Crucecita Alluvial fan's Topography

Topographies used for the study: A modeling methodology to study the tributary-junction alluvial fan connectivity during a debris flow event on NHESS1- A reconstructed pre-event topography based on satellite images and the post-event Lidar topography. This dataset has a 1x1m2 horizontal resolution.2.- Post-event topography lidar scan (acquired in Feb-March 2017 by the Chilean Ministry of Public Works). This dataset has a 1x1m2 horizontal resolution and was post-processed to eliminate vegetation and building.3.- A hypothetical topography that considers a 10x10 m rectangular channel as mitigation works to study different scenarios.本研究使用的地形数据集：用于探究泥石流事件中支流交汇冲积扇连通性的建模方法（研究成果刊载于NHESS1），包含以下三类地形数据：1. 基于卫星影像重建的灾前地形与灾后激光雷达（LiDAR）地形，该数据集水平分辨率为1米×1米；2. 灾后激光雷达扫描地形，由智利公共工程部于2017年2-3月采集，水平分辨率为1米×1米，且已经过后处理以去除植被与建构筑物；3. 假设性地形，该地形将10米×10米的矩形河道作为防灾减灾工程，用于开展不同情景下的相关研究。