Application of ground SAR in landslide deformation monitoring

doi:10.13474/j.cnki.11-2246.2022.0204

Abstract

Abstract: Ground based InSAR is a new technical means developed in recent years to mesure surface deformation based on ground-based SAR (GB-SAR). It has high resolution, and can monitor in real time, and achieve millimeter deformation monitoring accuracy. It provides an advanced technical means for real-time monitoring and early warning of short-range landslide. This paper takes a landslide in Lancang River as the study object, a fixed station is set up on the opposite bank of the landslide to collect GB-SAR data according to the fixed frequency. The interferogram pair is formed by two images successively, then the high coherent point target is extracted by the coherent threshold method, and finally the deformation result of landslide is extracted by the deformation model. The research shows that the GB-SAR is able to obtain the whole deformation boundary, spatial distribution and time change process of the landslide, which is very effective for real-time monitoring of landslide disaster. The relevant research of this paper can provide references for landslide disaster monitoring and early warning.

Key words: GB-SAR, GB-InSAR, landslides, deformation monitoring

CLC Number:

P258

ZHOU Zhiwei, CHENG Xiang, ZHOU Wei, HAO Weifeng, XIAO Haibin, CHEN Hongjie, YANG Kui. Application of ground SAR in landslide deformation monitoring[J]. Bulletin of Surveying and Mapping, 2022, 0(7): 60-63.

References

[1] 郭华东,张露.雷达遥感六十年:四个阶段的发展[J].遥感学报,2019,23(6):1023-1035.
[2] 廖明生,董杰,李梦华,等.雷达遥感滑坡隐患识别与形变监测[J].遥感学报,2021,25(1):332-341.
[3] 刘斌,葛大庆,李曼,等.地基InSAR评估爆破作业对露天采矿边坡的稳定性影响[J].遥感学报,2018,22(S1):139-145.
[4] 杨红磊,彭军还,崔洪曜.GB-InSAR监测大型露天矿边坡形变[J].地球物理学进展,2012,27(4):1804-1811.
[5] ZOU J,ZHANG S,QIN L I,et al.Review of ground-based SAR interferometry for deformation measurement[J].Journal of Geomatics,2016,41(6):5-8.
[6] 刘斌,葛大庆,李曼,等.地基合成孔径雷达干涉测量技术及其应用[J].国土资源遥感,2017,29(1):1-6.
[7] 刘斌,葛大庆,李曼,等.地基InSAR技术及其典型边坡监测应用[J].中国地质调查,2018,5(1):73-81.
[8] NOFERINI L,PIERACCINI M,MECATTI D,et al.Permanent scatterers analysis for atmospheric correction in ground-based SAR interferometry[J].IEEE Transactions on Geoscience and Remote Sensing,2005,43(7):1459-1471.
[9] 吴星辉,马海涛,张杰.地基合成孔径雷达的发展现状及应用[J].武汉大学学报(信息科学版),2019,44(7):1073-1081.
[10] LOMBARDI L,NOCENTINI M,FRODELLA W,et al.The Calatabiano landslide (southern Italy):preliminary GB-InSAR monitoring data and remote 3D mapping[J].Landslides,2017,14(2):685-696.
[11] FRODELLA W,SALVATICI T,PAZZI V,et al.GB-InSAR monitoring of slope deformations in a mountainous area affected by debris flow events[J].Natural Hazards and Earth System Sciences,2017,17(10):1779-1793.
[12] INTRIERI E,GIGLI G,NOCENTINI M,et al.Sinkhole monitoring and early warning:an experimental and successful GB-InSAR application[J].Geomorphology,2015,241:304-314.
[13] FERRIGNO F,GIGLI G,FANTI R,et al.GB-InSAR monitoring and observational method for landslide emergency management:the Montaguto earthflow (AV,Italy)[J].Natural Hazards and Earth System Sciences,2017,17(6):845-860.
[14] DEL VENTISETTE C,INTRIERI E,LUZI G,et al.Using ground based radar interferometry during emergency:the case of the A3 motorway (Calabria region,Italy) threatened by a landslide[J].Natural Hazards and Earth System Sciences,2011,11(9):2483-2495.
[15] 黄其欢,张理想.基于GBInSAR技术的微变形监测系统及其在大坝变形监测中的应用[J].水利水电科技进展,2011,31(3):84-87.
[16] 王军飞,肖慎轲,刘东烈,等.地基合成孔径雷达的边坡形变监测应用研究[J].测绘科学,2021,46(5):58-65.
[17] 秦宏楠,马海涛,于正兴.地基SAR技术支持下的滑坡预警预报分析方法[J].武汉大学学报(信息科学版),2020,45(11):1697-1706.
[18] 刘龙龙,张继贤,王世杰,等.新型FMCW地基SAR和三维激光扫描仪在大坝变形监测中的应用[J].测绘通报,2019(3):76-80.
[19] 徐亚明,周校,王鹏,等.地基雷达干涉测量的环境改正方法研究[J].大地测量与地球动力学,2013,33(3):41-43.