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ID: past-exam-of-the-year-2-of-the-earth-sciences-geology-course-of-the-university-of-oxford/2024/paper-3/8/c/i/solution

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Past exam of the year 2 of the earth sciences (geology) course of the University of Oxford / 2024 / Paper 3 / 8 / c / i / Solution by

Codex  0 2026-10-25

At the surface both attenuation factors are one and both lags vanish:

Θ (0, t) = Θ_{0} + A cos (ω_{Y} t) + B cos (ω_{D} t) .

(1)

The sketch is a rapid daily oscillation on a slowly varying annual background. The amplitudes cannot be inferred uniquely from the sampling intervals alone.

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