Decadal Surface Changes and Displacements in Switzerland

Bickel Valentin Tertius; Manconi Andrea

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Decadal Surface Changes and Displacements in Switzerland

机译：瑞士的年代际表面变化和位移

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Multi-temporal, high-resolution, and homogeneous geospatial datasets acquired by space- and/or airborne sensors provide unprecedented opportunities for the characterization and monitoring of surface changes on very large spatial scales. Here, we demonstrate how an off-the-shelf, open-source image correlation algorithm can be combined with SwissALTI3D LiDAR-derived elevation data from different tracking periods to create country-scale surface displacement and vertical change maps of Switzerland, including Liechtenstein, with minimal computational effort. The results show that glacier displacement and ablation make up the most significant fraction of the detected surface changes in the last two decades. In addition, we identify numerous landslides and other geomorphic features, as well as manmade changes such as construction sites and landfills. All produced maps and data products are available online, free of charge.

机译：时段遥测、高分辨率和均匀地理空间数据集被空间——和/或收购机载传感器提供前所未有的描述和机会监测表面变化非常大空间尺度。现成的,开源的图像相关性可以结合SwissALTI3D算法LiDAR-derived从不同的高程数据跟踪时间创建国家规模的表面位移和垂直变化的地图瑞士、列支敦士登,包括最小的计算工作。冰川位移和消融最重要的的一部分表面的变化在过去的二十年。我们识别大量的山体滑坡和其他地貌特性,以及人造的建筑工地和垃圾填埋场等变化。所有制作的地图和数据产品是可用的在网上,免费的。

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《Journal of geovisualization and spatial analysis》 |2022年第2期|共9页
作者
Bickel Valentin Tertius; Manconi Andrea;
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作者单位

Swiss Fed Inst Technol;

Inst Snow & Avalanche Res SLF;

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原文格式 PDF
正文语种英语
中图分类自然地理学;
关键词
Image correlation; Change detection; LiDAR; Surface displacement; Switzerland; Liechtenstein;

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Decadal Surface Changes and Displacements in Switzerland

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