Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan
Abstract Present‐day geomorphic processes, in a snowpatch hollow on an andesitic volcano (Gassan, 1984 m ASL; 38° 38′ N, 140° 02′ E) where late‐lying snow survives nearly 10 months every year, have been measured for several years. Although soil temperature data show a concentration of freeze‐thaw ac...
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crwiley:10.1002/ppp.412 2024-09-15T18:30:16+00:00 Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan Kariya, Yoshihiko 2002 http://dx.doi.org/10.1002/ppp.412 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.412 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.412 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Permafrost and Periglacial Processes volume 13, issue 2, page 107-116 ISSN 1045-6740 1099-1530 journal-article 2002 crwiley https://doi.org/10.1002/ppp.412 2024-08-27T04:30:16Z Abstract Present‐day geomorphic processes, in a snowpatch hollow on an andesitic volcano (Gassan, 1984 m ASL; 38° 38′ N, 140° 02′ E) where late‐lying snow survives nearly 10 months every year, have been measured for several years. Although soil temperature data show a concentration of freeze‐thaw activities in autumn, these fluctuations rarely drop to the effective temperature range for frost shattering. Wetting and drying rather than frost action is thought responsible for debris production which ranges from 2.12 to 49.68 g m −2 a −1 , equivalent to a rock surface retreat of 0.001 to 0.019 mm a −1 . Thawing of seasonal frost and saturation of soils induces frost creep and gelifluction: maximum values of surface velocity and depth of soil movement are 0.9 cm a −1 and 14 cm, respectively. Annually, slope lowering of 0.3 cm occurs in the pro‐nival and sub‐nival wash‐rill zones. In comparison with other snowpatch sites in the world, rates of soil movement and rock surface denudation are considerably lower at the study site, while fluvial action seems important. Copyright © 2002 John Wiley & Sons, Ltd. Article in Journal/Newspaper Permafrost and Periglacial Processes Wiley Online Library Permafrost and Periglacial Processes 13 2 107 116 |
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Abstract Present‐day geomorphic processes, in a snowpatch hollow on an andesitic volcano (Gassan, 1984 m ASL; 38° 38′ N, 140° 02′ E) where late‐lying snow survives nearly 10 months every year, have been measured for several years. Although soil temperature data show a concentration of freeze‐thaw activities in autumn, these fluctuations rarely drop to the effective temperature range for frost shattering. Wetting and drying rather than frost action is thought responsible for debris production which ranges from 2.12 to 49.68 g m −2 a −1 , equivalent to a rock surface retreat of 0.001 to 0.019 mm a −1 . Thawing of seasonal frost and saturation of soils induces frost creep and gelifluction: maximum values of surface velocity and depth of soil movement are 0.9 cm a −1 and 14 cm, respectively. Annually, slope lowering of 0.3 cm occurs in the pro‐nival and sub‐nival wash‐rill zones. In comparison with other snowpatch sites in the world, rates of soil movement and rock surface denudation are considerably lower at the study site, while fluvial action seems important. Copyright © 2002 John Wiley & Sons, Ltd. |
format |
Article in Journal/Newspaper |
author |
Kariya, Yoshihiko |
spellingShingle |
Kariya, Yoshihiko Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
author_facet |
Kariya, Yoshihiko |
author_sort |
Kariya, Yoshihiko |
title |
Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
title_short |
Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
title_full |
Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
title_fullStr |
Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
title_full_unstemmed |
Geomorphic processes at a snowpatch hollow on Gassan volcano, northern Japan |
title_sort |
geomorphic processes at a snowpatch hollow on gassan volcano, northern japan |
publisher |
Wiley |
publishDate |
2002 |
url |
http://dx.doi.org/10.1002/ppp.412 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1002%2Fppp.412 https://onlinelibrary.wiley.com/doi/pdf/10.1002/ppp.412 |
genre |
Permafrost and Periglacial Processes |
genre_facet |
Permafrost and Periglacial Processes |
op_source |
Permafrost and Periglacial Processes volume 13, issue 2, page 107-116 ISSN 1045-6740 1099-1530 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/ppp.412 |
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Permafrost and Periglacial Processes |
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13 |
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2 |
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107 |
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116 |
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1810471740207267840 |