Frédéric Guérin

TL;DR: In this article, the authors confirm the significance of greenhouse gas emissions from tropical reservoir but stress the importance of considering all the gas pathways upstream and downstream of the dams and taking into account the reservoir age when upscaling emissions rates at the global scale.

TL;DR: In this article, the authors report dissolved carbon dioxide, methane and nitrous oxide concentrations from 12 rivers in sub-Saharan Africa, including seasonally resolved sampling at 39 sites, acquired between 2006 and 2014.

TL;DR: In this article, the authors measured simultaneously the methane (CH4) and carbon dioxide (CO2) surface concentrations and water-air fluxes by floating chambers (FC) in the Petit-Saut Reservoir (French Guiana) and its tidal river (Sinnamary River) downstream of the dam, during two field experiments in wet (May 2003) and dry season (December 2003).

TL;DR: In this paper, water-air fluxes were measured in three tropical reservoirs and their respective rivers downstream of the dams and the results showed that despite their relatively small surfaces, rivers downstream downstream of dams accounted for a significant fraction (9 − 33% for CH4 and 7 − 25% for CO2) of the emissions across the reservoir surfaces classically taken into account for reservoirs.

TL;DR: This paper proposes a simple approach to quantify the reservoir GHG footprint in terms of the net changes in GHG fluxes to the atmosphere induced by damming, that is, ‘what the atmosphere sees.’