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Visual mapping of landslides from LiDAR imagery, Zagreb, Croatia (CROSBI ID 583849)

Prilog sa skupa u zborniku | izvorni znanstveni rad

Ferić, Pavle ; Mihalić, Snježana ; Krkač, Martin Visual mapping of landslides from LiDAR imagery, Zagreb, Croatia // Monitoring and analyses for disaster mitigation of landslides, debris flow and floods. Book of proceedings of the 2nd Japanese-Croatian Project Workshop / Ožanić, Nevenka ; Arbanas, Željko ; Mihalić, Snježana et al. (ur.). Rijeka: Sveučilište u Rijeci, 2012. str. 130-133

Podaci o odgovornosti

Ferić, Pavle ; Mihalić, Snježana ; Krkač, Martin

engleski

Visual mapping of landslides from LiDAR imagery, Zagreb, Croatia

This paper describes preliminary results of preparation of landslide inventory, as first phase in order to carry out the landslide hazard zonation. One subset of activities of the Japanese-Croatian 5-year scientific joint-research project ‘Risk Identification and Land-Use Planning for Disaster Mitigation of Landslides and Floods in Croatia’ have been implementing in the pilot area in the City of Zagreb (180 km2 of the hilly zone of the Mt. Medvednica) in order to develop landslide inventory, landslide susceptibility and hazard zonation. Landslides are significant problem in the hilly area of the Zagreb City, Croatia, and also difficult to identify in the densely urbanized and forested terrain. Landslides in the hilly area of the City of Zagreb are dominantly small and shallow movements of superficial deposits along contacts with fresh soils. Despite this, they cause significant economic losses by damaging houses and urban infrastructure. As most of these landslides are located under forest in hilly region, aerial photograph interpretation usually is not an appropriate landslide mapping method. This study tested the potential of LIDAR (Light Detection and Ranging) images for mapping small and shallow landslides under forest. Landslide inventory map was created for a 24 km2 area by applying the expert knowledge to LIDAR-derived hillshade, slope and contour line maps in a GIS environment. A total of 176 landslides were identified in the first phase of landslide inventory preparation, representing 13.3 percent of the pilot area in the City of Zagreb. Despite some limitations of LiDAR technology, using algorithm-enhanced LIDAR imagery does effectively “remove” vegetation that obscures many landslides, and is therefore a valuable tool for landslide inventories and investigations in forested regions such as the pilot area in the City of Zagreb.

Landslide mapping; LiDAR; inventory map

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Podaci o prilogu

130-133.

2012.

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objavljeno

978-953-6953-30-1

Podaci o matičnoj publikaciji

Monitoring and analyses for disaster mitigation of landslides, debris flow and floods. Book of proceedings of the 2nd Japanese-Croatian Project Workshop

Ožanić, Nevenka ; Arbanas, Željko ; Mihalić, Snježana ; Marui, Hideaki ; Dragičević, Nevena

Rijeka: Sveučilište u Rijeci

Podaci o skupu

Nepoznat skup

predavanje

29.02.1904-29.02.2096

Povezanost rada

Rudarstvo, nafta i geološko inženjerstvo