Recent debris-flow activity on the 1913 Tsivlos landslide body (Northern Peloponnese; Greece)

Tichavský, Radek; Fabiánová, Andrea; Koutroulis, Aristeidis; Spálovský, Vilém; Vala, Ondřej

doi:10.1016/j.catena.2023.107318

CATENA

2023

DOI: 10.1016/j.catena.2023.107318

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Recent debris-flow activity on the 1913 Tsivlos landslide body (Northern Peloponnese; Greece)

Radek Tichavský

Andrea Fabiánová

Aristeidis Koutroulis

et al.

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2024

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Cited by 4 publications

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“…In the Carpathians, as is other mountainous regions of Europe (Tiranti et al, 2018;Frank et al, 2019;De Falco et al, 2023;Tichavský et al, 2023), debris flow is one of the most frequent processes threatening local communities (Ilinca, 2014;Vădean et al, 2015;Mihu-Pintilie et al, 2016;Pop et al, 2019). This hazard is due to their high mobility induced by rainfall, which particularly affects flysch deposits and can cause damage not only within and adjacent to the flow-slide sector, but also in the depositional area (Santo et al, 2018).…”

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UAV and field survey investigation of a landslide triggered debris flow and dam formation in Eastern Carpathians

Mihu-Pintilie,

Stoleriu,

Urzică

2024

Front. Earth Sci.

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In the May–August period of 2010, major heavy rains impacted the Eastern Carpathians (Northeastern Romania), leading to flash floods and triggering numerous landslides. The extreme weather conditions caused damage to the road network, extensive forest destruction, and lead to formation of impounded lakes. One of the hardest-hit areas was the mountain tributaries catchments of the Bistrița watershed. Particularly, the most significant landslide-triggered debris flow event occurred in the upper Iapa valley (Neamț County). The landslide process started near the top of the Drumul Chinezilor ridge in the Goșmanu-Geamăna Massif (Tarcău Mountains), at an elevation of 875 m a.s.l., and the flow-slide fan obstructed a 300-m section of the Iapa watercourse at 615 m a.s.l. This study compiles the climatic, anthropogenic, geological, and geomorphological evidence gathered during the field investigation in the October 2023 and utilizes Unmanned Aerial Vehicle (UAV) data collected to reconstruct the occurred debris flow-slide event. Additionally, it explores considerations regarding the reactivation of landslide processes, dam stability, and the future evolution of the impounded lake (Făgețel Lake: water surface area of 9,500 m2; maximum depth 10 m). Furthermore, the lessons learned and future actions required to prevent further mass movement associated with debris flow-slide processes in prone areas of the Eastern Carpathians are discussed.

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confidence: 99%

UAV and field survey investigation of a landslide triggered debris flow and dam formation in Eastern Carpathians

Mihu-Pintilie,

Stoleriu,

Urzică

2024

Front. Earth Sci.

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Optimising landslide trigger analysis through integration of diverse dendrogeomorphic approaches and multi-source climate and documentary data

Tichavský

2024

Landslides

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Landslides on forested slopes, which often lack extensive documentary data and monitoring, can be evaluated using tree-ring records. This method is commonly employed for assessing hydrometeorological triggers similar to sites with documentary-based landslide catalogues. However, uncertainties arise in setting dendrogeomorphic thresholds and using diverse climate data sources for trigger identification. This paper reconstructs the activity of six landslides using tree-ring records in a region with well-documented landsliding and long-term climate data from rain gauges. The objective was to test different dendrogeomorphic approaches for identifying landslide event year and to analyse various rain, snow, and soil moisture parameters from meteorological stations and climate reanalyses to identify triggers. This involved examining how variations in each research step affect results and potentially enhancing the interpretation of landslide triggers. Documentary data indicated frequent landsliding during spring and summer, while tree-ring chronologies showed the strongest connection to increased winter and spring precipitation measured by rain gauges, suggesting an enhancement of winter precipitation as a potential climate preparatory factor. Furthermore, the results showed that combining tree-ring and documentary data yielded more statistically informative links than using tree-ring data alone. Additionally, integrating gridded data from ERA5-Land climate reanalyses enhanced the interpretation of explanatory factors. While increased winter and spring precipitation were most strongly linked to landslide initiation using precipitation data, volumetric soil water content derived from reanalysis data was crucial for identifying summer landslide occurrences. Incorporating soil water content into dendrogeomorphic research improved the interpretation of landslide initiation timing. Therefore, regional tree-ring-based chronologies with improved identification of landslide triggers can significantly reduce uncertainties in decision-making when it comes to landslide hazard management. Future research should explore the effectiveness of freely available satellite-based precipitation data with tree-ring chronologies, particularly in regions with limited information on precipitation intensity.

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Characteristics and mechanism of a catastrophic landslide-debris flow disaster chain triggered by extreme rainfall in Shaanxi, China

Yu,

Zhan,

Yao

et al. 2024

Nat Hazards

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Recent debris-flow activity on the 1913 Tsivlos landslide body (Northern Peloponnese; Greece)

Cited by 4 publications

References 82 publications

UAV and field survey investigation of a landslide triggered debris flow and dam formation in Eastern Carpathians

UAV and field survey investigation of a landslide triggered debris flow and dam formation in Eastern Carpathians

Optimising landslide trigger analysis through integration of diverse dendrogeomorphic approaches and multi-source climate and documentary data

Characteristics and mechanism of a catastrophic landslide-debris flow disaster chain triggered by extreme rainfall in Shaanxi, China

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