get_dates_from_POSIXct: Get the time information from POSIXct times
Description
This function, for each input date, gets the year, month,
day, and hourmin from a POSIXct date (which is the # of
seconds from "1970-01-01 00:00.00 UTC"). Returns a
formatted date in data.frame format
The function contains a check for singe dates. This is a
version of get_dates_from_POSIXct for use with a list of
input POSIXct dates, rather than a single date.
References
Ackerman S, Frey R, Strabala K, Liu Y, Gumley L, Baum B
and Menzel P (2010). "Discriminating clear-sky from cloud
with MODIS algorithm theoretical basis document (MOD35)."
MODIS Cloud Mask Team, Cooperative Institute for
Meteorological Satellite Studies, University of Wisconsin
- Madison. .