Graz, Austria, has been run for several starting zones in the mountain above the village Eskifjörður, eastern Iceland, and for one large starting zone in Hólmatindur on the opposite side of the fjord. The runs are intended to shed light on the following aspects of the avalanche hazard situation in t...
| Main Authors: | , , |
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.430.9479 http://www.vedur.is/gogn/snjoflod/haettumat/es/eskifj200204grg.pdf |
| Summary: | Graz, Austria, has been run for several starting zones in the mountain above the village Eskifjörður, eastern Iceland, and for one large starting zone in Hólmatindur on the opposite side of the fjord. The runs are intended to shed light on the following aspects of the avalanche hazard situation in the village: 1. The runout potential of avalanches that are released from starting zones at 500-600 m a.s.l. in Harðskafi and at 600-700 m a.s.l. in Ófeigsfjall in comparison to modelled runout in more typical avalanche paths such as in Neskaupstaður. In particular, the effect of the comparatively small area of the starting zones and the reduced slope in the middle part of the mountainside will be investigated. 2. The shortening of avalanche runout due to lateral spreading of avalanches. This is particularly relevant for avalanches released from the starting zones in Ófeigsfjall and some of the small starting zones in the outer part of the mountainside below Lambeyrardalur. The influence of the complex topography of the slope on the flow of avalanches that are released from the small starting zones in the mountainside below Lambeyrardalur. 3. The direction of the main avalanche tongues from the starting zones that have been defined in the mountains as a part of the hazard zoning for Eskifjörður. 4. The potential runout of large avalanches that are released from the upper part of the mountainside in Hólmatindur on the opposite side of the fjord. The results of the runs will be used in the delineation of the hazard zones for the village. Similar results have previously been used for the same purpose for the villages Bolungarvík, Neskaupstaður, Siglufjörður and Seyðisfjörður (Jóhannesson et al., 2001a,b,c). The section about the application of the model to the 1995 avalanche at Flateyri is identical to a section in the previous reports about SAMOS simulations for other villages in Iceland in order to make the present report independent of the previous reports. |
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