Kostanjek landslide is the largest landslide in the Republic of Croatia. It is located in the wes... more Kostanjek landslide is the largest landslide in the Republic of Croatia. It is located in the western part of the City of Zagreb, in residential area at the base of the south western slope of Mt. Medvednica. Investigation of this landslide is one of the objectives of the Japanese-Croatian five-year (2009-2014) scientific joint-research project ‘Risk Identification and Land-Use Planning for Disaster Mitigation of Landslides and Floods in Croatia’. The aim of investigation is to check and improve existing landslide model and to establish landslide monitoring system aimed at landslide risk mitigation. A comprehensive, real time monitoring system was designed during the period of 2010 and 2011, installation of equipment started in October 2011, while the completion of works will be finished during the 2013. Monitoring system consist of geodetic, geotechnical, seismological and hydrological equipment. Geodetic equipment includes 15 GNSS stations, geotechnical equipment includes 9 extenso...
This study used GIS as a tool to map storm-induced landslides from SPOT5 images. A digital elevat... more This study used GIS as a tool to map storm-induced landslides from SPOT5 images. A digital elevation model (DEM) of 10m x 10m resolution was used to extract geomorphic landslide causative factors: slope gradient, slope roughness, tangential curvature, relative slope height, total slope height and wetness index. A digital geological map was used to extract geologic causative factors: lithology and distance to the fault trace. SPOT images taken prior to a typhoon were also used to calculate an environmental factor - NDVI (normalized differential vegetation index). Triggering factor was tested to be the maximum rainfall intensity. These causative factors and triggering factors were used to build a landslide susceptibility model via logistic regression. Validation result shows that this model could be used for the prediction of future landslides. GIS is a useful tool for the construction of landslide prediction model and for application in regional planning, hazard mitigation, and sedim...
Kostanjek landslide is the largest landslide in the Republic of Croatia. It is located in the wes... more Kostanjek landslide is the largest landslide in the Republic of Croatia. It is located in the western part of the City of Zagreb, in residential area at the base of the south western slope of Mt. Medvednica. Investigation of this landslide is one of the objectives of the Japanese-Croatian five-year (2009-2014) scientific joint-research project ‘Risk Identification and Land-Use Planning for Disaster Mitigation of Landslides and Floods in Croatia’. The aim of investigation is to check and improve existing landslide model and to establish landslide monitoring system aimed at landslide risk mitigation. A comprehensive, real time monitoring system was designed during the period of 2010 and 2011, installation of equipment started in October 2011, while the completion of works will be finished during the 2013. Monitoring system consist of geodetic, geotechnical, seismological and hydrological equipment. Geodetic equipment includes 15 GNSS stations, geotechnical equipment includes 9 extenso...
This study used GIS as a tool to map storm-induced landslides from SPOT5 images. A digital elevat... more This study used GIS as a tool to map storm-induced landslides from SPOT5 images. A digital elevation model (DEM) of 10m x 10m resolution was used to extract geomorphic landslide causative factors: slope gradient, slope roughness, tangential curvature, relative slope height, total slope height and wetness index. A digital geological map was used to extract geologic causative factors: lithology and distance to the fault trace. SPOT images taken prior to a typhoon were also used to calculate an environmental factor - NDVI (normalized differential vegetation index). Triggering factor was tested to be the maximum rainfall intensity. These causative factors and triggering factors were used to build a landslide susceptibility model via logistic regression. Validation result shows that this model could be used for the prediction of future landslides. GIS is a useful tool for the construction of landslide prediction model and for application in regional planning, hazard mitigation, and sedim...
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