Retrieves 15-minute leaf-wetness data from the AZMet (Arizona Meteorological Network) API. Currently, these data only are available from weather stations in the Yuma area. For a list of stations and their locations see station_info, or visit https://azmet.arizona.edu/about.
Arguments
- station_id
Station ID can be supplied as numeric vector (e.g.
station_id = c(8, 37)) or as character vector with the prefix "az" and two digits (e.g.station_id = c("az08", "az37")). If left blank, data for all stations will be returned.- start_date_time
A length-1 vector of class POSIXct or character in YYYY-MM-DD HH:MM:SS format, in AZ time. If only a date (YYYY-MM-DD) is supplied, data will be requested starting at 00:00:01 of that day.
- end_date_time
A length-1 vector of class POSIXct or character in YYYY-MM-DD HH:MM:SS format, in AZ time. If only a date (YYYY-MM-DD) is supplied, data will be requested through the end of that day (23:59:59). Defaults to the current date and time if left blank and
start_date_timeis specified.
Value
A tibble. For units and other metadata, see https://azmet.arizona.edu/about
Details
If neither start_date_time nor end_date_time are supplied, the
most recent datetime of data will be returned. If only start_date_time
is supplied, then end_date_time defaults to the current time. Supplying
only end_date_time will result in an error.
Note
If station_id is supplied as a vector, multiple successive calls to
the API will be made. You may find better performance getting data for all
the stations by leaving station_id blank and subsetting the resulting
dataframe. Only the most recent 48 hours of 15-minute data are stored in
the AZMet API.
Examples
if (FALSE) { # \dontrun{
# Most recent 15-minute leaf-wetness data for all stations:
az_lw15min()
# Specify stations:
az_lw15min(station_id = c(1, 2))
az_lw15min(station_id = c("az01", "az02"))
# Specify dates:
az_lw15min(start_date_time = "2022-09-25 01:00:00")
az_lw15min(start_date_time = "2022-09-25 01:00:00", end_date_time = "2022-09-25 07:00:00")
} # }