Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia

A study was performed to evaluate the current permafrost and groundwater conditions in the reclaimed floodplain of the Lena, one of the largest rivers in the permafrost zone. Data from ongoing hydrogeological monitoring were compared with earlier observations conducted during the reclamation process...

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Published in:Geosciences
Main Authors: Nadezhda Pavlova, Vasily Ogonerov, Marina Danzanova, Vladimir Popov
Format: Text
Language:English
Published: Multidisciplinary Digital Publishing Institute 2020
Subjects:
Online Access:https://doi.org/10.3390/geosciences10050192
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spelling ftmdpi:oai:mdpi.com:/2076-3263/10/5/192/ 2023-08-20T04:07:52+02:00 Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia Nadezhda Pavlova Vasily Ogonerov Marina Danzanova Vladimir Popov agris 2020-05-20 application/pdf https://doi.org/10.3390/geosciences10050192 EN eng Multidisciplinary Digital Publishing Institute Hydrogeology https://dx.doi.org/10.3390/geosciences10050192 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 10; Issue 5; Pages: 192 floodplain hydraulic fill water-bearing talik permafrost groundwater monitoring hydraulic connection flooding Text 2020 ftmdpi https://doi.org/10.3390/geosciences10050192 2023-07-31T23:31:42Z A study was performed to evaluate the current permafrost and groundwater conditions in the reclaimed floodplain of the Lena, one of the largest rivers in the permafrost zone. Data from ongoing hydrogeological monitoring were compared with earlier observations conducted during the reclamation process. The results demonstrate that the placement of dredged fill led to the development of suprapermafrost thaw zones (taliks). The anthropogenic taliks vary in thickness from 10 to 15 m in areas of buried bars to 20 m or more in the former locations of oxbow lakes. There is similarity in seasonal groundwater fluctuation patterns and response to river stage variations across the study area suggesting that a continuous aquifer connected to surface water. The connection with the river is most evident during the spring flood period. Two mechanisms of ground saturation are identified during this time. One is lateral seepage flow from the Lena River into the fill mass. The zone of its influence is limited to 150–170 m from the stream. The second is hydraulic pressure transmission from the river through the subchannel flow connected with the anthropogenic suprapermafrost aquifer. Its influence extends across the entire fill area. Continuous water movement at the base of the fill prevents permafrost aggradation from below. The study results should be taken into account when developing and implementing design and construction standards for engineering structures in the reclaimed floodplains of the permafrost zone. Text lena river permafrost Yakutsk MDPI Open Access Publishing Yakutsk Talik ENVELOPE(146.601,146.601,59.667,59.667) Geosciences 10 5 192
institution Open Polar
collection MDPI Open Access Publishing
op_collection_id ftmdpi
language English
topic floodplain
hydraulic fill
water-bearing talik
permafrost
groundwater
monitoring
hydraulic connection
flooding
spellingShingle floodplain
hydraulic fill
water-bearing talik
permafrost
groundwater
monitoring
hydraulic connection
flooding
Nadezhda Pavlova
Vasily Ogonerov
Marina Danzanova
Vladimir Popov
Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
topic_facet floodplain
hydraulic fill
water-bearing talik
permafrost
groundwater
monitoring
hydraulic connection
flooding
description A study was performed to evaluate the current permafrost and groundwater conditions in the reclaimed floodplain of the Lena, one of the largest rivers in the permafrost zone. Data from ongoing hydrogeological monitoring were compared with earlier observations conducted during the reclamation process. The results demonstrate that the placement of dredged fill led to the development of suprapermafrost thaw zones (taliks). The anthropogenic taliks vary in thickness from 10 to 15 m in areas of buried bars to 20 m or more in the former locations of oxbow lakes. There is similarity in seasonal groundwater fluctuation patterns and response to river stage variations across the study area suggesting that a continuous aquifer connected to surface water. The connection with the river is most evident during the spring flood period. Two mechanisms of ground saturation are identified during this time. One is lateral seepage flow from the Lena River into the fill mass. The zone of its influence is limited to 150–170 m from the stream. The second is hydraulic pressure transmission from the river through the subchannel flow connected with the anthropogenic suprapermafrost aquifer. Its influence extends across the entire fill area. Continuous water movement at the base of the fill prevents permafrost aggradation from below. The study results should be taken into account when developing and implementing design and construction standards for engineering structures in the reclaimed floodplains of the permafrost zone.
format Text
author Nadezhda Pavlova
Vasily Ogonerov
Marina Danzanova
Vladimir Popov
author_facet Nadezhda Pavlova
Vasily Ogonerov
Marina Danzanova
Vladimir Popov
author_sort Nadezhda Pavlova
title Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
title_short Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
title_full Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
title_fullStr Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
title_full_unstemmed Hydrogeology of Reclaimed Floodplain in A Permafrost Area, Yakutsk, Russia
title_sort hydrogeology of reclaimed floodplain in a permafrost area, yakutsk, russia
publisher Multidisciplinary Digital Publishing Institute
publishDate 2020
url https://doi.org/10.3390/geosciences10050192
op_coverage agris
long_lat ENVELOPE(146.601,146.601,59.667,59.667)
geographic Yakutsk
Talik
geographic_facet Yakutsk
Talik
genre lena river
permafrost
Yakutsk
genre_facet lena river
permafrost
Yakutsk
op_source Geosciences; Volume 10; Issue 5; Pages: 192
op_relation Hydrogeology
https://dx.doi.org/10.3390/geosciences10050192
op_rights https://creativecommons.org/licenses/by/4.0/
op_doi https://doi.org/10.3390/geosciences10050192
container_title Geosciences
container_volume 10
container_issue 5
container_start_page 192
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