Supporting commission(s) / organisations: ICT

Environmental and artificial tracers provide insights into functioning of different compartments of the hydrological cycle and assist the development of their conceptual and numerical models. They are used to fingerprint the sources of water and contaminants, to trace their flow pathways, to quantify fluxes and transport parameters and to infer transit times through soils, aquifers and catchments. Tracer techniques are indispensable for assessing the dynamic nature of human influences on the quantitative and qualitative status of surface water and groundwater resources. Contributions are invited that demonstrate the application and recent developments of tracer techniques in field studies or modelling in all areas of the surface and sub-surface hydrology.