A Parameter which returns the value from an annual harmonic series.
This Parameter comprises a series N cosine function with a period of 365 days. The calculation is performed using the Julien day of the year minus 1. This causes a small discontinuity in non-leap years. API Reference
mean
Mean value for the series (i.e. the position of zeroth harmonic)
Yes
amplitudes
The amplitudes for the N harmonic cosine functions. Must be the same length as phases
Yes
phases
The phase shift of the N harmonic cosine functions. Must be the same length as amplitudes
Yes
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