Investigating snowpack volumes and icing dynamics in the moraine of an Arctic catchment using UAV photogrammetry
Investigating snowpack volumes and icing dynamics in the moraine of an Arctic catchment using UAV photogrammetry
复制标题
使用无人机摄影测量研究北极流域冰碛的积雪量和结冰动态
DOI：
10.1111/phor.12217
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Alexander Prokop
中科院分区：
文献类型：
--
作者：
E. Bernard;J. Friedt;F. Tolle;M. Griselin;C. Marlin;Alexander Prokop
研究了冰前碛对北极冰川水收支的贡献的评估方法。需要不同季节的高空间分辨率高程模型来估计冬季在集水盆地这一部分积累并在融化季节释放到河流中的冰雪量。激光雷达目前为数字高程模型（DEM）的生成提供了最高的分辨率。本文考虑了商用现成DJI Phantom 3 Professional无人机（UAV）用于获取航空摄影的补充使用，结合运动恢复结构（SfM）分析，用于DEM计算。DEM数据集之间的差异在4月（最大积雪）和9月（最小积雪）产生的体积差异归因于积雪或结冰的形成。短时间内的重复测量突出了冰碛中积雪储存和融化动力学的过程。
Methods for assessing the contribution of the proglacial moraine into the water budget of an Arctic glacier are investigated. High spatial resolution elevation models at different seasons are needed to estimate the volume of ice and snow accumulated during winter in this part of the catchment basin and released into rivers during the melting season. Lidar currently provides the highest resolution for the generation of digital elevation models (DEMs). This paper considers the complementary use of a commercial off‐the‐shelf DJI Phantom 3 Professional unmanned aerial vehicle (UAV) for acquiring aerial photography, combined with structure‐from‐motion (SfM) analysis, for DEM computation. DEM differences between datasets acquired in April (maximum snow accumulation) and September (minimum snow cover) yield a volume difference attributed either to snow cover or icing formation. Repeated measurements over a short period highlight the processes of snow‐cover storage in the moraine and melting dynamics.
影响因子：
2.4
作者：
Eltner, Anette;Schneider, Danilo
通讯作者：
Schneider, Danilo