climdex.ddnorth | R Documentation |
This function computes the climdex index DDnorth: Days with northerly wind (-45deg (315deg) < wind_dir <= 45deg).
climdex.ddnorth(ci, freq = c("annual", "halfyear", "seasonal", "monthly"))
ci |
Object of type climdexInput (representing the daily mean wind direction in [deg] with 0deg being wind from north) |
freq |
Time frequency to aggregate to. Allowed are: "annual","halfyear", "seasonal" or "monthly". Default: "annual". |
A vector containing the time series of days with northerly winds.
Rebekka Posselt (MeteoSwiss)
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