20.500.12556/DiRROS-9313 Analiza hudourniških in erozijskih procesov z uporabo posnetkov brezpilotnih letalnikov Analysis of torrential and erosion processes by the use of the unmanned aerial vehicles (UAV) Brezpilotni letalniki postajajo vedno pogosteje uporabljena tehnologija pri spremljanju hudourniških in erozijskih procesov. V članku je podrobneje predstavljena uporabnost brezpilotnih letalnikov za spremljanje hudourniških (območje Suhega potoka v Zadnji Trenti) in erozijskih procesov (skalni podor nad vasjo Belca). Snemanje smo izvedli z letalnikoma DJI Phantom 3 Pro ter DJI Mavic Air, talne kontrolne točke zajeli s sprejemnikom GNSS Leica Zeno 20 & Leica GG04 Smart Antenna, oblake točk pa izdelali v programu Pix4Dmapper. Točnost georferenciranja oblakov točk je manjša od 0,016 m (RMSE). Nadmorska višina struge Suhega Potoka v Zadnji Trenti se je glede na leto 2014 zvišala na površini 1,01 ha (v povprečju za 0,31 m) ter glede na leto 2014 znižala na površini 1,31 ha (v povprečju za 0,39 m). Na podlagi razlike digitalnega modela reliefa pred podorom (DMR_0) ter po podoru (DMR_1) sklepamo, da se je na območju skalnega podora Belca skupno porušilo 27068,0 m3 skalnega materiala, in sicer na prvem mestu 18144 m3 in na drugem 8924,2 m3 . Upoštevali smo le območja, kjer se je nadmorska višina znižala za več kot 0,1 m. Uporaba brezpilotnih letalnikov tako v raziskovalnem delu na področju proučevanja hudourniških in erozijskih procesov kot tudi pri ukrepanju in reševanju v primeru različnih naravnih nesreč postaja vedno bolj množična. The unmanned aerial vehicles technology is the technology that is becoming increasingly more important in monitoring torrential and erosion processes. Therefore, this article presents the use of unmanned aerial vehicles for monitoring both torrent flows (the area of Suhi potok torrent in Zadnja Trenta) and erosion processes (rockfall above the village Belca). Both study sites were surveyed using DJI Phantom 3 Pro and DJI Mavic Air, while GNNS receiver Leica Zeno 20 and Leica GG04 Smart Antenna were used for determining the locations of ground control points, and Pix4DMapper program was used for the point clouds extraction. The accuracy of the georeferenced point clouds was lower than 0.016 m (RMSE). The river-bed elevation of the Suhi potok torrent has increased by an area of 1.01 ha (on average by 0.31 m) and decreased by an area of 1.31 ha (on average by 0.39m) between years 2014 and 2018. Comparing the digital terrain models before (DMR_0) and after (DMR_1) the Belca rockfall, it can be concluded that 27068 m3 rock material was detached in the rockfall event; 18144 m3 in the first observed area, and 8924 m3 in the second observed area. We considered only areas where the change in elevation was larger than 0.1 m. The use of unmanned aerial vehicles is becoming more common both in studying torrential and erosion processes, as well as in planning protection measures and rescuing process in case of various natural hazards. brezpilotni letalniki slikovno ujemanje digitalni model reliefa hudourniki erozija unmanned aerial vehicles image matching digital terrain model torrent erosion true false false Slovenski jezik Ni določen Delo ni kategorizirano 2019-02-21 14:37:28 2019-02-21 14:49:44 2022-08-24 18:10:00 0000-00-00 00:00:00 2019 0 2019 str. 21-33 št. 1 Letn. 77 2019 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*42+630*58(045)=163.6 0017-2723 5312934 3736834 GV_2019_st_1_final_KobalM.pdf GV_2019_st_1_final_KobalM.pdf 1 C59B200338817BDC1DAB5604E3004F66 86e650f74b944df60508adbd06b0d4779ddf7d783bce8f611e610c88bdc68719 7edefa8a-17b5-11ed-b6b8-001a4af901a5 20.500.12556/dirros/0f7ea42d-459a-4ece-96b3-4f52c8484733 https://dirros.openscience.si/Dokument.php?lang=slv&id=11154 Zveza gozdarskih društev Slovenije Gozdarski vestnik 0 0 0