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    Wyświetlanie 1-7 z 7
    Tytuł:
    Rainfall Threshold for Landslide Warning in Southern Thailand – An Integrated Landslide Susceptibility Map with Rainfall Event – Duration Threshold
    Autorzy:
    Salee, Rattana
    Chinkulkijniwat, Avirut
    Yubonchit, Somjai
    Bui Van, Duc
    Powiązania:
    https://bibliotekanauki.pl/articles/2202301.pdf
    Data publikacji:
    2022
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    rainfall threshold
    landslide susceptibility level
    contingency matrix
    skill score
    Opis:
    Southern Thailand is one of hotspots for landslides. So far, the rainfall triggered landslides in this region caused many sufferers and fatalities. On the basis of the rainfall data that triggered ninety-two landslide events during 1988–2018 and the landslide susceptibility maps published by the Department of Mineral Resources (DMR), this study introduced rainfall event-duration (ED) thresholds, namely EDm and EDh thresholds, for the places classified as the modest and the huge susceptibility levels, respectively. The modest susceptibility is a combination of very low, low, and moderate landslide susceptibility levels indicated in DMR maps. The huge susceptibility is a combination of high and very high landslide susceptibility levels indicated in DMR maps. Indicated by an area under the receiver operating characteristic curve (AUC), the EDm and EDh thresholds yielded the significantly better predictability than the original threshold did. Furthermore, the EDm threshold yielded the perfect prediction with AUC of 1.00.
    Źródło:
    Journal of Ecological Engineering; 2022, 23, 12; 124--133
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mapa podatności osuwiskowej-studium z rejonu Jodłówki (Pogórze Dynowskie)
    Landslide susceptibility map: a case study from the Jodłówka region (Dynowskie Foothills)
    Autorzy:
    Kamiński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2074557.pdf
    Data publikacji:
    2007
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    analiza przestrzenna
    mapa podatności na osuwiska
    osuwiska
    fotografia lotnicza
    Pogórza Dynowskie
    spatial analysis
    landslide susceptibility map
    landslides
    aerial photography
    Dynowskie Foothills
    Opis:
    The Jodłówka region is located in the north-eastern part of the Dynowskie Foothills. The region is characterized by a very high density of landslides and is composed of Cretacoeus-Tertiary sediments of the Skole Nappe. The Inoceramian Beds are the dominant lithologal unit overlain with the Variegated Shales. The present paper focuses on the influence of geological and geomorphological factors upon the landslide occurrence on a local scale. The analysis is based on digital data set including active landslides as well as various types of digital elevation models (DTM), aerial photography and geological maps. These data were combined to compute landslide susceptibility map using index methods.
    Źródło:
    Przegląd Geologiczny; 2007, 55, 9; 779-784
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Landslide susceptibility assessment: a case study from Beskid Niski Mts., Carpathians, Poland
    Autorzy:
    Mrozek, T.
    Poli, S.
    Steracchini, S.
    Zabuski, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/1186178.pdf
    Data publikacji:
    2004
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    mapa podatności osuwiskowej
    Beskid Niski
    landslide susceptibility map
    Beskid Niski Mts.
    Opis:
    This study involves the integration of multiple thematic datasets for landslide susceptibility assessment through spatial prediction models. The proposed methodology has been applied in the Bystrzanka-Biczyska area (Beskid Niski Mts., Carpathians Mts., Poland), characterised by a very high density of landslides. The susceptibility assessment has been based on an indirect bivariate statistical analysis ("Weights of Evidence" modelling technique, Bonham-Carter et al., 1989) performed in order to predict the occurrence of an event (landslide) where well-known evidences (predictor variables) are available. According to the relative importance of each evidence, a landslide susceptibility map has been produced. Observing final prediction results, it is concluded that the susceptibility map gives useful information both on present instability of the area and its possible future evolution in agreement with the morphological evolution of the area.
    Źródło:
    Polish Geological Institute Special Papers; 2004, 15; 13-18
    1507-9791
    Pojawia się w:
    Polish Geological Institute Special Papers
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Mapa podatności osuwiskowej w skali regionalnej – przykład z doliny Sanu na Pogórzu Dynowskim
    Landslide susceptibility map in a regional scale – example from of San valley in the Dynów Foothills
    Autorzy:
    Kamiński, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2062091.pdf
    Data publikacji:
    2012
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    mapa podatności
    osuwisko
    geostatystyka
    geologia
    Pogórze Dynowskie
    susceptibility map
    landslide
    geostatistics
    geology
    Dynów Foothills
    Opis:
    Pogórze Dynowskie jest obszarem Karpat fliszowych, gdzie ruchy masowe, zwłaszcza osuwiska, są zjawiskami występującymi powszechnie. Wpływają one na ewolucję stoków, zarówno w długich (tysiące lat), jak i w krótszych (do kilku lat) przedziałach czasowych. Dlatego skutki ruchów osuwiskowych powinny stanowić istotną przesłankę przy planowaniu przestrzennym. Celem badań było opracowanie numeryczne w systemie GIS mapy podatności osuwiskowej w skali 1:25 000 dla wybranego odcinka doliny Sanu na Pogórzu Dynowskim. Mapy te są istotne pod kątem planowania przestrzennego w gminach i powiatach oraz oceny ryzyka osuwiskowego. Do modelowania GIS użyto pięciu czynników biernych: litologia podłoża fliszowego, budowa tektoniczna, nachylenie, ekspozycja oraz wysokość terenu. Do obliczenia podatności osuwiskowej wykorzystano metodę Weights of Evidence.
