ClimInd (version 0.1-2)

fd: Frost days

Description

Number of days with TN < 0 Celsius.

Usage

fd(data, data_names = NULL, time.scale = YEAR, na.rm = FALSE)

Arguments

data

minimum temperature

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

frost days

References

Klein Tank AMG, Zwiers FW, Zhang X. 2009. Guidelines on analysis of extremes in a changing climate in support of informed decisions for adaptation, climate data and monitoring WCDMP-No 72, WMO-TD No 1500, p 5.

Examples

# NOT RUN {
data(data_all)
fd(data=data_all$tn)
# }