Methane accumulation and oxidation under-ice in various lakes in Quebec

Amélie Marie Corinne Séchaud
2018
Student project

Les lacs, en tant que grands émetteurs de méthane (CH4) dans l'atmosphère, sont d'importants composants du cycle global du carbone. Malgré le comportement saisonnier marquée du méthane, peu de choses sont connues sur les processus hivernaux régulant le méthane dans les lacs couverts de glace. Ainsi, nous évaluons l'étendue de l'accumulation et l'oxydation du méthane dans 10 lacs gelées au Sud-Est du Québec, chaque mois entre janvier et mars 2018. Pour cela, nous examinons à la fois temporellement et verticalement les variations de concentration et signature isotopique du méthane, ainsi que les caractéristiques physiques et chimiques des lacs. Nous avons observé des concentrations de méthane relativement faibles (

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Amélie Marie Corinne Séchaud
2018
Student project

Abstract

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https://infoscience.epfl.ch/record/268236?ln=en

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