calc_sun_pos: Calculate Sun Position

In grahamstewart12/tidyflux:

Description

Calculate the position of the sun. REddyProc name: fCalcSunPosition.

Usage

calc_sun_pos(doy, hour, lat, long, tz, solar_time = TRUE)

Arguments

doy	A vector with day of year, same length as hour or length 1.
hour	A vector with time as decimal hour of local time zone.
lat	Latitude in (decimal) degrees.
long	Longitude in (decimal) degrees.
tz	Time zone (in hours).
solar_time	Should hour (given in local winter time) be corrected for latitude to solar time where noon is exactly at 12:00 (default)? Set to FALSE to directly use local winter time.

Details

Assumes that hour is given in local winter time zone, and corrects it by longitude to solar time (where noon is exactly at 12:00). Set argument solar_time to FALSE to use the local winter time instead.

Value

A list with vectors:

• sol_time Solar time in hours

• sol_decl Solar declination in radians

• sol_elev Solar elevation in radians with 0 at horizon

• sol_azim Solar azimuth in radians with 0 at North

grahamstewart12/tidyflux documentation built on June 4, 2019, 7:44 a.m.