Articles | Volume 11, issue 3
https://doi.org/10.5194/tc-11-1333-2017
https://doi.org/10.5194/tc-11-1333-2017
Research article
 | 
09 Jun 2017
Research article |  | 09 Jun 2017

Sonar gas flux estimation by bubble insonification: application to methane bubble flux from seep areas in the outer Laptev Sea

Ira Leifer, Denis Chernykh, Natalia Shakhova, and Igor Semiletov

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Cited articles

Archer, D. and Buffett, B.: Time-dependent response of the global ocean clathrate reservoir to climatic and anthropogenic forcing, Geochem. Geophys. Geosyst., 6, Q03002, https://doi.org/10.1029/2004GC000854, 2005.
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Biastoch, A., Treude, T., Rupke, L. H., Riebesell, U., Roth, C., Burwicz, E. B., Park, W., Latif, M., Boning, C. w., Madec, G., and Wallman, K.: Rising Arctic Ocean temperatures cause gas hydrate destabilization and ocean acidification, Geophys. Res. Lett., 38, L08602, https://doi.org/10.1029/2011GL047222, 2011.
Clark, J. F., Washburn, L., Hornafius, J. S., and Luyendyk, B. P.: Dissolved hydrocarbon flux from natural marine seeps to the southern California Bight, J. Geophys. Res., 105, 11509–11522, https://doi.org/10.1029/2000JC000259, 2000.
Clark, J. F., Schwager, K., and Washburn, L.: Variability of gas composition and flux intensity in natural marine hydrocarbon seeps, New Energy Development and Technology (EDT) Working Paper 008, UCEI, 15 pp., 2005.
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Short summary
Vast Arctic methane deposits may alter global climate and require remote sensing (RS) to map. Sonar has great promise, but quantitative inversion based on theory is challenged by multiple bubble acoustical scattering in plumes. We demonstrate use of a real-world in situ bubble plume calibration using a bubble model to correct for differences in the calibration and seep plumes. Spatial seep sonar maps were then used to improve understanding of subsurface geologic controls.
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