solarPosition: Solar zenith and azumith angles

In solarPos: Solar Position Algorithm for Solar Radiation Applications

Description

Computes the solar zenith and azimuth for a place on Earth for a given date and time.

Usage

solarPosition(jd, lon, lat, delta_t = 32.184, elev = 0, temp = 16, pres = 1013.25)

Arguments

jd	Julian day, with decimal fraction.
lon	Longitude, in decimal degrees.
lat	Latitude, in decimal degrees.
delta_t	Difference between the Earth rotation time and the Terestrial Time (TT), in seconds.
elev	Elevation, in meters.
temp	Temperature, in degrees Celsius.
pres	Pressure, in hPa.

Details

Solar zenith and azimuth angle are give in degrees, azimuth is measured eastward from north.

Value

Matrix of solar zenith and azimuth angles.

Author(s)

Jasper Van doninck

Examples

##Julian day

jd <- julianDay(2003,10,17,12,30,30,tz=-7)


##Solar angles

solarPosition(jd,-105.1786,39.742476,delta_t=67,elev=1830.14,temp=11,pres=820)

Example output

       zenith  azimuth
[1,] 50.11162 194.3402

solarPos documentation built on May 2, 2019, 9:59 a.m.