Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost
The relevance of the paper is caused by the need to develop methodological issues of using mathematical modeling and ultrahigh resolution satellite imagery to assess the accumulation of methane in small thermokarst lakes in the permafrost zone, which are considered as the most active sources of meth...
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Tomsk Polytechnic University
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ftdoajarticles:oai:doaj.org/article:5a2a9ca3285c4695957ae2b51618496a 2023-06-18T03:39:38+02:00 Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost Yury Polishchuk Vladimir Polishchuk Natalia Bryksina Oleg Pokrovsky Sergey Kirpotin Liudmila Shirokova 2019-05-01T00:00:00Z https://doaj.org/article/5a2a9ca3285c4695957ae2b51618496a RU rus Tomsk Polytechnic University http://izvestiya-tpu.ru/archive/article/view/1536 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 2500-1019 2413-1830 https://doaj.org/article/5a2a9ca3285c4695957ae2b51618496a Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 326, Iss 2 (2019) permafrost geoinformation systems satellite imagies climate changing mathematical modeling Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 article 2019 ftdoajarticles 2023-06-04T00:32:45Z The relevance of the paper is caused by the need to develop methodological issues of using mathematical modeling and ultrahigh resolution satellite imagery to assess the accumulation of methane in small thermokarst lakes in the permafrost zone, which are considered as the most active sources of methane emissions to the atmosphere in the Arctic and Subarctic regions under global warming of recent decades. The main aim of the study is to develop methodological issues of assessing the amount of methane accumulation in thermokarst lakes in the permafrost, based on mathematical modeling and ultrahigh resolution satellite images. Methods: remote sensing of thermokarst lakes fields, including small lakes, using satellite images of high and very high spatial resolution and techniques of geographic information systems for the analysis of satellite images, the methods of mathematical modeling of the spatial structure of the thermokarst lakes fields in permafrost landscapes, methods of biogeochemical studies of water bodies to determine the concentration of methane. The results. On the basis of biogeochemical studies the authors have determined that methane concentration in small thermokarst lakes (with area less than 200-250 m2 ) is on average about 13 times higher than its concentration in water of lakes, which are more than 250 m2 . Based on the remote research data on high resolution images the authors defined the parameters of the model that allows calculating fields of thermokarst lakes in the conditions of permafrost. The authors developed and described the procedure for determining methane accumulation volumes in thermokarst lakes located in a particular territory of the permafrost zone. Article in Journal/Newspaper Arctic Global warming permafrost Subarctic Thermokarst Siberia Directory of Open Access Journals: DOAJ Articles Arctic |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
permafrost geoinformation systems satellite imagies climate changing mathematical modeling Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
spellingShingle |
permafrost geoinformation systems satellite imagies climate changing mathematical modeling Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Yury Polishchuk Vladimir Polishchuk Natalia Bryksina Oleg Pokrovsky Sergey Kirpotin Liudmila Shirokova Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
topic_facet |
permafrost geoinformation systems satellite imagies climate changing mathematical modeling Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
description |
The relevance of the paper is caused by the need to develop methodological issues of using mathematical modeling and ultrahigh resolution satellite imagery to assess the accumulation of methane in small thermokarst lakes in the permafrost zone, which are considered as the most active sources of methane emissions to the atmosphere in the Arctic and Subarctic regions under global warming of recent decades. The main aim of the study is to develop methodological issues of assessing the amount of methane accumulation in thermokarst lakes in the permafrost, based on mathematical modeling and ultrahigh resolution satellite images. Methods: remote sensing of thermokarst lakes fields, including small lakes, using satellite images of high and very high spatial resolution and techniques of geographic information systems for the analysis of satellite images, the methods of mathematical modeling of the spatial structure of the thermokarst lakes fields in permafrost landscapes, methods of biogeochemical studies of water bodies to determine the concentration of methane. The results. On the basis of biogeochemical studies the authors have determined that methane concentration in small thermokarst lakes (with area less than 200-250 m2 ) is on average about 13 times higher than its concentration in water of lakes, which are more than 250 m2 . Based on the remote research data on high resolution images the authors defined the parameters of the model that allows calculating fields of thermokarst lakes in the conditions of permafrost. The authors developed and described the procedure for determining methane accumulation volumes in thermokarst lakes located in a particular territory of the permafrost zone. |
format |
Article in Journal/Newspaper |
author |
Yury Polishchuk Vladimir Polishchuk Natalia Bryksina Oleg Pokrovsky Sergey Kirpotin Liudmila Shirokova |
author_facet |
Yury Polishchuk Vladimir Polishchuk Natalia Bryksina Oleg Pokrovsky Sergey Kirpotin Liudmila Shirokova |
author_sort |
Yury Polishchuk |
title |
Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
title_short |
Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
title_full |
Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
title_fullStr |
Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
title_full_unstemmed |
Methodical issues of evaluating methane capacity in small thermokarst lakes of Western Siberia permafrost |
title_sort |
methodical issues of evaluating methane capacity in small thermokarst lakes of western siberia permafrost |
publisher |
Tomsk Polytechnic University |
publishDate |
2019 |
url |
https://doaj.org/article/5a2a9ca3285c4695957ae2b51618496a |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Global warming permafrost Subarctic Thermokarst Siberia |
genre_facet |
Arctic Global warming permafrost Subarctic Thermokarst Siberia |
op_source |
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 326, Iss 2 (2019) |
op_relation |
http://izvestiya-tpu.ru/archive/article/view/1536 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 2500-1019 2413-1830 https://doaj.org/article/5a2a9ca3285c4695957ae2b51618496a |
_version_ |
1769004348508995584 |