climdex.ddnorth: Northerly winds

View source: R/indices.R

climdex.ddnorthR Documentation

Northerly winds

Description

This function computes the climdex index DDnorth: Days with northerly wind (-45deg (315deg) < wind_dir <= 45deg).

Usage

climdex.ddnorth(ci, freq = c("annual", "halfyear", "seasonal", "monthly"))

Arguments

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".

Value

A vector containing the time series of days with northerly winds.

Author(s)

Rebekka Posselt (MeteoSwiss)

References

http://www.ecad.eu/indicesextremes/indicesdictionary.php


ECA-D/climind documentation built on Nov. 26, 2022, 10:20 a.m.