berger_tls | R Documentation |
Calculate true anomaly and true longitude
berger_tls(n, N, ke = 0.0167, keps = 23.44, komega = 283, pir = pi/180)
n |
Numeric, day of year. |
N |
Numeric, days in a year. |
ke |
double, eccentricity of earth's orbit. Default: 0.01670, 2000CE (Berger, 1978). |
keps |
double, obliquity of earth's elliptic. Default: 23.44, 2000CE (Berger, 1978). |
komega |
double, lon. of perihelion, degrees Default: 283, 2000CE (Berger, 1978). |
pir |
π (~ 0.017453) in radians. |
True anomaly and true longitude for a given day.
Berger, A.L., 1978. Long-term variations of daily insolation and Quaternary climatic changes. Journal of Atmospheric Sciences, 35(12), pp.2362-2367. doi: 10.1175/1520-0469(1978)035<2362:LTVODI>2.0.CO;2
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