R/snotel_phenology.r
snotel_phenology.Rd
First snow melt, first continuous snow melt, first snow accumulation and continous snow accumulation are reported.
snotel_phenology(df, threshold = 0, offset = 180)
a snotel data file or data frame
threshold for mapping continuous snow cover
offset of the year relative to January first (DOY 1)
Be sure to execute this code on individual sites when loading a combined tidy data frame containing data for multiple sites.
if (FALSE) {
# download one of the longer time series
df <- snotel_download(site_id = 670, internal = TRUE)
# calculate the snow phenology
phenology <- snotel_phenology(df)
# show a couple of lines
head(phenology)
}