Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal
<p>Beginning in December 2020, a series of small to medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu Valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comparatively large ice-debris avalanche event occurred,...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2024-02-01
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| Series: | The Cryosphere |
| Online Access: | https://tc.copernicus.org/articles/18/711/2024/tc-18-711-2024.pdf |
| _version_ | 1797311379099615232 |
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| author | A. C. Byers M. Somos-Valenzuela D. H. Shugar D. McGrath M. B. Chand R. Avtar |
| author_facet | A. C. Byers M. Somos-Valenzuela D. H. Shugar D. McGrath M. B. Chand R. Avtar |
| author_sort | A. C. Byers |
| collection | DOAJ |
| description | <p>Beginning in December 2020, a series of small to medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu Valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comparatively large ice-debris avalanche event occurred, covering an area of 0.6 km<span class="inline-formula"><sup>2</sup></span> with a total estimated volume of order 10<span class="inline-formula"><sup>6</sup></span> m<span class="inline-formula"><sup>3</sup></span>. The area of the debris cone left by the August 2022 event increased the historic debris cone area by 0.2 km<span class="inline-formula"><sup>2</sup></span> (total area 0.6 km<span class="inline-formula"><sup>2</sup></span>). Although no human or livestock deaths occurred, the increase in torrent-like pulses of debris upon this historic debris cone since 2020 exemplifies a style of mass movement that may become increasingly common as air temperatures rise in the region. Although the magnitude of this event was small compared to events like the 2021 Chamoli avalanche, the widespread distribution and frequency of comparable events present a substantial, and potentially increasing, hazard across High Mountain Asia.</p> |
| first_indexed | 2024-03-08T01:57:47Z |
| format | Article |
| id | doaj.art-574505ff080e41979a0137d7d968c387 |
| institution | Directory Open Access Journal |
| issn | 1994-0416 1994-0424 |
| language | English |
| last_indexed | 2024-03-08T01:57:47Z |
| publishDate | 2024-02-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | The Cryosphere |
| spelling | doaj.art-574505ff080e41979a0137d7d968c3872024-02-14T08:33:23ZengCopernicus PublicationsThe Cryosphere1994-04161994-04242024-02-011871171710.5194/tc-18-711-2024Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern NepalA. C. Byers0M. Somos-Valenzuela1D. H. Shugar2D. McGrath3M. B. Chand4R. Avtar5Institute of Arctic and Alpine Research, University of Colorado at Boulder, Boulder, CO 80309, USADepartment of Forest Sciences, Faculty of Agriculture and Environmental Sciences, University of La Frontera, Temuco, 4780000, ChileWater, Sediment, Hazards, and Earth-surface Dynamics (waterSHED) Lab, Department of Earth, Energy, and Environment, University of Calgary, 2500 University Drive NW, Calgary, Alberta, T2N 1N4, CanadaDepartment of Geosciences, Colorado State University, Fort Collins, CO 80523, USADepartment of Environmental Sciences, Patan Multiple Campus, Tribhuvan University, Lalitpur, NepalFaculty of Environmental Earth Science, Hokkaido University, Sapporo 060-0810, Japan<p>Beginning in December 2020, a series of small to medium, torrent-like pulses commenced upon a historic debris cone located within the Nupchu Valley, Kanchenjunga Conservation Area (KCA), Nepal. Sometime between 16 and 21 August 2022 a comparatively large ice-debris avalanche event occurred, covering an area of 0.6 km<span class="inline-formula"><sup>2</sup></span> with a total estimated volume of order 10<span class="inline-formula"><sup>6</sup></span> m<span class="inline-formula"><sup>3</sup></span>. The area of the debris cone left by the August 2022 event increased the historic debris cone area by 0.2 km<span class="inline-formula"><sup>2</sup></span> (total area 0.6 km<span class="inline-formula"><sup>2</sup></span>). Although no human or livestock deaths occurred, the increase in torrent-like pulses of debris upon this historic debris cone since 2020 exemplifies a style of mass movement that may become increasingly common as air temperatures rise in the region. Although the magnitude of this event was small compared to events like the 2021 Chamoli avalanche, the widespread distribution and frequency of comparable events present a substantial, and potentially increasing, hazard across High Mountain Asia.</p>https://tc.copernicus.org/articles/18/711/2024/tc-18-711-2024.pdf |
| spellingShingle | A. C. Byers M. Somos-Valenzuela D. H. Shugar D. McGrath M. B. Chand R. Avtar Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal The Cryosphere |
| title | Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal |
| title_full | Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal |
| title_fullStr | Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal |
| title_full_unstemmed | Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal |
| title_short | Brief communication: An ice-debris avalanche in the Nupchu Valley, Kanchenjunga Conservation Area, eastern Nepal |
| title_sort | brief communication an ice debris avalanche in the nupchu valley kanchenjunga conservation area eastern nepal |
| url | https://tc.copernicus.org/articles/18/711/2024/tc-18-711-2024.pdf |
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