this post was submitted on 18 Jul 2023
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Why does this follow north hemisphere's seasons?
~~As I understand it it also coincides with the distance to the sun and~~ the fact that the southern hemisphere is mostly water keeps temperatures there more steady.
I was wrong on the first part, in fact the sun is closer un the southern hemisphere's summer than in the northern, but the difference in distance is minuscule. So the only reason is the water distribution.
In the northern summer earth is further away from the sun, so this neglegible effect is not the reason, but rather is getting overpowered by the effect of water keeping the temperatures more steady over the year than land
And cause 87% of the planets population resides above the equator.
No. This is a global average, not one weighted by population. (Edit for spelling)
The correct answer is neither the distance to the sun nor the distribution of the populagion, though the latter is related to the answer. It is because more land is on the northern hemisphere than on the southern hemisphere. This also holds when weigthed with the suns angle of incidence across the seasons.
Land changes temperature more quickly, so the oscillation over the year from it is larger than from water, dominating it here.
Cool, thanks!
The answer is quite simple
No. This is a global average, not one weighted by population. (Edit for spelling)