@BeginModule
@NewPage
@Name      = EcaStrwin
@Title     = Strong wind days index per time period 
@Section   = ECA indices
@Class     = ECA index
@Arguments = ifile ofile
@Operators = eca_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_eca_strwin
@Title     = Strong wind days index per time period
@Parameter = [v]
@EndOperator


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