Assessment of the triangle method (T-VI) for detection of water leaks from airplane and UAV

Water leak detection in water transportation mains outside urban areas by airborne remote sensing has been assessed with a series of measurement campaigns in 2017 and 2018 over SCP (Societe du Canal de Provence – France) network. The most appropriate equipment for revealing high moisture areas and artificial leaks coming from the image database (VNIR, TIR spectral range) allowed us to validate the choice of the onboard instrumentation for both types of platforms (manned & unmanned) associated with the multispectral approach (Triangle method). This work aims to validate further the water leak detection technique developed in the WADI project. This was performed in the framework of a new airborne campaign in May and September 2019 over EDIA (Empresa de Desenvolvimento e Infra-estruturas do Alqueva – Portugal) network with a plane and an UAV in operational environment.