Gamma-ray spectroscopy for unique 100-m-scale estimation of the precipitation captured by the forest canopy

Interception loss is the amount of rainfall that is captured by vegetation and is evaporated directly back to the atmosphere. It can account for up to 30% of the annual rainfall. Currently, measurements of interception loss are not included directly in hydrological catchment models used for water resource management. State-of-the-art techniques are connected with large uncertainties due to a low spatial representability. In this project, for the first time, gamma-ray sensing will be used to estimate interception loss. The measurements represent a unique 100-m-scale appropriate for catchment models. Ultimately, this will result in a more reliable and sustainable water management nationally and globally.