A thermal-based remote sensing technique for routine mapping of land-surface carbon, water and energy fluxes from field to regional scales Academic Article uri icon

abstract

  • Robust yet simple remote sensing methodologies for mapping instantaneous land-surface fluxes of water, energy and CO 2 exchange within a coupled framework add significant value to large-scale monitoring networks like FLUXNET, facilitating upscaling of tower flux observations to address questions of regional carbon cycling and water availability. This study investigates the implementation of an analytical, light-use efficiency (LUE) based model of canopy resistance within a Two-Source Energy Balance (TSEB) scheme driven primarily by thermal remote sensing inputs. The LUE model computes coupled canopy-scale carbon assimilation and transpiration fluxes, and replaces a Priestley–Taylor (PT) based transpiration estimate used in the original form of the TSEB model. In turn, the thermal remote sensing data provide valuable diagnostic information about the sub-surface …

publication date

  • December 15, 2008