AST: Apparent Solar Time

In solrad: Calculating Solar Radiation and Related Variables Based on Location, Time and Topographical Conditions

Description

This function returns the apparent solar time (in minutes) for a given day of year and location.

Usage

AST(DOY, Lon, SLon, DS)

Arguments

DOY	Day of year
Lon	Longitude in degrees
SLon	Standard longitude (based on time zone) in degrees
DS	Daylight saving in minutes

Examples

#Calculating apparent solar time for two consecutive days

DOY <- seq(0, 2, .05)

ast <- AST(DOY, Lon=0, SLon=0, DS=60)
#Note: only the difference between Lon and SLon matters not each value

plot(DOY, ast)

solrad documentation built on May 2, 2019, 12:38 p.m.