Synoptic Identification of Greenhouse Gas Sources and Sinks in Lake Léman (bibtex)
by A. Mallios, O. Pizarro, J. S. Arey, S. Samanipour, B. De Mol, N. Hurtós, M. Johnson-Roberson, D. G. Dansereau, L. Toohey, U. Lemmin, R. Camilli
Abstract:
In the summer of 2011 as part of the Elemo project our team investigated greenhouse gas distributions in Lake Léman. For this program two MIR human occupied submersibles were equipped with chemical, optical, and acoustic sensors to record water column parameters, (principally methane, oxygen, carbon dioxide, temperature, and salinity) as well as lake bed structure. Data collected from a total of 21 submersible dive operations completed through the entire depth range of the lake, from surface to 310 meters depth, revealed chemically and morphologically heterogeneous regions with carbon dioxide and methane concentrations varying by more than 10 and 100 fold, respectively. Georeferencing of the chemical and imagery data with synchronized submersible navigation position estimates indicate at least two distinct greenhouse gas source locations, at Vidy Bay and the Rhône Delta. The locations of these sources and the characteristic bedforms at these sites suggest that methane and carbon dioxide inputs may undergo seasonally variable transport within the water column, causing the lake to serve as a net sink as well as a periodic re-emitter of methane and carbon dioxide.
Reference:
Synoptic Identification of Greenhouse Gas Sources and Sinks in Lake Léman (A. Mallios, O. Pizarro, J. S. Arey, S. Samanipour, B. De Mol, N. Hurtós, M. Johnson-Roberson, D. G. Dansereau, L. Toohey, U. Lemmin, R. Camilli), In ASLO Aquatic Sciences Meeting, 2015.
Bibtex Entry:
@inproceedings{Mallios:2015aa,
	Abstract = {In the summer of 2011 as part of the Elemo project our team investigated greenhouse gas distributions in Lake L\'{e}man. For this program two MIR human occupied submersibles were equipped with chemical, optical, and acoustic sensors to record water column parameters, (principally methane, oxygen, carbon dioxide, temperature, and salinity) as well as lake bed structure. Data collected from a total of 21 submersible dive operations completed through the entire depth range of the lake, from surface to 310 meters depth, revealed chemically and morphologically heterogeneous regions with carbon dioxide and methane concentrations varying by more than 10 and 100 fold, respectively. Georeferencing of the chemical and imagery data with synchronized submersible navigation position estimates indicate at least two distinct greenhouse gas source locations, at Vidy Bay and the Rh\^{o}ne Delta. The locations of these sources and the characteristic bedforms at these sites suggest that methane and carbon dioxide inputs may undergo seasonally variable transport within the water column, causing the lake to serve as a net sink as well as a periodic re-emitter of methane and carbon dioxide.},
	Address = {Granada, Spain},
	Author = {Mallios, A. and Pizarro, O. and Arey, J. S. and Samanipour, S. and De Mol, B. and Hurt\'{o}s, N. and Johnson-Roberson, M. and Dansereau, D. G. and Toohey, L. and Lemmin, U. and Camilli, R.},
	Booktitle = {ASLO Aquatic Sciences Meeting},
	Date-Added = {2015-05-03 12:33:21 +0000},
	Date-Modified = {2015-11-29 16:34:14 +0000},
	Keywords = {post},
	Title = {{Synoptic Identification of Greenhouse Gas Sources and Sinks in Lake L\'{e}man}},
	Year = {2015}}
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