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The Environment / Re: Why are the suns rays hot some days and not others?
« on: 20/09/2019 10:12:22 »
If you consider the elevation of the sun, rays have a lot more atmosphere to pass through in winter, hence greater absorption of IR.
Also, if you consider the energy/m2 in a plane perpendicular to the rays then consider the angle of ground relative to the rays you will see that the energy is spread out over a greater area in winter reducing the heating, and hence air temperature, next to the ground.
Obviously, if you are standing then you are closer to the ray perpendicular, in which case the distance through atmosphere has greater effect.
Also, if you consider the energy/m2 in a plane perpendicular to the rays then consider the angle of ground relative to the rays you will see that the energy is spread out over a greater area in winter reducing the heating, and hence air temperature, next to the ground.
Obviously, if you are standing then you are closer to the ray perpendicular, in which case the distance through atmosphere has greater effect.
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