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Landslide inventory mapping using LiDAR data in the City of Zagreb (Croatia)
Journal of Maps ( IF 2.2 ) Pub Date : 2019-10-01 , DOI: 10.1080/17445647.2019.1671906
Sanja Bernat Gazibara 1 , Martin Krkač 1 , Snježana Mihalić Arbanas 1
Affiliation  

Landslides in the Podsljeme area of the City of Zagreb cause significant economic losses, which have been increasing over the last several decades due to the urbanisation of hilly areas and the influence of climate changes. An airborne LiDAR digital terrain model (DTM) with a spatial resolution of 30 × 30 cm was used to prepare a landslide inventory map of the pilot area (21 km2) with more than 700 identified landslides. The area of the smallest identified landslide is 43 m2, while 90% of the landslides are between 100 and 2,000 m2. The frequency–size distribution of all mapped landslides in the pilot area shows a very high level of landslide inventory completeness. Therefore, it is concluded that the LiDAR-based terrain model is a valuable tool for the preparation of detailed landslide inventories in heavily vegetated regions such as the hilly area of Medvednica Mt.



中文翻译:

使用萨格勒布市(克罗地亚)的LiDAR数据绘制滑坡清单

萨格勒布市Podsljeme地区的滑坡造成了巨大的经济损失,由于丘陵地区的城市化和气候变化的影响,这种损失在过去几十年中一直在增加。使用空间分辨率为30×30 cm的机载LiDAR数字地形模型(DTM)来准备试验区域(21 km 2)的滑坡清单地图,其中包含700多个已识别的滑坡。最小的滑坡面积为43 m 2,而90%的滑坡在100至2,000 m 2之间。试点地区所有测绘的滑坡的频率大小分布表明滑坡清单的完整性很高。因此,可以得出结论,基于LiDAR的地形模型是准备在植被茂密的地区(如Medvednica山的丘陵地区)详细的滑坡清单的宝贵工具。

更新日期:2019-10-01
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