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Overview on snow and ice avalanches in High Mountain Asia (HMA)

Urheber*innen

Acharya,  Anushilan
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Steiner,  Jako Friedrich
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Walizada,  Khwaja Momin
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Zakir,  Zakir Hussain
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Ali,  Salar
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Caiserman,  Arnaud
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

Watanabe,  Teiji
IUGG 2023, General Assemblies, 1 General, International Union of Geodesy and Geophysics (IUGG), External Organizations;

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Zitation

Acharya, A., Steiner, J. F., Walizada, K. M., Zakir, Z. H., Ali, S., Caiserman, A., Watanabe, T. (2023): Overview on snow and ice avalanches in High Mountain Asia (HMA), XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG) (Berlin 2023).
https://doi.org/10.57757/IUGG23-2897


Zitierlink: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5018979
Zusammenfassung
This study explores the hazard of avalanches in high mountain Asia (HMA), an area that not only sustains livelihoods through water storage, but also holds potential for natural disasters. Although there is limited research on the complex relationship between climate and triggers of avalanches, this study reviews available literature to identify research gaps and proposes future directions for research and mitigation strategies. In this study, available literature was reviewed covering the period from the late 20th century to June 2022 to identify research and societal gaps and propose future directions of research and mitigation strategies. Beyond scientific literature, technical reports, newspapers, social media and other local sources were consulted to compile a comprehensive, open access and version-controlled database of avalanche events and their associated impacts. Over 681 avalanches with more than 3131 human fatalities were identified in eight countries of the region. Afghanistan has the highest recorded avalanche fatalities (1057) followed by India (952) and Nepal (508). Additionally, 564 people lost their lives while climbing peaks above 4500 m a.s.l., one third of which were hired staff. Although fatalities are significant, and local long-term impacts of avalanches may be considerable, so far, limited holistic adaptation or mitigation measures exist in the region. Considering the high impact avalanches have in the region we suggest to further develop adaptation measures including hazard zonation maps based on datasets of historic events and modelling efforts. More research studies should also be attempted to understand trends and drivers of avalanches in the region.