نتایج جستجو برای: rockfall

تعداد نتایج: 532  

Journal: :Natural Hazards and Earth System Sciences 2019

Journal: :Forests 2022

In this paper, we present an identification of rockfall-injured trees based on multiband images obtained by unmanned aerial vehicle (UAV). A survey with a multispectral camera was performed three rockfall sites versatile tree species (Fagus sylvatica L., Larix decidua Mill., Pinus sylvestris Picea abies (L.) Karsten, and Abies alba Mill.) different characterizations rockfalls rockfall-induced i...

Journal: :Remote Sensing 2022

Rockfall simulations constitute the first step toward hazard assessments and can guide future rockfall prevention efforts. In this work, we assess impact of digital elevation model (DEM) resolution on accuracy numerical simulation outputs. For purpose, compared output obtained using 1 m, 2 m 3 UAV-derived DEMs, to two other models based coarser topographic data (a 5 DEM through interpolating co...

Journal: :Remote Sensing 2023

Deglaciation in high mountain areas signifies the transition from glacial to periglacial conditioned landscapes. Due reduced melt rate of debris-covered glacier ice, these may persist long after surrounding has melted, resulting formation distinct post-glacial landforms. In this study, we examine geomorphological evolution and potential future development a 19,267 m3 ± 204 rockfall permafrost-a...

Journal: :Frontiers in Earth Science 2022

Hillslope processes and mass movement are key issues in the analysis evaluation of geological disasters mountainous regions. A rockfall-dominated talus slope exhibits a typical outcrop–talus system as product detached boulders rock fragments. The Zongling rockfall zone is one most active systems southwest China, it provides representative case study on assessment hazards at base slopes. In this...

Journal: :Land 2023

Rockfall analysis is a multiparametric procedure with many uncertainties and the outputs are largely dependent on some critical engineering geological parameters involved in used simulation model. In this paper, three completely different limestone rock sequences, named Pantokratoras, Vigla, Paxos limestones along western coastal slopes of Lefkada island, Greece, examined regarding their rockfa...

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