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Arnoux, Marie

Postdoctoral Researcher

 

Research: 

I am a hydrogeologist particularly interested in interactions between surface water and groundwater. I worked on groundwater-lake interactions and their sensitivity to climate and environmental changes in Canada and I am now working on groundwater storage dynamics and river discharge in alpine catchments.

In mountain areas, water storage in form of snow and ice leads to a seasonal water redistribution. These snow-influenced water resources are particularly vulnerable to climate warming. For water resources management, the seasonal pattern is particularly important, as shifts to lower flows in summer combined with increased water needs could lead to water shortage for anthropogenic and ecosystem uses.

The magnitude of regime change will probably be influenced by the quantity and seasonality of dynamic groundwater storage in the catchment. However, the groundwater dynamics of alpine areas remains poorly understood and groundwater is often crudely parameterized in current catchment-scale discharge models. The research question is: How does dynamic groundwater storage evolution in alpine catchments influence discharge regime changes?

The main objectives of this project are: (1) to determine how geological, hydrogeological and geomorphological conditions control seasonal groundwater storage in alpine catchments, through quantification of dynamic groundwater storage in several alpine catchments, and (2) to investigate whether catchments with contrasting amounts of dynamic groundwater storage might have a different response to climate change and the possible reasons for this variability.

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Education and Positions held:

2017: Hydrogeologist for Evian Mineral Water (SAEME, France)

2016: Ph.D. at Université du Québec à Montréal (Canada) and Université Paris-Sud/Paris-Saclay (France)

2013 : M. Sc. at Ecole Normale Supérieure de Paris and Université Pierre et Marie Curie (France)

 

Teaching Responsabilities: 

B. Sc. Courses:  Measure and sampling technics in hydrogeology and groundwater tracing.

 

Publications: 

Arnoux M., Barbecot F., Gibert-Brunet E., Gibson J., Noret A. 2017. Impacts of changes in groundwater recharge on isotopic composition and geochemistry of seasonally ice-covered lakes: insights for sustainable management. Hydrology and Earth System Sciences 21:5875-5889. DOI: 10.5194/hess-21-5875-2017

Arnoux M., Barbecot F., Gibert-Brunet E., Guillon S., Gibson J., Noret A. 2017. Interactions between groundwater and seasonally ice-covered lakes: Using water stable isotopes and radon-222 multi-layer mass balance models. Hydrological Processes 31: 2566-2581. DOI: 10.1002/hyp.11206

Arnoux M., Barbecot F., Gibert-Brunet E., Gibson J., Rosa E., Noret A., Monvoisin G. 2017. Geochemical and isotopic mass balances of kettle lakes in southern Quebec (Canada) as tools to document spatiotemporal variations in groundwater quantity and quality. Environmental Earth Sciences 76:106. DOI: 10.1007/s12665-017-6410-6

 

Contact


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Office: E115

​Phone: +41 (0)32 718 26 36

 

marie.arnoux@unine.ch

 

Centre d'Hydroéologie et Géothermie (CHYN)

Emile-Argand 11

CH-2000 Neuchâtel