Karst hydrology - Signal processing

These karstic hydrosystems represent a significant proportion of the groundwater supplying the population in France, but also throughout the Mediterranean region. They also play an important role in the so-called Cévennes floods (or those occurring around the Mediterranean), particularly in terms of their management. These hydrosystems are also characterized by significant interactions between surface water and groundwater: whether in the form of active losses localized in rivers, which directly feed the associated karst aquifer, or major karst springs that are the source of rivers or streams.                                       This course unit will present these hydrosystems and how they function, as well as the methods used to study them. The "Surface Water-Groundwater Interaction" aspect will be given particular attention in this course unit, through the study of:

• Artificial tracing: Techniques, methods of implementation (theoretical and practical), methods of analysis and interpretation. Artificial tracing
• Signal processing and rainfall-runoff modeling, particularly for karstic sources that feed rivers or streams.

These lessons will take the form of theoretical classes, but also practical work involving the processing of artificial tracing data or the processing of source flow signals. A day-long field trip will provide an opportunity to carry out various experiments on a karst hydrosystem, in particular artificial tracing.

The objective of this course unit is to master artificial tracing and signal processing tools through the study of karstic hydrosystems, which play a major role in the study of groundwater and surface water resources, particularly in France and around the Mediterranean.

Have acquired the basics in hydrogeology and hydrology from the M1 Water Resources program (have validated course units equivalent to Water Cycle, Functioning of Hydrosystems, Hydrodynamics from the M1 program).

The assessment includes a practical work grade (continuous assessment in the form of a report or presentation of work carried out in practical sessions) and a final exam grade covering the theoretical knowledge addressed in the course unit.