Permafrost and groundwater conditions, Huola river basin, northeast China

Abstract Permafrost and geohydrological investigations in a small basin in northeast China indicate that permafrost affects both the depth at which groundwater occurs and its artesian pressure. Artesian flow in the basin is common, and artesian head may be as much as 10 m above ground surface. The t...

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Published in:Permafrost and Periglacial Processes
Main Author: Wang, Baolai
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1990
Subjects:
Ice
Online Access:http://dx.doi.org/10.1002/ppp.3430010106
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430010106
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430010106
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spelling crwiley:10.1002/ppp.3430010106 2024-09-15T18:11:27+00:00 Permafrost and groundwater conditions, Huola river basin, northeast China Wang, Baolai 1990 http://dx.doi.org/10.1002/ppp.3430010106 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430010106 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430010106 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 1, issue 1, page 45-52 ISSN 1045-6740 1099-1530 journal-article 1990 crwiley https://doi.org/10.1002/ppp.3430010106 2024-07-30T04:18:47Z Abstract Permafrost and geohydrological investigations in a small basin in northeast China indicate that permafrost affects both the depth at which groundwater occurs and its artesian pressure. Artesian flow in the basin is common, and artesian head may be as much as 10 m above ground surface. The thickness of permafrost bears a close relationship to groundwater discharge (i.e. artesian flow rate), since a number of boreholes indicate that the greater the discharge, the thinner the permafrost. Over time the average rate of artesian flow from the boreholes decreases. The duration of flow depends on the rate of artesian flow, and permafrost temperature and thickness. Long‐term observations in areas where the permafrost is 70 m thick and has a mean annual ground temperature of −2.5°C indicate that if flow rate is larger than 0.8 l/s, flow continues for an indefinite period of time, but that if flow is less than 0.6 l/s, flow stops shortly. The difference in permafrost thickness, caused by the differential development of fractures and associated artesian head, may be as great as 50 m. Massive ground ice, with a thickness of more than 20 m, occurs in some boreholes at depth and is probably intrusive in nature. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 1 1 45 52
institution Open Polar
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language English
description Abstract Permafrost and geohydrological investigations in a small basin in northeast China indicate that permafrost affects both the depth at which groundwater occurs and its artesian pressure. Artesian flow in the basin is common, and artesian head may be as much as 10 m above ground surface. The thickness of permafrost bears a close relationship to groundwater discharge (i.e. artesian flow rate), since a number of boreholes indicate that the greater the discharge, the thinner the permafrost. Over time the average rate of artesian flow from the boreholes decreases. The duration of flow depends on the rate of artesian flow, and permafrost temperature and thickness. Long‐term observations in areas where the permafrost is 70 m thick and has a mean annual ground temperature of −2.5°C indicate that if flow rate is larger than 0.8 l/s, flow continues for an indefinite period of time, but that if flow is less than 0.6 l/s, flow stops shortly. The difference in permafrost thickness, caused by the differential development of fractures and associated artesian head, may be as great as 50 m. Massive ground ice, with a thickness of more than 20 m, occurs in some boreholes at depth and is probably intrusive in nature.
format Article in Journal/Newspaper
author Wang, Baolai
spellingShingle Wang, Baolai
Permafrost and groundwater conditions, Huola river basin, northeast China
author_facet Wang, Baolai
author_sort Wang, Baolai
title Permafrost and groundwater conditions, Huola river basin, northeast China
title_short Permafrost and groundwater conditions, Huola river basin, northeast China
title_full Permafrost and groundwater conditions, Huola river basin, northeast China
title_fullStr Permafrost and groundwater conditions, Huola river basin, northeast China
title_full_unstemmed Permafrost and groundwater conditions, Huola river basin, northeast China
title_sort permafrost and groundwater conditions, huola river basin, northeast china
publisher Wiley
publishDate 1990
url http://dx.doi.org/10.1002/ppp.3430010106
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430010106
https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430010106
genre Ice
permafrost
Permafrost and Periglacial Processes
genre_facet Ice
permafrost
Permafrost and Periglacial Processes
op_source Permafrost and Periglacial Processes
volume 1, issue 1, page 45-52
ISSN 1045-6740 1099-1530
op_rights http://onlinelibrary.wiley.com/termsAndConditions#vor
op_doi https://doi.org/10.1002/ppp.3430010106
container_title Permafrost and Periglacial Processes
container_volume 1
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container_start_page 45
op_container_end_page 52
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