Avalanche dynamics measurement by pulsed Doppler radar
Avalanche dynamics measurement by pulsed Doppler radar
复制标题
脉冲多普勒雷达雪崩动力学测量
DOI：
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发表时间：
2001
影响因子：
2.9
通讯作者：
Lambert Rammmer
中科院分区：
文献类型：
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作者：
H. Schreiber;W. Randeu;H. Schaffhauser;Lambert Rammmer
摘要本文介绍了脉冲多普勒雷达在冰雪雪崩动态特性测量中的应用。该仪器由格拉茨技术大学通信和波浪传播研究所开发和制造，由因斯布鲁克的奥地利雪崩和激流研究所（AIATR）运营。该雷达在野外活动中获得的数据用于验证和优化雪崩模型和仿真工具。除了描述雷达的技术原理，如何测量动态参数并将其呈现给用户，以及如何使用这些数据来完成雪崩速度和跳动距离的确定，本文还介绍了雷达在挪威Ryggfonn成功参与了一次全尺寸雪崩实验，并对收集到的数据进行了评估。这次测量活动是挪威地质技术研究所、奥斯陆和AIATR的联合实验。
Abstract This paper presents the application of a pulsed Doppler radar for the measurement of dynamic properties of snow and ice avalanches. The instrument was developed and built by the Institute of Communications and Wave Propagation, Technical University Graz, and is operated by the Austrian Institute for Avalanche and Torrent Research (AIATR), Innsbruck. The data acquired by this radar during field campaigns are used to verify and optimize avalanche models and simulation tools. As well as describing the radar’s technical principle, how the dynamic parameters are measured and presented to the user and how these data can be used to accomplish the determination of avalanche velocity and runout distance, the paper deals with the participation of the radar in a successful full-scale snow-avalanche experiment in Ryggfonn, Norway, and evaluates the collected data. This measurement campaign was a joint experiment by the Norwegian Geotechnical Institute, Oslo, and AIATR.