After 30 whole seconds of thought, I concur. My intuition, including a lot of handwaving, is it's a consequence of having more landmass in the northern hemisphere.
I'm going to postulate a bold and unintuitive hypothesis: the world has more southfacing coastline than northfacing coastline (in total distance). Do you agree or disagree? Discuss!
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That was my thinking, exactly. But it's not obvious. I think the point
@_pauldale_ makes about Antarctica is on the right lines, but overcompensated for by the land in the northern hemisphere. - Show replies
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I see where you are going with this, but I think the fractal northern coasts and Antarctica might balance it out.
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Because of fractals or ice?
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No, that wasn't what I was getting at, but fractalline coastlines make it harder to think about. See my other reply, though...
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While perhaps not obviously true it seems at least likely. There is more land mass in the northern hemisphere and due to larger circumference towards the equator likely more distance spanned by the southern coasts.
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I think this would be true except for Antarctica, which (I believe) has a pretty huge amount of coastline, almost all north-facing
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Asia has a ton more south-facing coastline, because the arctic ocean is much smaller than the Indian and Mediterranean oceans (though map projections fool you). But I'm not sure about the Americas...
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why do you need to postulate when you can whip up an OpenStreetMap query that'd yield results ? (sampling resolution might influence your results; take a generally east-west fjord for instance…)
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* easier said than done though
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