Question: don't just copy someone's answer. will report 2 How deeply does the daily temperature variation penetrate below the surface? (i.e. evaluate the skin depth for

 don't just copy someone's answer. will report 2 How deeply does

don't just copy someone's answer. will report

2 How deeply does the daily temperature variation penetrate below the surface? (i.e. evaluate the skin depth for a daily variation). Assume that the thermal diffusivity is =106m2s1. Compare with the penetration depth of an annual temperature variation and a temperature variation over a 100-kyr ice age cycle. (The ice-age cycle is not strictly periodic, but you can still get a reasonable estimate using the skin depth)

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