@BeginModule
@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 the daily maximum horizontal wind speed
VX, then the number of days where VX > v is counted. The horizontal wind
speed v is an optional parameter with default v = 10.5 m/s. A further
output variable is the maximum number of consecutive days with maximum wind
speed greater than or equal to v. Note that both VX and v have to 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 of a timestep in @file{ofile} is the date of
the last contributing timestep 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
