VSE knjižnice (vzajemna bibliografsko-kataložna baza podatkov COBIB.SI)
  • Using lidar data for debris flow modelling
    Sodnik, Jošt ; Podobnikar, Tomaž ; Mikoš, Matjaž
    Mathematical modelling is a common approach when assessing debris flow hazard.In this study we applied the widely used Flo-2D model. The high accuracy of the input parameters is essential for ... obtaining acceptable results. The numerical grid in the area of the debris flow movement is generated from topographic data. In Slovenia, DEM5 and DEM12.5 are publicly available data. Yet, morphological accuracy of those datasets is questionable because of their development methods and their low morphologic resolution. A better solution is LiDAR derived data with higher resolution and a lot of options for further improvements with different methods and algorithms. Results with LiDAR data are more accurate and more useful for debris flow hazard mapping. The modelled depths and velocities are more accurate and follow better field conditions. Downside of the high resolution data is much longer computational time. Since torrential fans are often densely populated, modelling of built structuresʼ influences is also important. With adequate modelling of such structures the obtained results are more accurate with better expressed local flow conditions.
    Vir: 12th Congress INTERPRAEVENT 2012 : proceedings : 23-26 April 2012, Grenoble, France (Str. 573-583)
    Vrsta gradiva - prispevek na konferenci ; neleposlovje za odrasle
    Leto - 2012
    Jezik - angleški
    COBISS.SI-ID - 5816673

Vnos na polico