Consider a region with average surface temperature T 0 10 C, annual fluctuations of T 30 C, and surface soil with a 2 4 10 7 m 2 s, k 0 3W mK If the local upward heat flux from geothermal sources is 80mW m 2 , compute the depth at which the heat flux from surface fluctuations is comparable What is the answer if the area is geo thermally active and has a geothermal heat flux of 160mW m 2

Question: Consider a region with average surface temperature T 0 = 10 C, annual fluctuations of T = 30 C, and surface soil with

Consider a region with average surface temperature T₀ = 10 ^◦C, annual fluctuations of ΔT = 30 ^◦C, and surface soil with a ≅ 2.4 × 10⁻⁷ m²/s, k ≅ 0.3W/mK. If the local upward heat flux from geothermal sources is 80mW/m², compute the depth at which the heat flux from surface fluctuations is comparable. What is the answer if the area is geo thermally active and has a geothermal heat flux of 160mW/m²?

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