@wikipedia
Rate of Geothermal Temperature
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| body | --uriencoded--T_G(%7B\bf r%7D) |
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change along
True Vertical Direction:
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{\rm Grad} T_{GN}({\bf r}) = \frac{\partial T_{GN}}{\partial z} |
It can be estimated as ratio of true vertical component of regional Earth's Heat Flux
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| body | --uriencoded--j_z(%7B\bf r%7D) |
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to the
subsurface Thermal Conductivity | LaTeX Math Inline |
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| body | --uriencoded--\lambda_e(%7B\bf r%7D) |
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at a certain
subsurface point | LaTeX Math Inline |
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| body | --uriencoded--%7B\bf r%7D |
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:
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{\rm Grad} T_{GN}({\bf r}) = \frac{j_z({\bf r})}{\lambda_e({\bf r})} |
| Fig. 1. Schematic view of the Earth's Geothermal Temperature Gradient. |
The most common value of Unbiased Geothermal Temperature Gradient (GT) away from tectonic plate boundaries is: | LaTeX Math Inline |
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| body | G_T = 0.025 ÷ 0.035 \, \rm °C/m |
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.
See Also
Geology / Geothermal Temperature Field
[ Geothermal Temperature Gradient (GradT) ] [ Geothermal Temperature Profile (TG) ]
