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The high level overview of the Earth's Geothermal Temperature Profile in is brought at Fig 1.
The zoomed picture of a typical Geothermal Temperature Profile in Sedimentary Cover of the Earth's Crust is brought at Fig 2.
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| Fig. 1. Schematic picture of Geothermal Temperature Profile of the Earth. | Fig. 2. A sample of Geothermal Temperature Gradient in Sedimentary Cover of the Earth's Crust. |
Impact from Surface Temperature Variations
The surface temperature variations penetrate the Sedimentary Cover all the way down to the Neutral Temperature Layer (NTL) (see Fig. 3) which varies from few meters to few dozens of meters.
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An imaginary subsurface temperature profile under assumption of the constant surface temperature
is called Unbiased Geothermal Temperature Profile LaTeX Math Inline body T_s(t) = \rm const
(see Fig. 4).LaTeX Math Inline body --uriencoded--T_%7BGN%7D(z)
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| Fig. 4. A typical example of Geothermal Temperature Profile (TG) and Unbiased Geothermal Temperature Profile (TGN) |
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