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Physical Controls on Methane Ebullition from Reservoirs and Lakes

2003; Geological Society of America; Volume: 9; Issue: 2 Linguagem: Inglês

10.2113/9.2.167

1558-9161

John Joyce,

Hydrocarbon exploration and reservoir analysis

Research Article| February 01, 2003 Physical Controls on Methane Ebullition from Reservoirs and Lakes JENNIFER JOYCE; JENNIFER JOYCE 1Department of Geology and Geophysics, 135 South 1460 East, Room 719, University of Utah, Salt Lake City, UT 84112 Search for other works by this author on: GSW Google Scholar PAUL W. JEWELL PAUL W. JEWELL 1Department of Geology and Geophysics, 135 South 1460 East, Room 719, University of Utah, Salt Lake City, UT 84112 Search for other works by this author on: GSW Google Scholar Environmental & Engineering Geoscience (2003) 9 (2): 167–178. https://doi.org/10.2113/9.2.167 Article history first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation JENNIFER JOYCE, PAUL W. JEWELL; Physical Controls on Methane Ebullition from Reservoirs and Lakes. Environmental & Engineering Geoscience 2003;; 9 (2): 167–178. doi: https://doi.org/10.2113/9.2.167 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyEnvironmental & Engineering Geoscience Search Advanced Search Abstract Understanding the nature and extent of methane production and flux in aquatic sediments has important geochemical, geotechnical, and global climate change implications. Quantifying these processes is difficult, because much of the methane flux in shallow sediments occurs via ebullition (bubbling). Direct observation of bubble formation is not possible, and bubbling is episodic and dependent upon a number of factors. Whereas previous studies have correlated methane flux with surface wind intensity, detailed study of Lake Gatun in Panama and Lago Loiza in Puerto Rico suggest that methane flux is more closely correlated with the shear stress in sediments caused by bottom currents. Bottom currents in turn are a complex function of wind, internal pressure gradients, and lake bathymetry. A simple physical model of bottom currents and sediments in these lakes suggests that most methane ebullition originated from the upper 10–20 cm of the sediment column. Our data reaffirm previous studies showing that ebullitive methane flux is minor in water deeper than ∼5 m. You do not have access to this content, please speak to your institutional administrator if you feel you should have access.