous
@Arguments = ifile ofile
@Operators = strwin

@BeginDescription
Let @file{ifile} be a time series of daily maximum horizontal wind speeds
VX, then counted is the number of days where VX > v. The horizontal wind
speed v is an optional parameter with default v = 10.5 m/s. Note that both
VX and v must be given in units of m/s. Also note that the horizontal wind
speed is defined as the square root of the sum of squares of the zonal and
meridional wind speeds.
The date information for a time step in @file{ofile} is the date of
the last contributing time step in @file{ifile}.
@EndDescription
@EndModule


@BeginOperator_strwin
@Title     = Strong wind days index per time period
@Parameter = [v]
@EndOperator


@BeginParameter
@Item = v
FLOAT   Horizontal wind speed threshold (m/s, default v = 10.5 m/s)
@EndParameter
