...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earth Surface Processes and Landforms: The journal of the British Geomorphological Research Group >A review of terrestrial radar interferometry for measuring surface change in the geosciences
【24h】

A review of terrestrial radar interferometry for measuring surface change in the geosciences

机译：地球科学中用于测量表面变化的地面雷达干涉技术的综述

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a review of the current state of the art in the use of terrestrial radar interferometry for the detection of surface changes related to mass movement. Different hardware-types and acquisition concepts are described, which use either real or synthetic aperture for radar image formation. We present approaches for data processing procedures, paying special attention to the separation of high resolution displacement information from atmospheric phase variations. Recent case studies are used to illustrate applications in terrestrial radar interferometry for change detection. Applications range from detection and quantification of very slow moving (millimeters to centimeters per year) displacements in rock walls from repeat monitoring, to rapid processes resulting in fast displacements (50m/yr) acquired during single measurement campaigns with durations of only a few hours. Fast and episodic acting processes such as rockfall and snow avalanches can be assessed qualitatively in the spatial domain by mapping decorrelation caused by those processes. A concluding guide to best practice outlines the necessary preconditions that have to be fulfilled for successful application of the technique, as well as in areas characterized by rapid decorrelation. Empirical data from a Ku-band sensor show the range of temporal decorrelation of different surfaces after more than two years for rock-surfaces and after a few seconds to minutes in vegetated areas during windy conditions. The examples show that the displacement field can be measured for landslides in dense grassland, ice surfaces on flowing glaciers and snowpack creep. Copyright (c) 2014 John Wiley & Sons, Ltd.
机译：本文介绍了使用地面雷达干涉测量技术检测与质量运动有关的表面变化的最新技术。描述了不同的硬件类型和采集概念，它们使用真实或合成孔径进行雷达成像。我们提出了数据处理程序的方法，特别注意了高分辨率位移信息与大气相位变化的分离。最近的案例研究用于说明在地面雷达干涉测量中用于变化检测的应用。其应用范围包括从重复监测到岩壁中非常缓慢的移动（每年毫米至厘米）位移的检测和定量，到快速过程导致仅一次测量活动中获得的快速位移（每年50m / yr），持续时间仅为几个小时。可以通过映射由那些过程引起的去相关，在空间域中定性地评估快速和偶发的作用过程，例如落石和雪崩。最佳实践的总结指南概述了成功应用该技术以及以快速去相关为特征的领域必须满足的必要前提条件。来自Ku波段传感器的经验数据显示，岩石表面超过两年后以及有风条件下在植被区域中经过几秒到几分钟之后，不同表面的时间去相关范围。实例表明，可以测量稠密草地的滑坡，流动的冰川的冰面和积雪的蠕变的位移场。版权所有（c）2014 John Wiley＆Sons，Ltd.

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号