Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/18649
Título: Methane release below a tropical hydroelectric dam
Autor: Kemenes, Alexandre
Forsberg, Bruce Rider
Melack, John M.
Palavras-chave: Degassing
Earth Atmosphere
Flow Of Gases
Gas Emissions
Methane
Hydroelectric Dams
Methane Emissions
Tropical Reservoirs
Tropics
Carbon Emission
Dam
Hydroelectric Power Plant
Methane
Reservoir
Amazon Basin
South America
Data do documento: 2007
Revista: Geophysical Research Letters
Encontra-se em: Volume 34, Número 12
Abstract: Tropical reservoirs upstream from hydroelectric dams are known to release significant amounts of methane to the atmosphere. Here we demonstrate that methane emissions downstream from hydroelectric dams can also be large. Emissions of CH4 downstream of Balbina reservoir in the central Amazon basin (Brazil) were calculated from regular measurements of degassing in the outflow of the turbines and downstream diffusive losses. Annual emissions from the reservoir surface and downstream from the dam were 34 and 39 Gg C, respectively. The downstream emission alone represented the equivalent of 3% of all methane released from central Amazon floodplain. Copyright 2007 by the American Geophysical Union.
DOI: 10.1029/2007GL029479
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