So.. we're roughly midway though the cycle, at peak dryness then.
Hmm.. The Midwest of America also has a 20,000 year periodic cycle of droughts IIRC, coming in amplitude waves roughly 600 years apart, with each amplitude peak lasting about 100 years. I wonder if the Sahara is the same? Although it probably has a longer amplitude peak if it does, since it's a larger area and thus has a greater degree of inertia in the system.
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dancing_serpent
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Date: 2019-02-25 01:11 pm (UTC)Hmm.. The Midwest of America also has a 20,000 year periodic cycle of droughts IIRC, coming in amplitude waves roughly 600 years apart, with each amplitude peak lasting about 100 years. I wonder if the Sahara is the same? Although it probably has a longer amplitude peak if it does, since it's a larger area and thus has a greater degree of inertia in the system.
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