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| LaTeX Math Block |
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|
H_N = \sqrt{\frac{a_e \, A_T }{\pi}} \, \ln \frac{\delta T_A }{\delta T_{\rm cut} } |
where
below the | with reference to the Earth's surface |
| Local average Thermal diffusivity of the soil between Earth's surface and NTL |
| Period of annual temperature variation cycle: | LaTeX Math Inline |
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| body | --uriencoded--A_T = 1 \, %7B\rm year%7D |
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|
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| Annual |
average | average Earth's surface temperature variation in a given location based on weather reports |
| LaTeX Math Inline |
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| body | --uriencoded--\delta T_%7B\rm cut%7D |
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|
| Temperature measurement threshold (usually | LaTeX Math Inline |
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| body | --uriencoded--\delta T_%7B\rm cut%7D = 0.001 \, %7B\rm °C%7D |
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|
) |
See Also
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Geology / Geothermal Temperature Field / Neutral Temperature Layer
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