Browsing by Author "Podolszki, Laszlo"
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- Landslide monitoring techniques in the Geological Surveys of EuropePublication . Auflič, Mateja Jemec; Herrera, Gerardo; Mateos, Rosa María; Poyiadji, Eleftheria; Quental, Lídia; Severine, Bernardie; Peternel, Tina; Podolszki, Laszlo; Calcaterra, Stefano; Kociu, Arben; Warmuz, Bartłomiej; Jelének, Jan; Hadjicharalambous, Kleopas; Becher, Gustaf Peterson; Dashwood, Claire; Ondrus, Peter; Minkevičius, Vytautas; Todorović, Saša; Møller, Jens Jørgen; Marturia, JordiABSTRACT: Landslide monitoring is a mandatory step in landslide risk assessment. It requires collecting data on landslide conditions (e.g., areal extent, landslide kinematics, surface topography, hydrogeometeorological parameters, and failure surfaces) from different time periods and at different scales, from site-specific to local, regional, and national, to assess landslide activity. In this analysis, we collected information on landslide monitoring techniques from 17 members of the Earth Observation and Geohazards Expert Group (from EuroGeoSurveys) deployed between 2005 and 2021. We examined the types of the 75 recorded landslides, the landslide techniques, spatial resolution, temporal resolution, status of the technique (operational, non-operational), time of using (before the event, during the event, after the event), and the applicability of the technique in early warning systems. The research does not indicate the accuracy of each technique but, rather, the extent to which Geological Surveys conduct landslide monitoring and the predominant techniques used. Among the types of landslides, earth slides predominate and are mostly monitored by geological and engineering geological mapping. The results showed that Geological Surveys mostly utilized more traditional monitoring techniques since they have a broad mandate to collect geological data. In addition, this paper provides new insights into the role of the Geological Surveys on landslide monitoring in Europe and contributes to landslide risk reduction initiatives and commitments (e.g., the Kyoto Landslide Commitment 2020).
- Landslides monitoring techniques review in the Geological Surveys of EuropePublication . Auflič, Mateja Jemec; Herrera, Gerardo; Mateos, Rosa María; Poyiadji, Eleftheria; Quental, Lídia; Severine, Bernardie; Peternel, Tina; Podolszki, Laszlo; Iadanza, Carla; Kociu, Arben; Warmuz, Bartłomiej; Jelének, Jan; Hadjicharalambous, Kleopas; Becher, Gustaf Peterson; Dashwood, Claire; Liščák, Pavel; Minkevičius, Vytautas; Todorović, Saša; Møller, Jens JørgenABSTRACT: Landsliding is the downslope movement of surface material under the force of gravity, initiated when gravitational and other types of shear stresses within the slope exceed the shear strength of the material that forms the slope. Often, landslides pose a physical and environmental threat to communities living in landslide-prone areas. While much landslide research focuses on monitoring techniques to define the background of the landslide (extent, volume, velocity, magnitude) one of the main goals of the Geological Surveys (GS) are to support and understand the regional and local geology to identify areas susceptible to landslides.
- Role of Geological Surveys of Europe in landslide monitoringPublication . Auflič, Mateja Jemec; Herrera, Gerardo; Mateos, Rosa María; Poyiadji, Eleftheria; Quental, Lídia; Severine, Bernardie; Peternel, Tina; Podolszki, Laszlo; Calcaterra, Stefano; Kociu, Arben; Warmuz, Bartłomiej; Jelének, Jan; Hadjicharalambous, Kleopas; Becher, Gustaf Peterson; Dashwood, Claire; Ondrus, Peter; Minkevičius, Vytautas; Todorović, Saša; Møller, Jens Jørgen; Marturia, JordiABSTRACT: This work was developed by the Earth Observation and Geohazards Expert Group from EGS and provides an overview of landslide monitoring techniques from 2005 to 2021. Based on the questionnaire, the following objectives were set: (1) to identify the type of monitored landslides, (2) to identify the landslide monitoring techniques, (3) to identify the spatial resolution, temporal resolution, and status of the technique (operational, non-operational), time of using (before the event, during the event, after the event), and applicability of the technique to the early warning system.