Modeling and simulation of biogeochemical cycles in lakes

By Celine Casenave, research director at the MISTEA joint research unit in Montpellier since 2011. Trained as an automation engineer and applied mathematician, she conducts research in modeling, identification, and control of deterministic nonlinear dynamic systems. Her main areas of application are the control of alcoholic fermentation in wine, the modeling and optimization of agro-ecosystems, and the simulation of lake ecosystems.

Summary

Lakes and reservoirs play a crucial role in the water cycle and biodiversity, and provide important ecosystem services (drinking water supply, hydroelectric power, irrigation, flood mitigation, recreational activities). Like many ecosystems, they are heavily impacted by anthropogenic environmental changes. Today, more than half of the world's freshwater lakes and rivers are polluted. Lake temperatures are also changing rapidly in response to global warming, making lakes "sentinels" of climate change. The effect on biogeochemical cycles is also significant, as evidenced by the increase in the frequency and intensity of cyanobacterial blooms.
In this context, the development of mathematical models to predict changes in water quality in response to environmental and anthropogenic forcings is essential to guide managers and decision-makers.
This seminar will present various interdisciplinary studies on the modeling and simulation of biogeochemical cycle dynamics in lakes, with a particular focus on cyanobacterial blooms.

Modeling and simulation of biogeochemical cycles in lakes 

Lakes and reservoirs play a crucial role in the water cycle and biodiversity, and provide important ecosystem services (drinking water supply, hydroelectric power, irrigation, flood mitigation, recreational activities). Like many ecosystems, they are heavily impacted by anthropogenic environmental changes. Today, it is estimated that more than half of the world’s freshwater lakes and rivers are polluted. Lake temperatures are also changing rapidly in response to global warming, making lakes “sentinels” of climate change. The effect on biogeochemical cycles is also significant, as evidenced by the increased frequency and intensity of cyanobacterial blooms.
In this context, the development of mathematical models that can predict changes in water quality in response to environmental and anthropogenic changes is essential to guide managers and decision-makers.
This seminar will present various interdisciplinary works contributing to the modeling and simulation of biogeochemical cycles in lakes, with a particular focus on cyanobacterial blooms.

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