    Dynów Foothills is an area Carpathians where mass movements, in particular landslides are phenomena commonly occurring. They affect the evolution of the slopes in both the long (thousands of years) as well as shorter (up to several years) intervals. Therefore, the effects of landslide movements should be an important consideration when planning. The objective was to develop a numerical GIS landslide susceptibility maps in scale 1: 25 000 for the selected area of the San river valley in the Dynów foothill. These maps are important for spatial planning in communities and counties, and landslide risk assessment. GIS was used to model passive five factors: flysch lithology, tectonic, slope, exposure and altitude. Susceptibility was calculated of the Weights of Evidence method.
    Źródło:
    Biuletyn Państwowego Instytutu Geologicznego; 2012, 452; 109--117
    0867-6143
    Pojawia się w:
    Biuletyn Państwowego Instytutu Geologicznego
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Osuwiska w Sudetach
    Landslides in the Sudetes
    Autorzy:
    Sikora, Rafał
    Wojciechowski, Tomasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2075936.pdf
    Data publikacji:
    2019
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    ruchy masowe
    cyfrowy model wysokościowy
    mapa podatności na osuwiska
    SW Poland
    mass movements
    digital elevation model
    landslide susceptibility map
    Opis:
    This paper presents the results of analysis of landslides distribution in the Sudetes (SW Poland). Our study was based on the analysis of the LiDAR-data digital elevation model and integrated with investigations of different factors for landslide development. The results of the study showed relationships between the spatial distribution of landslides and geology of their basement. For the areas built by Permo-Mesozoic and late Variscan sedimentary and volcanogenic rocks, the tectonic and lithological factors are predominant for landslide occurrences. The largest landslides have a tectonic affinity and represent a frontal type of geometry. The relationships between geological conditions and mass movements were also confirmed by the constructed landslide susceptibility map of the Sudetes.
    Źródło:
    Przegląd Geologiczny; 2019, 67, 5; 360--368
    0033-2151
    Pojawia się w:
    Przegląd Geologiczny
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Landslide susceptibility mapping in the Beskid Niski Mts., Western Carpathians (Dukla commune, Poland)
    Autorzy:
    Bronowski, B.
    Chybiorz, R.
    Jura, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/2059958.pdf
    Data publikacji:
    2016
    Wydawca:
    Państwowy Instytut Geologiczny – Państwowy Instytut Badawczy
    Tematy:
    landslide
    susceptibility map
    index of entropy
    SOPO
    Beskid Niski Mts.
    Opis:
    Landslides are one of the most prominent processes degrading the Beskidy Mts. slopes. Susceptibility assessment is based on the detailed mapping of the Dukla commune (235 km2) at the scale 1: 10,000 in frames of the project Landslide Counteracting System. The terrain affected by landslides is 19.59 km2, which is 8.34% of the researched area. The largest number of landslides can be found in the Beskid Dukielski Mts. area, where nearly 78% of all landslide areas are concentrated. Analysis of landslide-causing factors was performed using the index of entropy method. The following five factors were considered: lithology, slope inclination, slope aspect, distance to faults, and distance to drainage. The most important role in the development of mass movements in the study area is played by slope inclination (0.0079) and lithology of siliciclastic flysch (0.0066). The method applied also contributed to devising a landslide susceptibility map of considerable accuracy at 90.5%. The analyses of the landslide factors have proven that understanding of geology and landforms is not only of cognitive significance, but adds to practical applications in spatial management. The studies confirmed usefulness of large-scale mapping of landslides and applying statistical methods and GIS techniques in the spatial analysis of landform transformations. The obtained landslide susceptibility map can be a basis for assessing landslide risk. High and very high landslide susceptibility classes cover nearly 50% of the study area.
    Źródło:
    Geological Quarterly; 2016, 60, 3; 586--596
    1641-7291
    Pojawia się w:
    Geological Quarterly
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Geological and Geomorphological Factors of Natural Hazards in Ukrainian Carpathians
    Autorzy:
    Ivanik, Olena
    Shevchuk, Viktor
    Kravchenko, Dmytro
    Shpyrko, Serge
    Yanchenko, Vitalii
    Gadiatska, Kateryna
    Powiązania:
    https://bibliotekanauki.pl/articles/123735.pdf
    Data publikacji:
    2019
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    geomorphological factor
    natural hazards
    landslide hazards
    landslide susceptibility
    conceptual model
    integral spatial map
    Ukrainian Carpathians
    Opis:
    The consideration was given to the geological and geomorphological factors of natural hazards in the Ukrainian Carpathians. Principal impact of rock lithology, geomorphological structure, underwater regime and seismic processes on the erosion, gravitational and water-gravitational processes formation was demonstrated. The research confirmed a special role of the tectonic factor and the presence of weak zones in the development of natural hazards. Weak zones are characterized by fracturing, brecciation, bedding of flysch deposits and contrast in permeability. The strength properties of rocks decrease drastically within such zones, and large-scale landslide formation processes occur, especially in the case of subparallel location of zones, relative to river valleys and slopes. The factors of hazardous geological processes were defined and classified using GIS analysis and the developed geological model. A conceptual model of landslide hazards in the area of Carpathian Mountains was developed. Weight coefficients of potentially landslide prone factors were determined from the on-site observations and archive data. An integral spatial map of landslide susceptibility was proposed. The results of this research were the basis of geological environment modeling for the assessment of hazardous geological processes impact on the functioning of infrastructure objects.
    Źródło:
    Journal of Ecological Engineering; 2019, 20, 4; 177-186
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

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