Thermal admittance and diffusivity
Fragment of a discussion from Course talk:APBI200
Dexter, when interpreting thermal diffusivity or thermal admittance, go back to the components. 1) Thermal conductivity - how it changes with water content and mineral versus organic materials; and 2) soil heat capacity. If you understand the components you can follow the relationships for thermal admittance(which tells us about changes in surface temperature) and thermal diffusivity (which relates to subsurface temperature response).
SandraBrown (talk)