Thermal Dissipation (Granier)

Thermal Dissipation (Granier)

Thermal Dissipation (Granier)

The Thermal Dissipation Probe (TDP) directly measures sap velocity which can be converted to volumetric flow rate given an accurate measurement of sapwood area for the tree. TDP is an uncomplicated and inexpensive method ideally suited to whole plant transpiration measurements on large diameter trees. The principle of measurement was developed by Dr. Andre Granier of INRA in France and has been widely adopted by the plant science research community since 1996.