Analysis of Mountain Relief for the Causes of Snow Avalanches

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dc.contributor.authorРудий, Роман Михайлович
dc.contributor.authorКисельов, Юрій Олександрович
dc.contributor.authorДомашенко, Галина Тимофіївна
dc.contributor.authorКравець, Олена Ярославівна
dc.contributor.authorГусар, Катерина Дмитрівна
dc.date.accessioned2021-11-01T12:03:14Z
dc.date.available2021-11-01T12:03:14Z
dc.date.issued2020-12
dc.description.abstractThe descent of avalanches is quite a usual phenomenon for the Ukrainian Carpathians, as well as for the conditions of mountain terrain in general. The Gorgany range of the Carpathian mountains is a typical avalanche-prone territory. Avalanches cause significant damage to forestry and may lead to casualties. Therefore, descent of avalanches has for a long time been a subject of fundamental research in geomorphology, meteorology, topography, photogrammetry and GIS technologies. Using photogrammetric mapping, we analyzed the causes of the descent of one of the largest avalanches in the Ukrainian Carpathians for the past 15 years. The avalanche fell from Poliensky mountain in the Gorgany mountain range in 2006, causing destruction of a great amount of forest. The main causes of avalanches were divided into two groups, the first including more or less stable factors caused by impact of terrain and somewhat less by solar radiation and the second group comprising meteorological factors, such as prolonged snowstorms and snowfall, that is, different fluctuations in weather. The main attention was paid to the first group of factors. For this purpose, a digital terrain model (DTM) of the study area was developed, visualizing the terrain, demonstrating thestudied slope of the mountain along which the avalanche slid. According to the digital model, we developed maps of the steepness and exposition of the slope. Also we calculated the coefficient for solar radiation incident on the slope and which depends on the height ofthe Sun above the horizon and the coordinates of the slope. Using these data, the illuminance map of the Poliensky mountain area was developed. Studies conducted using GIS technologies led to the conclusion that the determining factors that triggered the powerful avalanche from Poliensky mountain were the great steepness and length of the slope, as well as the absence of forest at the top of the mountain, i.e. at the beginning of the avalanche track.uk_UA
dc.identifier.citationRudyi R.M., Kyselov Iu.O., Domashenko H.T., Kravets O.Ia., Husar K.D. Analysis of Mountain Relief for the Causes of Snow Avalanches. Journal of Geology, Geography and Geoecology, №29(4). 2020. Р. 789–795. doi: 10.15421/112071uk_UA
dc.identifier.urihttp://lib.udau.edu.ua/handle/123456789/8786
dc.language.isoen_USuk_UA
dc.publisherDnipro national university named after Oles Honcharuk_UA
dc.subjectavalancheuk_UA
dc.subjectmountainous terrainuk_UA
dc.subjectreliefuk_UA
dc.subjectilluminationuk_UA
dc.subjectslopeuk_UA
dc.subjectforestuk_UA
dc.subjectgeoinformation technologiesuk_UA
dc.subjectvisualizationuk_UA
dc.titleAnalysis of Mountain Relief for the Causes of Snow Avalanchesuk_UA
dc.typeСтаттяuk_UA
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