Study on surface settlement of Golmud city based on time series InSAR

doi:10.13474/j.cnki.11-2246.2020.0333

Abstract

Abstract: InSAR and related technologies have some advantages in urban land settlement monitoring. This paper uses the 37-sentiment Sentinel-1 satellite SAR image data from December 4, 2015 to January 10, 2018, based on InSAR time series analysis technology to monitor the surface deformation of the urban area and its surroundings in Golmud.The results show that 252 889 coherent points are extracted based on coherence and other indicators, with an average of 501 coherent points per square kilometer, after the mask removes the larger error points, 252 035 coherent points are actually used; the overall sedimentation rate of Golmud city and its surrounding suburbs is within 5 mm/a, no obvious subsidence area is found or large-scale settlement belt, the sedimentation rate in the southern part of the urban area is lower than that in the north.

Key words: plateau, Sentinel-1, InSAR, Golmud city, settlement monitoring

CLC Number:

P258

DOU Chao, ZHAO Lijiang, ZHANG Shengpeng, LIU Yuxin, MA Guobao. Study on surface settlement of Golmud city based on time series InSAR[J]. Bulletin of Surveying and Mapping, 2020, 0(10): 123-126.

References

[1] 晏明星.雷达差分干涉测量在唐山市地面沉降监测中的应用研究[D]. 成都:成都理工大学, 2008.
[2] 杨少华.城市建设引起地面沉降数值模拟研究[D]. 北京:中国地质大学(北京),2009.
[3] 沈科.区域地面沉降对(京沪)高速铁路路基的影响及对策研究[D]. 成都:西南交通大学,2013.
[4] 成英燕,贾有良,党亚民,等.用InSAR技术进行形变监测的研究[J].测绘科学,2006,31(3):56-58.
[5] 陈基伟.利用GPS-InSAR合成方法进行地面沉降研究的现状与展望[J].测绘科学,2003,28(4):69-71.
[6] FERRETTI A, PRATI C, ROCCA F. Analysis of permanent scatterers in SAR interferometry[C]//Proceedings of 2000 IEEE International Geoscience and Remote Sensing Symposium. Honolulu, HI:IEEE, 2000:761-763.
[7] 陈基伟. PS-InSAR技术地面沉降研究与展望[J]. 测绘科学, 2008, 33(5):88-90.
[8] 汪宝存,李芳芳,潘登,等.PS-InSAR技术在郑州市地面沉降调查中的应用[J].测绘科学, 2013, 38(5):43-45.
[9] BERARDINO P, FORNARO G, LANARI R, et al. A new algorithm for surface deformation monitoring based on small baseline differential SAR interferograms[J]. IEEE Transactions on Geoscience & Remote Sensing, 2003, 40(11):2375-2383.
[10] 张子文,杨帆,吴文豪,等.地下水开采与地面沉降关系的短基线集分析[J].测绘科学,2016, 41(6):64-69.
[11] 葛大庆.区域性地面沉降InSAR监测关键技术研究[D]. 北京:中国地质大学(北京), 2013.
[12] 白泽朝,靳国旺, 张红敏,等.天津地区Sentinel-1A雷达影像PSInSAR地面沉降监测[J].测绘科学技术学报,2017, 34(3):283-288.
[13] 孙晓鹏,鲁小丫,文学虎,等.基于SBAS-InSAR的成都平原地面沉降监测[J]. 国土资源遥感,2016, 28(3):123-129.
[14] 卢莹颜,惠庆,杨俊凯,等.不同分辨率DEM对InSAR变形监测精度的影响分析[J].测绘地理信息,2018,43(2):106-109.
[15] 汪生斌,肖勇,王万平,等.青海省格尔木山前平原区地下水动态特征分析[J]. 冰川冻土,2016, 38(1):241-247.