SunCalcMeeus-package {SunCalcMeeus} | R Documentation |
SunCalcMeeus: Sun Position and Daylight Calculations
Description
Compute the position of the sun, and local solar time using Meeus' formulae. Compute day and/or night length using different twilight definitions or arbitrary sun elevation angles. This package is part of the 'r4photobiology' suite, Aphalo, P. J. (2015) doi:10.19232/uv4pb.2015.1.14. Algorithms from Meeus (1998, ISBN:0943396611).
Details
Please see the vignette 0: The R for Photobiology Suite for a description of the suite.
Author(s)
Maintainer: Pedro J. Aphalo pedro.aphalo@helsinki.fi (ORCID)
References
Aphalo, Pedro J. (2015) The r4photobiology suite. UV4Plants Bulletin, 2015:1, 21-29. doi:10.19232/uv4pb.2015.1.14.
See Also
Useful links:
Report bugs at https://github.com/aphalo/SunCalcMeeus/issues
Examples
# daylength
sunrise_time(lubridate::today(tzone = "EET"), tz = "EET",
geocode = data.frame(lat = 60, lon = 25),
unit.out = "hour")
day_length(lubridate::today(tzone = "EET"), tz = "EET",
geocode = data.frame(lat = 60, lon = 25),
unit.out = "hour")
sun_angles(lubridate::now(tzone = "EET"), tz = "EET",
geocode = data.frame(lat = 60, lon = 25))
[Package SunCalcMeeus version 0.1.2 Index]