MEASUREMENT OF SENSIBLE AIR-GROUND INTERFACE TEMPERATURES

Abstract

Several methods of measuring the sensible air-ground interface temperature are discussed. The sensible air-ground interface temperature is here defined as that temperature of the interface as indicated by properly exposed temperature sensors. A comparison is made between the temperature of a copper plate in direct contact with the soil surface, and that indicated by the bottom plate of a ?Suomi-Kuhn Economical Net Radiometer? at night. Results using several types of temperature sensors are discussed. Temperatures obtained from a copper plate with a thermohm sensor and the lower plate of a modified net radiometer show an average difference of 0.3° C.