How does obliquity affect the climate?

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Answer 1 · 2016-08-10T01:18:52

Its effect on climate is measurable as incremental, for one half year, and decremental, for the other half.

At a place of latitude $θ^{o}$ $theta^o$ N/S, the angle of incidence of solar

rays has the annual range $θ \pm (o b l i q u i t y) {23.4}^{o}$ $theta +- ( obliquity ) 23.4^o$

If the change in the range is incremental in northern latitudes, it is

decremental in southern latitudes, and vice versa..

At a Solstice ( by about December 21 or June 23 )), the angle is

either the maximum $θ + {23.4}^{o}$ $theta + 23.4^o$ or the minimum $θ - {23.4}^{o}$ $theta-23.4^o$ ..

The mean value $l a t i t u d e$ $latitude$ is attained at an equinox ( by about

March 21 or September 23 )..

This gradation, in every day radiation, affects climate at a place.

The absolute value for this rate of change ( $\pm$ $+-$ ) is

$\frac{4 X 23.4}{365.25}$ $(4 X 23.4)/365.25$

= a quarter degree/day, nearly..

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