The potential of low-cost UAVs and open-source photogrammetry software for high-resolution monitoring of alpine glaciers: A case study from the Kanderfirn (Swiss Alps)

This dataset contains high-resolution orthophotos (5 x 5 cm) and digital surface models (25 x 25 cm) of the Kandernfirn Glacier located in the Swiss Alps. Aerial images were aquired with a self-developed fixed-wing Unmanned Aerial Vehicle during ten surveys on five different days in 2017 and 2018. The open-source photogrammetry software OpenDroneMap (version 0.4.1) was used for image processing. The orthophotos and digital surface models were validated through dGNSS point measurements of ground control points. Please refer to the corresponding paper for information on the horizontal and vertical accuracy of the files.本数据集包含位于瑞士阿尔卑斯山区的坎德恩菲尔恩冰川（Kandernfirn Glacier）的高分辨率正射影像（orthophoto，分辨率5×5 cm）与数字表面模型（digital surface model，分辨率25×25 cm）。航空影像采集于2017年与2018年间的5个不同作业日，期间共开展10次航测作业，采集所用平台为自研固定翼无人机（Unmanned Aerial Vehicle, UAV）。影像处理工作采用开源摄影测量软件OpenDroneMap（版本0.4.1）完成。正射影像与数字表面模型的精度通过地面控制点的差分全球导航卫星系统（differential Global Navigation Satellite System, dGNSS）点位测量进行验证。如需了解该数据集文件的平面与高程精度相关信息，请参阅对应研究论文。