Natural subsurface temperature profile along the True Vertical Direction: T({\bf r}), where {\bf r} is position vector.
Upward vertical heat conduction from Earth's Centre towards Earth's surface leading to a static geothermal profile
Natural subsurface temperature profile along the True Vertical Direction: T({\bf r}), where {\bf r} is position vector.
Upward vertical heat conduction from Earth's Centre towards Earth's surface leading to a static geothermal profile