Debris flows originating in the mountain cryosphere under a changing climate: A review
Debris flows originating in the mountain cryosphere (DFMC) are one of the most globally important, widely distributed mass flows (and natural geohazards) in mountain areas with a high altitude and/or high latitude. This is particularly the case in high mountain areas that have been undergoing rapid...
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crsagepubl:10.1177/0309133320961705 2024-09-15T18:11:42+00:00 Debris flows originating in the mountain cryosphere under a changing climate: A review Yu, Guo-An Yao, Weiwei Huang, He Qing Liu, Zhaofei National Natural Science Foundation of China national basic research program of china 2020 http://dx.doi.org/10.1177/0309133320961705 http://journals.sagepub.com/doi/pdf/10.1177/0309133320961705 http://journals.sagepub.com/doi/full-xml/10.1177/0309133320961705 en eng SAGE Publications http://journals.sagepub.com/page/policies/text-and-data-mining-license Progress in Physical Geography: Earth and Environment volume 45, issue 3, page 339-374 ISSN 0309-1333 1477-0296 journal-article 2020 crsagepubl https://doi.org/10.1177/0309133320961705 2024-08-27T04:23:23Z Debris flows originating in the mountain cryosphere (DFMC) are one of the most globally important, widely distributed mass flows (and natural geohazards) in mountain areas with a high altitude and/or high latitude. This is particularly the case in high mountain areas that have been undergoing rapid glacier retreat, permafrost degradation, and other melt/thaw related processes. As a consequence, the actual hazards and potential risks of DFMC have drawn increasing attention in the context of global climate change (i.e. a rising temperature and higher occurrence of strong precipitation events). Unlike debris flows at low elevations, where their occurrence is closely related to precipitation (intensity and duration), the breach of a DFMC event depends on precipitation and/or air temperature, which in turn influence melt/thaw processes, rending the formation mechanism much more complicated. Although research has been widely carried out on DFMC in past decades, there is still a long way to go before we have reached a complete understanding of the formation mechanism and triggering conditions. This review summarizes recent progress in the study of DFMC, including typical DFMC events and their causes, the failure mechanisms of rock (or ice-rock joints), the characteristics of moraine deposits, initiation through hydraulic erosion (entrainment), the relationship between DFMC initiation and meteorological conditions, and the slope stability of the mountain cryosphere under a changing climate. Several issues that should be addressed in future research are also discussed. Article in Journal/Newspaper Ice permafrost SAGE Publications Progress in Physical Geography: Earth and Environment 45 3 339 374 |
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English |
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Debris flows originating in the mountain cryosphere (DFMC) are one of the most globally important, widely distributed mass flows (and natural geohazards) in mountain areas with a high altitude and/or high latitude. This is particularly the case in high mountain areas that have been undergoing rapid glacier retreat, permafrost degradation, and other melt/thaw related processes. As a consequence, the actual hazards and potential risks of DFMC have drawn increasing attention in the context of global climate change (i.e. a rising temperature and higher occurrence of strong precipitation events). Unlike debris flows at low elevations, where their occurrence is closely related to precipitation (intensity and duration), the breach of a DFMC event depends on precipitation and/or air temperature, which in turn influence melt/thaw processes, rending the formation mechanism much more complicated. Although research has been widely carried out on DFMC in past decades, there is still a long way to go before we have reached a complete understanding of the formation mechanism and triggering conditions. This review summarizes recent progress in the study of DFMC, including typical DFMC events and their causes, the failure mechanisms of rock (or ice-rock joints), the characteristics of moraine deposits, initiation through hydraulic erosion (entrainment), the relationship between DFMC initiation and meteorological conditions, and the slope stability of the mountain cryosphere under a changing climate. Several issues that should be addressed in future research are also discussed. |
author2 |
National Natural Science Foundation of China national basic research program of china |
format |
Article in Journal/Newspaper |
author |
Yu, Guo-An Yao, Weiwei Huang, He Qing Liu, Zhaofei |
spellingShingle |
Yu, Guo-An Yao, Weiwei Huang, He Qing Liu, Zhaofei Debris flows originating in the mountain cryosphere under a changing climate: A review |
author_facet |
Yu, Guo-An Yao, Weiwei Huang, He Qing Liu, Zhaofei |
author_sort |
Yu, Guo-An |
title |
Debris flows originating in the mountain cryosphere under a changing climate: A review |
title_short |
Debris flows originating in the mountain cryosphere under a changing climate: A review |
title_full |
Debris flows originating in the mountain cryosphere under a changing climate: A review |
title_fullStr |
Debris flows originating in the mountain cryosphere under a changing climate: A review |
title_full_unstemmed |
Debris flows originating in the mountain cryosphere under a changing climate: A review |
title_sort |
debris flows originating in the mountain cryosphere under a changing climate: a review |
publisher |
SAGE Publications |
publishDate |
2020 |
url |
http://dx.doi.org/10.1177/0309133320961705 http://journals.sagepub.com/doi/pdf/10.1177/0309133320961705 http://journals.sagepub.com/doi/full-xml/10.1177/0309133320961705 |
genre |
Ice permafrost |
genre_facet |
Ice permafrost |
op_source |
Progress in Physical Geography: Earth and Environment volume 45, issue 3, page 339-374 ISSN 0309-1333 1477-0296 |
op_rights |
http://journals.sagepub.com/page/policies/text-and-data-mining-license |
op_doi |
https://doi.org/10.1177/0309133320961705 |
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Progress in Physical Geography: Earth and Environment |
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45 |
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3 |
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339 |
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374 |
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1810449275965931520 |