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Izdelava kart nevarnosti pred snežnimi plazovi na primeru Zgornje Soške doline : magistrsko delo : magistrski študij - 2. stopnja = Snow avalanche hazard mapping in the Upper Soča valley : M. Sc. Thesis : Master Study ProgrammesKostevc, Miha, gozdarV sklopu magistrskega dela so bila z daljinsko vodenim letalnikom posneta območja odlaganja 11 snežnih plazov, ki so se 22. in 23. januarja 2021 sprožili v Zgornji Soški dolini. Na podlagi teh ... posnetkov so bili izdelani fotogrametrični oblaki točk, ortofoti (DOF) in digitalni modeli površja (DMP), iz katerih je bil za območja odlaganja določen doseg snežnih plazov in izračunana volumen ter višina plazovine. Volumen plazovine je znašal od 19.740 m3 (snežni plaz v Koritih) do 542.740 m3 (snežni plaz Komar). Maksimalna višina plazovine je znašala od 8,2 m (snežni plaz Peščenk) do 25,2 m (snežni plaz Komar). Glede na rezultate kalibracijskega modeliranja z modelom Flow-Py in skladnosti modelske napovedi z dejanskimi območji odlaganja sta bili določeni optimalni vrednosti vhodnih parametrov modela za dve skupini snežnih plazov. Pridobljeni sta bili s klastrsko analizo glede na vrednosti kota energijske črte (α), kjer so kazalniki prileganja napovedi dosegli maksimum. Z logistično regresijo sta bila ugotovljena dva dejavnika, ki ključno vplivata na razvrstitev v skupini, in sicer delež potencialnih območij proženja znotraj prispevnih območij in povprečni vzdolžni padec plaznice. Pri modeliranju v drugi fazi, ki je zajemalo vse plazove območja, sta bili uporabljeni optimalni vrednosti kota energijske črte α = 39,5⁰ za prvo in α = 29⁰ za drugo skupino. Rezultat modeliranja na podlagi optimizacije vhodnih parametrov je karta nevarnosti pred snežnimi plazovi na območju Zgornje Soške doline.Type of material - master's thesis ; adult, seriousPublication and manufacture - Ljubljana : [M. Kostevc], 2022Language - slovenianCOBISS.SI-ID - 122429443
Author
Kostevc, Miha, gozdar
Other authors
Kobal, Milan
Topics
snežni plaz |
Zgornja Soška dolina |
Flow-Py |
daljinsko vodeni letalnik |
snow avalanche |
Upper Soča valley |
Flow-Py |
unmanned aerial vehicle
Library/institution |
City | Acronym | For loan | Other holdings |
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Slovenian Forestry Institute, Forestry Library, Ljubljana | Ljubljana | GIS |
outside loan 1 cop.
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Kostevc, Miha, gozdar | |
Kobal, Milan | 27605 |
Source: Personal bibliographies
and: SICRIS
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