The measurement of ground heat flux is required for many applications. Advanced Very High Resolution Radiometer (AVHRR) data are used within this study, the temporal resolution providing several overpasses throughout a single diurnal cycle at a suitable spatial and radiometric resolution. The technique of thermal inertia mapping by airborne and satellite-borne sensors has opened a new field of quantitative thermal property interpretation from thermal infrared remote sensing surveys. The algorithms adopted to calculate the ground heat flux were based on the second-order approximation thermal inertia model (SoA-TI model) of Xue and Cracknell. Not only the amplitude of the surface temperature wave but also the phase information of the surface temperature change are used. The approach is demonstrated by using some AVHRR data from France.
展开▼
