ESR7: Developing methodologies/strategies to monitor the effects of hydrological extremes (droughts and floods) on biogeochemical cycling at terrestrial-aquatic interfaces

Research Fellow: Astrid Harjung, University of Barcelona (Spain)


ESR7 will quantify the effects of stream flow fluctuations on biogeochemical processes, carbon metabolism and nitrogen dynamics occurring at the riparian/surface/hyporheic zone interfaces. Special emphasis will be placed on quantifying the effects of hydrological extreme events (drought and floods).

Tasks and methodology

ESR7 will develop new and existing methodologies to study the temporal dynamics of biogeochemical processes at terrestrial aquatic interfaces associated with fluctuations in streamflow. ESR7 will evaluate the effects of those fluctuations on the biogeochemical processes (carbon metabolism (ESR4) and nitrogen cycling (ESR8, ESR9) occurring at the riparian/surface/hyporheic zone interfaces by combining hydraulic measurements with tracer techniques (in collaboration with ESR10 and ER1), optical sensors (ESR3), and up-scaling techniques developed by ESR1.


  • Francesc Sabater (University of Barcelona)
  • Co-Supervisor: Gilles Pinay (CNRS)

Video Introduction

Watch this short video of ESR7 Astrid Harjung introducing herself and talking about her Interfaces project: