NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN
The relevance of the research is caused by the need to develop a scientifically based approach to quantitative estimation of bubble transfer of methane and other gases based on acoustic techniques, which allow reliable estimate of methane flow from the bubble unloading areas by sound locators and su...
Published in: | Izvestiya Tomskogo Politekhnicheskogo Universiteta Inziniring Georesursov |
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Tomsk Polytechnic University
2019
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ftdoajarticles:oai:doaj.org/article:c248cfe701d34462a029cd2308a64098 2023-07-02T03:31:26+02:00 NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN 2019-04-01T00:00:00Z https://doi.org/10.18799/24131830/2018/11/218 https://doaj.org/article/c248cfe701d34462a029cd2308a64098 RU rus Tomsk Polytechnic University http://izvestiya.tpu.ru/archive/article/view/218 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 doi:10.18799/24131830/2018/11/218 2500-1019 2413-1830 https://doaj.org/article/c248cfe701d34462a029cd2308a64098 Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 329, Iss 11 (2019) Arctic acoustic estimation methane seep Laptev sea bubbles transport Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 article 2019 ftdoajarticles https://doi.org/10.18799/24131830/2018/11/218 2023-06-11T00:37:18Z The relevance of the research is caused by the need to develop a scientifically based approach to quantitative estimation of bubble transfer of methane and other gases based on acoustic techniques, which allow reliable estimate of methane flow from the bubble unloading areas by sound locators and submarine sonars. The main aim of the research is to investigate the possible application of an acoustical technique based on acoustic scattering in bubble plumes vs the acoustical technique based on calibration which was applied to quantify in situ sonar observations; to show that both techniques can be used for a quantification of methane ebullition in the bottom-water column system. Objects: gas flares or seeps – the emanations of gas in the form of rising bubbles from the seabottom, which form stable regions of their increased concentration in the water column. Methods: modification of acoustical techniques based on acoustic scattering in bubble plumes and on ist calibration which was applied by authors to quantify in situ single sonar observations. Results. We demonstrate a first attempt to use acoustical techniques based on (1) acoustic scattering in bubble plumes vs acoustical technique based on (2) calibration which was applied to quantify in situ sonar observations. It has been shown that both techniques can be used for a quatitative express-evaluation of methane ebullition in the bottom-water system in any aquatic ecosystem including seas, lakes, and rivers, while the first acoustical technique gives the bubble efflux values ~20 % lower then the second acoustical technique. Article in Journal/Newspaper Arctic Arctic Ocean laptev Laptev Sea Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Laptev Sea Izvestiya Tomskogo Politekhnicheskogo Universiteta Inziniring Georesursov 329 11 153 167 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
Arctic acoustic estimation methane seep Laptev sea bubbles transport Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
spellingShingle |
Arctic acoustic estimation methane seep Laptev sea bubbles transport Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
topic_facet |
Arctic acoustic estimation methane seep Laptev sea bubbles transport Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
description |
The relevance of the research is caused by the need to develop a scientifically based approach to quantitative estimation of bubble transfer of methane and other gases based on acoustic techniques, which allow reliable estimate of methane flow from the bubble unloading areas by sound locators and submarine sonars. The main aim of the research is to investigate the possible application of an acoustical technique based on acoustic scattering in bubble plumes vs the acoustical technique based on calibration which was applied to quantify in situ sonar observations; to show that both techniques can be used for a quantification of methane ebullition in the bottom-water column system. Objects: gas flares or seeps – the emanations of gas in the form of rising bubbles from the seabottom, which form stable regions of their increased concentration in the water column. Methods: modification of acoustical techniques based on acoustic scattering in bubble plumes and on ist calibration which was applied by authors to quantify in situ single sonar observations. Results. We demonstrate a first attempt to use acoustical techniques based on (1) acoustic scattering in bubble plumes vs acoustical technique based on (2) calibration which was applied to quantify in situ sonar observations. It has been shown that both techniques can be used for a quatitative express-evaluation of methane ebullition in the bottom-water system in any aquatic ecosystem including seas, lakes, and rivers, while the first acoustical technique gives the bubble efflux values ~20 % lower then the second acoustical technique. |
format |
Article in Journal/Newspaper |
title |
NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
title_short |
NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
title_full |
NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
title_fullStr |
NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
title_full_unstemmed |
NEW ACOUSTICAL TECHNIQUE TO QUANTIFY METHANE EBULLITION IN SEDIMENT WATER COLUMN: A CASE STUDY IN THE LAPTEV SEA, THE ARCTIC OCEAN |
title_sort |
new acoustical technique to quantify methane ebullition in sediment water column: a case study in the laptev sea, the arctic ocean |
publisher |
Tomsk Polytechnic University |
publishDate |
2019 |
url |
https://doi.org/10.18799/24131830/2018/11/218 https://doaj.org/article/c248cfe701d34462a029cd2308a64098 |
geographic |
Arctic Arctic Ocean Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Laptev Sea |
genre |
Arctic Arctic Ocean laptev Laptev Sea |
genre_facet |
Arctic Arctic Ocean laptev Laptev Sea |
op_source |
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 329, Iss 11 (2019) |
op_relation |
http://izvestiya.tpu.ru/archive/article/view/218 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 doi:10.18799/24131830/2018/11/218 2500-1019 2413-1830 https://doaj.org/article/c248cfe701d34462a029cd2308a64098 |
op_doi |
https://doi.org/10.18799/24131830/2018/11/218 |
container_title |
Izvestiya Tomskogo Politekhnicheskogo Universiteta Inziniring Georesursov |
container_volume |
329 |
container_issue |
11 |
container_start_page |
153 |
op_container_end_page |
167 |
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1770270821018763264 |