Lake size-distribution in cryolithozone based on satellite images of medium and high resolution
Relevance of the research is caused by the need to determine the kind of law of lake size-distribution for modeling and predicting the dynamics of thermokarst lakes fields and methane reserves in them in vast areas of the Arctic and subarctic zones in Siberia and other regions of the world. The main...
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Tomsk Polytechnic University
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ftdoajarticles:oai:doaj.org/article:26f11f84dd1f4473a4dec84efef3a01c 2023-06-18T03:39:44+02:00 Lake size-distribution in cryolithozone based on satellite images of medium and high resolution Yury Mikhailovich Polishchuk Alexander Nikolaevich Bogdanov Vladimir Yurjevich Polishchuk 2018-04-01T00:00:00Z https://doaj.org/article/26f11f84dd1f4473a4dec84efef3a01c RU rus Tomsk Polytechnic University http://izvestiya-tpu.ru/archive/article/view/1996 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 2500-1019 2413-1830 https://doaj.org/article/26f11f84dd1f4473a4dec84efef3a01c Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 329, Iss 3 (2018) permafrost geoinformation systems space images histograms of lake size-distribution lognormal distribution law Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 article 2018 ftdoajarticles 2023-06-04T00:32:40Z Relevance of the research is caused by the need to determine the kind of law of lake size-distribution for modeling and predicting the dynamics of thermokarst lakes fields and methane reserves in them in vast areas of the Arctic and subarctic zones in Siberia and other regions of the world. The main aim of the research is to determine the kind of law of thermokarst lake size-distribution in the cryolithozone of Western Siberia in a wide range of their sizes on the basis of a synthesized histogram of lake distributions obtained from medium and high-resolution space images. Methods: remote methods of studying the fields of thermokarst lakes using satellite imagery; method of test (key) sites; method for determining zones of active thermokarst from satellite imagery; methods of geoinformation systems for spatial analysis of data on thermokarst lakes derived from satellite imagery; statistical methods in determining the kind of distribution law of random variables from empirical data using the Pearson criterion. Results. The paper considers briefly the methodological issues of synthesizing two histograms of the lake size-distribution, one of which is obtained from mid-resolution space images, another one - from high-resolution imagery on a limited set of test sites in the study area. The authors have used the images of the average resolution of LandSat-8 and high-resolution images of Canopus-V, BKA and Alos to construct histograms. Remote studies on high resolution images were carried out on 66 test sites, located fairly evenly in the territory of the cryolithozone of Western Siberia. As a result, the authors obtained the synthesized histogram of lake size-distribution in a very wide range of their sizes from 50 m2to 20000 hectares. Statistical analysis showed that the empirical distribution of lakes by area, according to the Pearson criterion, corresponds to the lognormal distribution law. The authors determined the parameters of the lognormal law of lake areas distribution by empirical data. Article in Journal/Newspaper Arctic permafrost Subarctic Thermokarst Siberia Directory of Open Access Journals: DOAJ Articles Arctic Canopus ENVELOPE(161.517,161.517,-77.550,-77.550) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
Russian |
topic |
permafrost geoinformation systems space images histograms of lake size-distribution lognormal distribution law Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
spellingShingle |
permafrost geoinformation systems space images histograms of lake size-distribution lognormal distribution law Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 Yury Mikhailovich Polishchuk Alexander Nikolaevich Bogdanov Vladimir Yurjevich Polishchuk Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
topic_facet |
permafrost geoinformation systems space images histograms of lake size-distribution lognormal distribution law Engineering geology. Rock mechanics. Soil mechanics. Underground construction TA703-712 |
description |
Relevance of the research is caused by the need to determine the kind of law of lake size-distribution for modeling and predicting the dynamics of thermokarst lakes fields and methane reserves in them in vast areas of the Arctic and subarctic zones in Siberia and other regions of the world. The main aim of the research is to determine the kind of law of thermokarst lake size-distribution in the cryolithozone of Western Siberia in a wide range of their sizes on the basis of a synthesized histogram of lake distributions obtained from medium and high-resolution space images. Methods: remote methods of studying the fields of thermokarst lakes using satellite imagery; method of test (key) sites; method for determining zones of active thermokarst from satellite imagery; methods of geoinformation systems for spatial analysis of data on thermokarst lakes derived from satellite imagery; statistical methods in determining the kind of distribution law of random variables from empirical data using the Pearson criterion. Results. The paper considers briefly the methodological issues of synthesizing two histograms of the lake size-distribution, one of which is obtained from mid-resolution space images, another one - from high-resolution imagery on a limited set of test sites in the study area. The authors have used the images of the average resolution of LandSat-8 and high-resolution images of Canopus-V, BKA and Alos to construct histograms. Remote studies on high resolution images were carried out on 66 test sites, located fairly evenly in the territory of the cryolithozone of Western Siberia. As a result, the authors obtained the synthesized histogram of lake size-distribution in a very wide range of their sizes from 50 m2to 20000 hectares. Statistical analysis showed that the empirical distribution of lakes by area, according to the Pearson criterion, corresponds to the lognormal distribution law. The authors determined the parameters of the lognormal law of lake areas distribution by empirical data. |
format |
Article in Journal/Newspaper |
author |
Yury Mikhailovich Polishchuk Alexander Nikolaevich Bogdanov Vladimir Yurjevich Polishchuk |
author_facet |
Yury Mikhailovich Polishchuk Alexander Nikolaevich Bogdanov Vladimir Yurjevich Polishchuk |
author_sort |
Yury Mikhailovich Polishchuk |
title |
Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
title_short |
Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
title_full |
Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
title_fullStr |
Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
title_full_unstemmed |
Lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
title_sort |
lake size-distribution in cryolithozone based on satellite images of medium and high resolution |
publisher |
Tomsk Polytechnic University |
publishDate |
2018 |
url |
https://doaj.org/article/26f11f84dd1f4473a4dec84efef3a01c |
long_lat |
ENVELOPE(161.517,161.517,-77.550,-77.550) |
geographic |
Arctic Canopus |
geographic_facet |
Arctic Canopus |
genre |
Arctic permafrost Subarctic Thermokarst Siberia |
genre_facet |
Arctic permafrost Subarctic Thermokarst Siberia |
op_source |
Известия Томского политехнического университета: Инжиниринг георесурсов, Vol 329, Iss 3 (2018) |
op_relation |
http://izvestiya-tpu.ru/archive/article/view/1996 https://doaj.org/toc/2500-1019 https://doaj.org/toc/2413-1830 2500-1019 2413-1830 https://doaj.org/article/26f11f84dd1f4473a4dec84efef3a01c |
_version_ |
1769004443119910912 |