Co-Authors:
Hadas, A., Division of Soil Physics, Institute of Soils and Water, Agricultural Research Organization, Bet Dagan, Israel
Abstract:
The methods of cylindrical or planar probes for determining the thermal conductivity and diffusivity of soils involve problems of probe-soil contact impedance of unknown magnitudes which impairs accuracy. Probe-soil contact impedance was determined experimentally for planar probe in a moist soil and used to evaluate the expected accuracy of determining the soil thermal properties in situ. It is concluded that planar or cylindrical probes should be used in moist soils, provided low thermal outputs of short duration are applied. © 1974.
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