Articles | Volume 15, issue 4
Ocean Sci., 15, 1055–1069, 2019
https://doi.org/10.5194/os-15-1055-2019
Ocean Sci., 15, 1055–1069, 2019
https://doi.org/10.5194/os-15-1055-2019

Research article 13 Aug 2019

Research article | 13 Aug 2019

High-resolution underwater laser spectrometer sensing provides new insights into methane distribution at an Arctic seepage site

Pär Jansson et al.

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Cited articles

Andreassen, K., Hubbard, A., Winsborrow, M., Patton, H., Vadakkepuliyambatta, S., Plaza-Faverola, A., Gudlaugsson, E., Serov, P., Deryabin, A., Mattingsdal, R., Mienert, J., and Bünz, S.: Massive blow-out craters formed by hydrate-controlled methane expulsion from the Arctic seafloor, Science, 356, 948–953, https://doi.org/10.1126/science.aal4500, 2017. 
Biastoch, A., Treude, T., Rüpke, L. H., Riebesell, U., Roth, C., Burwicz, E. B., Park, W., Latif, M., Böning, C. W., and Madec, G.: Rising Arctic Ocean temperatures cause gas hydrate destabilization and ocean acidification, Geophys. Res. Lett., 38, L08602, https://doi.org/10.1029/2011GL047222, 2011. 
Boetius, A. and Wenzhöfer, F.: Seafloor oxygen consumption fuelled by methane from cold seeps, Nat. Geosci., 6, 725–734, https://doi.org/10.1038/ngeo1926, 2013. 
Boulart, C., Prien, R., Chavagnac, V., and Dutasta, J.-P.: Sensing Dissolved Methane in Aquatic Environments: An Experiment in the Central Baltic Sea Using Surface Plasmon Resonance, Environ. Sci. Technol., 47, 8582–8590, https://doi.org/10.1021/es4011916, 2013. 
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Short summary
Methane seepage from the seafloor west of Svalbard was investigated with a fast-response membrane inlet laser spectrometer. The acquired data were in good agreement with traditional sparse discrete water sampling, subsequent gas chromatography, and with a new 2-D model based on echo-sounder data. However, the acquired high-resolution data revealed unprecedented details of the methane distribution, which highlights the need for high-resolution measurements for future climate studies.