Conferences - Seminars

  Tuesday 21 February 2017 12:15 - 13:15 GR C0 01

EESS talk on "Variability in methane emissions from lakes and reservoirs: the role of physics and biology"

By Dr Yves Prairie, visiting professor SBER & APHYS, UNESCO Chair in Global Environmental Change, Université du Québec, Montréal (Canada)

Short biography:
Yves Prairie is professor of limnology at the Université du Québec à Montréal where he holds a UNESCO Chair in Global Environmental Change. His research focuses on carbon cycling in aquatic ecosystems, ranging from gas exchange, carbon export from catchments, carbon sedimentation, and microbial transformation,  generally from an ecosystem perspective. He is particularly interested in the role played by inland waters on the global carbon budget. He is currently a visiting professor at EPFL working with Profs. Tom Battin and Johny Wuest.

Inland waters are now recognized as important sites of methane production and emissions, even at the global scale. However, the large variability observed both within and among systems has made it particularly difficult to obtain precise estimates of emissions such that the methane footprint to the atmosphere is rather poorly constrained. In this talk I will present some recent work on lakes and reservoirs attempting to accounting for this variability by modeling the physical and biological controls on the production and consumption mechanisms. These models were developed from several field campaigns designed to identify the main drivers of CH4 production, oxidation and spatial heterogeneity. These models can then serve as the basis for the upscaling of methane fluxes to entire regions.

Organization EESS - IIE

Contact Profs. A. Johny Wüest, APHYS and Tom Battin, SBER

Accessibility General public

Admittance Free

This event is internal