Reads and parses the header of a text file output by the TUV program to extract the header and spectral data. The time field is converted to a date.
read_tuv_usrout(file, date = lubridate::today(), geocode = NULL,
label = NULL, tz = NULL, locale = readr::default_locale())
character string
a POSIXct
object, but if NULL
the date stored in
file is used, and if NA
no date variable is added
A data frame with columns lon
and lat
.
character string, but if NULL
the value of file
is
used, and if NA
the "what.measured" attribute is not set.
character Time zone is by default read from the file.
The locale controls defaults that vary from place to place. The
default locale is US-centric (like R), but you can use
locale
to create your own locale that controls things
like the default time zone, encoding, decimal mark, big mark, and day/month
names.
a source_spct object obtained by 'melting' the TUV file, and adding
a factor spct.idx
, and variables zenith.angle
and
date
.
http://www.r4photobiology.info https://www2.acom.ucar.edu/modeling/tuv-download