Wyniki wyszukiwania - Biblioteka Nauki

Ten serwis zostanie wyłączony 2025-02-11.

Nowa wersja platformy, zawierająca wyłącznie zasoby pełnotekstowe, jest już dostępna.
Przejdź na https://bibliotekanauki.pl

Ograniczanie wyników

2 Quaestiones Geographicae

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Comparative analysis of certainty factor and analytic hierarchy process for landslide susceptibility zonation in parts of Solan, Himachal Pradesh, India

100%

Magray A. A. , Singh K. , Sharma S.

nr 3

5-18

The state of Himachal Pradesh in India is one of the most important hotspots when it comes to landslides; and Kandaghat, a tehsil in the Solan district of Himachal Pradesh having religious and tourism importance, is substantially affected by frequent landslides causing road blocking. In the present study, the analytic hierarchy process (AHP) and certainty factor (CF) techniques, which form part of the geographic information system (GIS)-based landslide susceptibility models, were used to prepare a landslide susceptibility map for the Kandaghat region, for which, as a preliminary step, an inventory of 214 live landslides was prepared from the Bhukosh data directory. The landslide inventory was cross-verified on the Google Earth platform. About nine landslide causative factors (slope, curvature, aspect, soil, rainfall, land use–land cover, lithology, drainage density and lineament density) were considered for the study area, and against the backdrop of these, the corresponding thematic maps were prepared and used in turn for the preparation of the final landslide susceptibility map. Based on the two mentioned techniques, the thematic maps were assigned weights according to their prominence and dynamic processes in the study area. The model performance for each method was evaluated using the area under the curve (AUC), and the accuracies for the AHP and CF were ascertained as, respectively, 81% and 85.6%. The Himalayan terrains are significantly prone to landslides, and this study outlines the characteristics of one of the important Himalayan towns in terms of vulnerability for landslides, together with providing its classification in terms of slope deformation susceptibility; this procedure can help direct attention towards areas needing to be classified under high to very high landslide susceptibility zones.

A comprehensive review on landslide susceptibility zonation techniques

100%

Singh K. , Bhardwaj V. , Sharma A. , Thakur S.

tom 43

nr 1

79-91

This review paper provides an overview of recent research on landslide susceptibility. Landslides are a natural phenomenon that can cause significant damage to infrastructure and endanger human lives. The paper presents an in-depth analysis of the factors that contribute to landslide susceptibility, including geological, hydrological and anthropogenic factors. It also discusses various methods and techniques used to assess landslide susceptibility, including statistical models, geographic information systems (GIS) and remote sensing. The paper examines the advantages and limitations of these methods and highlights the need for an integrated approach that combines multiple techniques to improve accuracy and reliability. Additionally, the paper discusses the challenges associated with developing land-slide susceptibility maps and emphasises the importance of considering uncertainties and risk assessments. The review paper concludes by identifying the gaps in current research and suggesting potential directions for future studies. Overall, this review paper provides a comprehensive analysis of landslide susceptibility, which can serve as a valuable resource for researchers, practitioners and policymakers working in this field.