Landslide Hazards in the Polish Flysch Carpathians: Example of Łososina Dolna Commune

Gorczyca, Elżbieta; Wrońska-Wałach, Dominika; Długosz, Michal

doi:10.1007/978-94-007-6301-2_15

Cited by 8 publications

(13 citation statements)

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“…The average annual precipitation on the research area was at the level of 728.9 ± 10.7 mm in years 1981(Woźniak 2014. Most of the landslides located within the study area are: translational, rotational and combined rock-debris slides or debris slides (Gorczyca et al 2013).…”

Section: Study Area Characteristicmentioning

confidence: 99%

Impact of DEM-derived factors and analytical hierarchy process on landslide susceptibility mapping in the region of Rożnów Lake, Poland

Pawłuszek

Borkowski

2016

Nat Hazards

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Choosing appropriate landslide-controlling factors (LCFs) in landslide susceptibility mapping (LSM) is a challenging task and depends on the nature of terrain and expert knowledge and experience. Nowadays, it is very common to use digital elevation model (DEM) and DEM-derivatives, as a representation of the topographic conditions. The objective of this study is to explore topography in depth and simultaneously reduce redundant information within DEM-derivatives using principal component analysis. Moreover, this study investigates the impact of DEM-derived factors on LSM. Therefore, three various strategies were tested. The first strategy included a set of LCFs created from the four initial principal components, which were provided from DEM-derived factors. The second strategy included a set of parameters which contained additional lithological and environmental factors. The third strategy utilises the analytical hierarchy process (AHP) to assign weights to each LCF. The LSM was performed based on landslide susceptibility index. Obtained results show that 60% of existing landslides fell into high and very high susceptibility zones using first and second strategies. It proves that topographic factors play a significant role in LSM. Adding additional lithological and environmental factors to the set of LCFs did not improve the results significantly, unless the AHP was used in the third strategy. It improved results significantly; up to 70%. Results from second and third strategies highlight utility of AHP in LSM. Presented studies were performed on the area very prone to landslide occurrence in the region of Ro_ znów Lake, Poland.

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Section: Study Area Characteristicmentioning

confidence: 99%

Impact of DEM-derived factors and analytical hierarchy process on landslide susceptibility mapping in the region of Rożnów Lake, Poland

Pawłuszek

Borkowski

2016

Nat Hazards

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“…Around 36% of the Polish Flysch Carpathians are affected by landslides (Gorczyca et al, 2013). Therefore, the area with the most active landslides in Poland has been selected for this research.…”

Section: Study Area and Existing Landslide Databasementioning

confidence: 99%

“…Within the study area, 506 landslides have been identified over past years with at least one landslide per 1 km2. Landslides in the study area were mapped for the first time in the 1930s (Gorczyca et al, 2013). Since then, the study area has been affected by mass movements several times, mostly triggered by heavy rainfalls.…”

Section: Study Area and Existing Landslide Databasementioning

confidence: 99%

“…Since then, the study area has been affected by mass movements several times, mostly triggered by heavy rainfalls. According to historical data, landslides have occurred in the study area seven times between 1934 and 1974 (Gorczyca et al, 2013). More recently, landslides have caused https://doi.org/10.5194/nhess-2020-112 Preprint.…”

Section: Study Area and Existing Landslide Databasementioning

confidence: 99%

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Multi-temporal landslide activity investigation by spaceborne SAR interferometry: Polish Carpathians case study

Pawłuszek-Filipiak

Motagh

Borkowski

2020

Preprint

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Abstract. The main goal of this research is the activity state verification of existing landslide inventory maps using Persistent Scatterer Interferometry (PSI). The study was conducted in Małopolskie municipality, a rural setting with a sparse urbanization in Polish Flysch Carpathians. PSI have been applied using Synthetic Aperture Radar (SAR) data from ALOS PALSAR, and Sentinel 1A/B from different acquisition geometry (ascending and descending orbit) to increase PS coverage and overcome geometric effects due to layover and shadowing. The Line-Of-Sight PSI measurements were projected to the steepest slope, which allows to homogenize the results from diverse acquisition modes and to compare displacement velocities with different slope orientations. Additionally, landslide intensity (motion rate) and expected damages maps were generated and verified during filed investigations. High correlation between PSI results and in-situ damage observations has been confirmed. Activity state and landslide-related expected damage map have been confirmed for 43 out of a total of 50 landslides investigated in the field. The short temporal baseline provided by Sentinel satellite 1A/B data allows increasing of the PS density significantly. The study substantiates usefulness of SAR based landslide activity monitoring for land use and land development, even in rural areas.

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“…The terrain of the Beskidy part mainly has features of low-and medium-high mountains and medium-high foothills (Starkel 1972). Predominant slope gradients are in the range of 10 -35 , and the relative elevations are from 300 to 340 m in the montane part, and from 140 to 180 m in the sub-montane part (Gorczyca et al 2013). Most of the municipality area is occupied by agricultural land (42%), while forests account for 34% of the total area (Kroh et al 2014).…”

Section: Study Areamentioning

confidence: 99%

Analysis of land use in landslide affected areas along the Łososina Dolna Commune, the Outer Carpathians, Poland

Kroh

2016

Geomatics, Natural Hazards and Risk

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Land use of landslides is still a poorly investigated problem. Landslides cannot be regarded as areas unsuitable for use since they occupy a significantly large surface. The ºososina Dolna municipality in the Outer Carpathians is characterized by a very large number of landslides (16% of the total area, about 500 landslides). Land-cover analysis of this agricultural and forest municipality showed a relatively similar structure of land-cover types on areas affected and unaffected by landslides. Six categories of land cover: forest, woodland, agricultural fields, meadows, orchards and built-up areas occupy in total 98% of landslides and 89% of the municipality. On landslides forests had an 11% higher and agricultural fields a 3% lower share in land cover compared to the whole municipality area. The shares of other types of land cover, such as built-up areas, orchards, and shrubs, were very similar, with not more than a 1% difference. This indicates that despite the occurrence of landslides, these areas can still be used for economic purposes, and on sites under extensive management (e.g. meadows and pastures) landslides may cause no land-use changes.

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Landslide Hazards in the Polish Flysch Carpathians: Example of Łososina Dolna Commune

Cited by 8 publications

References 1 publication

Impact of DEM-derived factors and analytical hierarchy process on landslide susceptibility mapping in the region of Rożnów Lake, Poland

Impact of DEM-derived factors and analytical hierarchy process on landslide susceptibility mapping in the region of Rożnów Lake, Poland

Multi-temporal landslide activity investigation by spaceborne SAR interferometry: Polish Carpathians case study

Analysis of land use in landslide affected areas along the Łososina Dolna Commune, the Outer Carpathians, Poland

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