Figure 3. Solar harmonic components


Solar harmonics components as a function of latitude, according to Reed (1977). Black: Amplitude (W/m2) of the 1 cpy harmonic of solar radiation. The minimum occurs at 2.6N. Red: Amplitude of the 2 cpy harmonic of solar radiation. Green: The ratio of the 2 cpy to the 1 cpy amplitudes, times 10. The value of the ratio is 1.58 at the equator.
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