Dr Mathieu Mongin

Mathieu Mongin is a biogeochemical modeller working within the Coastal Environmental Modelling team at CSIRO. He completed his PhD in 2005 at Oregon State University (USA), followed by a postdoctoral fellowship at the University of Tasmania, before joining CSIRO in 2010.

His research focuses on biogeochemical cycles (BGC) and marine ecosystems, aiming to develop original and innovative approaches to understand the interactions between biological, chemical, and physical processes in the ocean. He is particularly interested in processes affecting coastal marine environments, including productivity, carbon export, and the response of these systems to external perturbations such as climate variability, climate change, and ocean acidification.

Mathieu’s work includes:
• Numerical simulations of the Great Barrier Reef (Australia Coral Sea) to assess the impacts of flood events and water quality on reef health.
• Ocean acidification research, including carbon chemistry modelling of Heron Island reef (Great Barrier Reef, SE Queensland), integrated with in situ observational data.
• Geoengineering and mitigation projects, exploring small-scale chemical and biological interventions—such as alkalinity addition and macroalgae communities—to buffer ocean acidification through numerical experiments.

His research combines modelling, field observations, and experimental approaches to inform management decisions and advance understanding of complex coastal marine systems.