ClimInd (version 0.1-3)

wci: Wind chill index

Description

Wind chill index is the lowering of body temperature due to the passing-flow of lower-temperature air. It combines air temperature and wind speed.

Usage

wci(taverage, w, data_names = NULL, time.scale = YEAR, na.rm = FALSE)

Arguments

taverage

daily mean temperature, Celsius

w

average wind, m/s

data_names

names of each period of time

time.scale

month, season or year

na.rm

logical. Should missing values (including NaN) be removed?

Value

index value

Formula

$$WCI = 13.12 + 0.6215 * TG - 11.37 * v ^ {+ 0.16} + 0.3965 * TG * v ^ {+ 0.16}$$ Where TG in celsius and v is wind speed in Km/h

References

Osczevski, Randall; Bluestein, Maurice (2005). The new wind chill equivalent temperature chart. Bulletin of the American Meteorological Society. 86 (10): 1453<U+2013>1458

Examples

# NOT RUN {
data(data_all)
wci(taverage = data_all$tg, w = data_all$wind)
# }