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Avalanche hazard mapping in the Arctic Zone of Russiaтезисы доклада Электронная публикация Тезисы
- Авторы: Turchaninova A.S., Sokratov S.A., Ginzburg N.A.
- Сборник: American Geophysical Union (AGU) 2020 Fall Meeting
- Том: 2020
- Тезисы
- Год издания: 2020
- Издательство: AGU Publications
- Местоположение издательства: Вашингтон
- Номер статьи: NH013-0016
- Аннотация: Snow avalanches are widespread in the Arctic Zone of Russia. They occur on all the Arctic islands with severe topography and annually release in the mountains of Kola Peninsula, Polar Ural, the Putorana Plateau and the Byrranga, the Northeast of Russia. Avalanche fatalities regularly take place in the Khibiny Mountains, registered in Monchetundra, Lovozer Tundras, in Murmansk, in the Polar Ural, in the Putorana Plateau and Chukotka. The destruction of infrastructure by snow avalanches were reported in different spots of Arctic zone of Russia. In this research we continue to discuss the avalanche hazard characteristics under the climate change and problems of the Arctic Zone of Russia in response to land-use practice and safe operation of infrastructure. Avalanche hazard maps are a key instrument in the frame of land-use planning. They show where settlements are under threat from avalanches and plot the frequency and intensity of avalanche events. In this research we applied internationally accepted avalanche hazard zoning approaches including numerical modelling of snow avalanches using RAMMS in combination with statistically based methods for avalanche parameters assessment (volumes and runout distances) accepted by Russian engineering guidelines. As a result, we developed a new hazard zoning approach most suitable for the research region and produced large scale avalanche hazard maps for the settlements of the Arctic zone of Russia for the first time considering the natural phenomenon and the developments features of the region. The problem is that all considered settlements were established in the Arctic long before any avalanche hazard maps had been produced. It was found that numerous objects of infrastructure are already located in the avalanche hazard zones and can now be protected only by structural avalanche protection measures. The proposed approach of assessing the impact of snow avalanches on infrastructure can be used to avoid construction in the avalanche hazard zones in the future and therefore will be helpful in reducing the cost of construction and in increasing the efficiency of the avalanche protection measures in the Arctic. The research was supported by the RFBR grant № 18-05-60080 “Dangerous nival-glacial and cryogenic processes and their influence on infrastructure in the Arctic”.<https://abstractsearch.agu.org/meetings/2020/FM/NH013-0016.html>
- Добавил в систему: Сократов Сергей Альфредович