ABSTRACT

The surroundings of Corigliano and Rossano (NE Calabria) were damaged by a short-lasting and localized rainstorm on 12 August 2015, when more than 230 mm of rain in sixteen hours caused damage exceeding 100 million euros. In the Map, shallow landslides triggered by the event are shown at 1:50,000 scale, together with areas affected by soil erosion and flooding, and most damaged sites; historical landslides are also mapped. The main slope-stability controlling factors are mapped at 1:200,000 scale, and an event-based geomorphological landslide inventory of the most damaged sector (Citrea basin) is provided at 1:10,000 scale. Isohyets (cumulative over 16 h), as obtained by interpolating rain-gauge and weather-radar data by Kriging techniques, are shown together with the density of event landslides. Estimated rain maxima (ca. 506 mm in 16 h) by far overcome measured ones, and ground effects well fit the sectors heavily stricken by the storm.

摘要

科里利亚诺和罗萨诺（卡拉布里亚东北部）周边地区在 2015 年 8 月 12 日遭受了一场短暂的局部暴雨，16 小时内超过 230 毫米的降雨造成超过 1 亿欧元的损失。在地图中，事件引发的浅层滑坡以1:50,000的比例显示，以及受水土流失和洪水影响的区域以及大部分受损地点；还绘制了历史滑坡。主要的边坡稳定性控制因素以 1:200,000 的比例绘制，并以 1:10,000 的比例提供了受灾最严重区域（Citrea 盆地）的基于事件的地貌滑坡清单。通过克里金技术对雨量计和天气雷达数据进行插值而获得的等雨线（超过 16 小时的累积）与事件滑坡的密度一起显示。估计降雨最大值（约