Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia
Abstract Yakutsk, the largest city in the continuous permafrost zone, is used as a case study for examining natural and modified environmental conditions that control the character and intensity of water-logging in the active layer in relation to topography and drainage. Interpretation of aerial pho...
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crioppubl:10.1088/1757-899x/753/4/042091 2024-06-02T08:13:07+00:00 Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia Pavlova, N A Danzanova, M V 2020 http://dx.doi.org/10.1088/1757-899x/753/4/042091 https://iopscience.iop.org/article/10.1088/1757-899X/753/4/042091/pdf https://iopscience.iop.org/article/10.1088/1757-899X/753/4/042091 unknown IOP Publishing http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining IOP Conference Series: Materials Science and Engineering volume 753, issue 4, page 042091 ISSN 1757-8981 1757-899X journal-article 2020 crioppubl https://doi.org/10.1088/1757-899x/753/4/042091 2024-05-07T14:01:02Z Abstract Yakutsk, the largest city in the continuous permafrost zone, is used as a case study for examining natural and modified environmental conditions that control the character and intensity of water-logging in the active layer in relation to topography and drainage. Interpretation of aerial photography and satellite imagery was carried out, along with analysis of drilling and long-term hydrogeochemical monitoring data, in order to determine the response of natural landscapes to human impacts and to assess the probability of suprapermafrost cryopeg development with city expansion. The role of vegetation cover in controlling the temperature and moisture regime of the active layer was examined. Results suggest that the neighborhoods with chaotic development patterns and impeded drainage have high risk of cryopeg formation. Puddle water in these areas is characterized by high dissolved-solids levels (2-4 g/dm 3 ). As puddles evaporate, salts settle on the underlying soil surface and then migrate into the active layer, increasing its salinity (up to 1.3%). Suprapermafrost water that forms in these soils has dissolved-solids concentrations as high as 8–10 g/dm 3 . Continuous supply of dissolved solids and their cryogenic concentration promote the formation of hydrochemical taliks and cryopegs. Remote sensing and mathematical modeling demonstrate that changes to the soil moisture and hydrogeochemical regimes cause forest degradation, which, in turn, promotes deeper seasonal thaw. This provides favorable conditions for the formation of subaerial water-bearing taliks and later anthropogenic cryopegs Article in Journal/Newspaper permafrost Yakutia Yakutsk IOP Publishing Yakutsk IOP Conference Series: Materials Science and Engineering 753 042091 |
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Abstract Yakutsk, the largest city in the continuous permafrost zone, is used as a case study for examining natural and modified environmental conditions that control the character and intensity of water-logging in the active layer in relation to topography and drainage. Interpretation of aerial photography and satellite imagery was carried out, along with analysis of drilling and long-term hydrogeochemical monitoring data, in order to determine the response of natural landscapes to human impacts and to assess the probability of suprapermafrost cryopeg development with city expansion. The role of vegetation cover in controlling the temperature and moisture regime of the active layer was examined. Results suggest that the neighborhoods with chaotic development patterns and impeded drainage have high risk of cryopeg formation. Puddle water in these areas is characterized by high dissolved-solids levels (2-4 g/dm 3 ). As puddles evaporate, salts settle on the underlying soil surface and then migrate into the active layer, increasing its salinity (up to 1.3%). Suprapermafrost water that forms in these soils has dissolved-solids concentrations as high as 8–10 g/dm 3 . Continuous supply of dissolved solids and their cryogenic concentration promote the formation of hydrochemical taliks and cryopegs. Remote sensing and mathematical modeling demonstrate that changes to the soil moisture and hydrogeochemical regimes cause forest degradation, which, in turn, promotes deeper seasonal thaw. This provides favorable conditions for the formation of subaerial water-bearing taliks and later anthropogenic cryopegs |
format |
Article in Journal/Newspaper |
author |
Pavlova, N A Danzanova, M V |
spellingShingle |
Pavlova, N A Danzanova, M V Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
author_facet |
Pavlova, N A Danzanova, M V |
author_sort |
Pavlova, N A |
title |
Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
title_short |
Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
title_full |
Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
title_fullStr |
Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
title_full_unstemmed |
Risk of Anthropogenic Cryopeg Formation in Urban Areas in Central Yakutia |
title_sort |
risk of anthropogenic cryopeg formation in urban areas in central yakutia |
publisher |
IOP Publishing |
publishDate |
2020 |
url |
http://dx.doi.org/10.1088/1757-899x/753/4/042091 https://iopscience.iop.org/article/10.1088/1757-899X/753/4/042091/pdf https://iopscience.iop.org/article/10.1088/1757-899X/753/4/042091 |
geographic |
Yakutsk |
geographic_facet |
Yakutsk |
genre |
permafrost Yakutia Yakutsk |
genre_facet |
permafrost Yakutia Yakutsk |
op_source |
IOP Conference Series: Materials Science and Engineering volume 753, issue 4, page 042091 ISSN 1757-8981 1757-899X |
op_rights |
http://creativecommons.org/licenses/by/3.0/ https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1757-899x/753/4/042091 |
container_title |
IOP Conference Series: Materials Science and Engineering |
container_volume |
753 |
container_start_page |
042091 |
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1800759771033239552 |