Streamflow processes in an alpine permafrost catchment, tianshan, China
Abstract The Cirque Basin, Tianshan, China is characterized by steep slopes, coarse surficial deposits and a cold climate that maintains permafrost at shallow depths. These conditions exert strong influences on the streamflow processes. In late winter, freezing of the infiltrated meltwater from an u...
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crwiley:10.1002/ppp.3430050202 2024-06-02T08:08:02+00:00 Streamflow processes in an alpine permafrost catchment, tianshan, China Woo, Ming‐Ko Yang, Zhenniang Xia, Zhaojun Yang, Daqing 1994 http://dx.doi.org/10.1002/ppp.3430050202 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430050202 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430050202 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 5, issue 2, page 71-85 ISSN 1045-6740 1099-1530 journal-article 1994 crwiley https://doi.org/10.1002/ppp.3430050202 2024-05-03T11:27:54Z Abstract The Cirque Basin, Tianshan, China is characterized by steep slopes, coarse surficial deposits and a cold climate that maintains permafrost at shallow depths. These conditions exert strong influences on the streamflow processes. In late winter, freezing of the infiltrated meltwater from an uneven snow cover enables ground ice formation. This renders parts of the active layer impervious to seepage, and in the spring both surface and subsurface flows can occur to supply water to the stream. In summer, the coarse materials facilitate rapid infiltration and exfiltration. Where the channel slope is steep, as in the upper basin, infiltration results in a dry stream bed but deep percolation is prevented by a shallow frost table. Exfiltration prevails in the lower basin where the channel gradient is reduced, and streamflow increases rapidly within half a kilometre, from zero to its maximum values at the gauging station. Water balance analysis yields a high runoff ratio of 0.75 for this basin and this is comparable with other tundra areas. The streamflow processes observed in this basin should be applicable to other non‐polar alpine catchments. Article in Journal/Newspaper Ice permafrost Permafrost and Periglacial Processes Tundra Wiley Online Library Permafrost and Periglacial Processes 5 2 71 85 |
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Open Polar |
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Wiley Online Library |
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language |
English |
description |
Abstract The Cirque Basin, Tianshan, China is characterized by steep slopes, coarse surficial deposits and a cold climate that maintains permafrost at shallow depths. These conditions exert strong influences on the streamflow processes. In late winter, freezing of the infiltrated meltwater from an uneven snow cover enables ground ice formation. This renders parts of the active layer impervious to seepage, and in the spring both surface and subsurface flows can occur to supply water to the stream. In summer, the coarse materials facilitate rapid infiltration and exfiltration. Where the channel slope is steep, as in the upper basin, infiltration results in a dry stream bed but deep percolation is prevented by a shallow frost table. Exfiltration prevails in the lower basin where the channel gradient is reduced, and streamflow increases rapidly within half a kilometre, from zero to its maximum values at the gauging station. Water balance analysis yields a high runoff ratio of 0.75 for this basin and this is comparable with other tundra areas. The streamflow processes observed in this basin should be applicable to other non‐polar alpine catchments. |
format |
Article in Journal/Newspaper |
author |
Woo, Ming‐Ko Yang, Zhenniang Xia, Zhaojun Yang, Daqing |
spellingShingle |
Woo, Ming‐Ko Yang, Zhenniang Xia, Zhaojun Yang, Daqing Streamflow processes in an alpine permafrost catchment, tianshan, China |
author_facet |
Woo, Ming‐Ko Yang, Zhenniang Xia, Zhaojun Yang, Daqing |
author_sort |
Woo, Ming‐Ko |
title |
Streamflow processes in an alpine permafrost catchment, tianshan, China |
title_short |
Streamflow processes in an alpine permafrost catchment, tianshan, China |
title_full |
Streamflow processes in an alpine permafrost catchment, tianshan, China |
title_fullStr |
Streamflow processes in an alpine permafrost catchment, tianshan, China |
title_full_unstemmed |
Streamflow processes in an alpine permafrost catchment, tianshan, China |
title_sort |
streamflow processes in an alpine permafrost catchment, tianshan, china |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1002/ppp.3430050202 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.3430050202 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.3430050202 |
genre |
Ice permafrost Permafrost and Periglacial Processes Tundra |
genre_facet |
Ice permafrost Permafrost and Periglacial Processes Tundra |
op_source |
Permafrost and Periglacial Processes volume 5, issue 2, page 71-85 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.3430050202 |
container_title |
Permafrost and Periglacial Processes |
container_volume |
5 |
container_issue |
2 |
container_start_page |
71 |
op_container_end_page |
85 |
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1800753184360103936 |