| 基于D-InSAR技术的金沙江地区滑坡形变监测与分析 |
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| 引用本文： | 齐麟,孔祥意,袁鑫,姜岩.基于D-InSAR技术的金沙江地区滑坡形变监测与分析[J].测绘与空间地理信息,2020(2):175-177,181. |
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| 作者姓名： | 齐麟 孔祥意 袁鑫 姜岩 |
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| 作者单位： | 山东科技大学测绘科学与工程学院;自然资源部国土卫星遥感应用中心 |
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| 摘 要： | 滑坡是发生在我国山区的主要地质灾害类型,金沙江地区由于地势较高、地形复杂、多云多雨的特点,给传统的滑坡监测增加了难度。合成孔径雷达差分干涉测量技术(Differential interferometry synthetic aperture radar,D-InSAR)已在滑坡地面沉降监测中得到了广泛应用。本文选取金沙江上游沿岸作为研究区域,基于2018年8月11日与9月28日的Sentinel-1A影像及SRTM1数据,利用GAMMA软件及D-InSAR技术监测到金沙江地区的地表形变,成功识别出金沙江右岸的一处滑坡灾害。研究结果显示,在此滑坡的坡顶部分出现了约2.5 cm的沉降,而在坡底部分由于崩塌物的累积,地面出现了约3 cm的抬升。从实验结果可以得出,InSAR技术是一种有效的滑坡变形监测手段,利用Sentinel-1A卫星的SAR数据对滑坡区域进行形变监测,可以得到较好的干涉结果。
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| 关 键 词： | 滑坡 沉降检测 Sentinel-1A卫星 合成孔径雷达差分干涉测量 |
Monitoring and Analysis of Landslide Deformation in Jinshajiang Area Based on D-InSAR Technology |
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| QI Lin,KONG Xiangyi,YUAN Xin,JIANG Yan.Monitoring and Analysis of Landslide Deformation in Jinshajiang Area Based on D-InSAR Technology[J].Geomatics & Spatial Information Technology,2020(2):175-177,181. |
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| Authors: | QI Lin KONG Xiangyi YUAN Xin JIANG Yan |
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| Institution: | (College of Geomatics,Shandong University of Science and Technology,Qingdao 266590,China;Land Satellite Remote Sensing Application Center,MNR,Beijing 100048,China) |
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| Abstract: | Landslides are the main types of geological disasters occurring in mountainous areas of China. Due to the high terrain,complex terrain,cloudy and rainy conditions,the Jinshajiang has increased the difficulty of traditional landslide monitoring. Differential interferometry synthetic aperture radar(D-InSAR) has been widely used in landslide ground settlement monitoring. This paper selects the upper reaches of the Jinshajiang as the research area. Based on the Sentinel-1A image and SRTM1 data on August 11 and September 28,2018,the surface deformation of the Jinshajiang area is monitored by GAMMA software and D-InSAR technology. A landslide disaster on the right bank of the Jinshajiang. The results of the study showed that about 2.5 cm of settlement occurred at the top of the slope of the landslide,and about 3 cm of uplift occurred on the ground due to the accumulation of collapse. It can be concluded from the experimental results that In SAR technology is an effective monitoring method for landslide deformation. Using the SAR data of Sentinel-1A satellite to monitor the deformation of the landslide area,better interference results can be obtained. |
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| Keywords: | landslide settlement detection Sentinel-1A satellite differential interferometry synthetic aperture radar |
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