摘要
【目的】获取桂林市兴安县羊角山区域的地面形变监测结果,探究人类活动对地面形变的影响。【方法】采用2017年3月17日—2021年12月9日覆盖羊角山地区的90景升轨Sentinel-1A卫星影像作为数据源,基于SBAS-InSAR方法对该区域进行地面形变监测分析,SBASInSAR方法能够有效地减弱时空失相干扰和大气效应引起的误差,提高地面形变监测结果的准确性。【结果】在长时间序列的小尺度地表开发形变监测上使用SBAS-InSAR方法仍能得到较高精度的结果,研究区域地表平均形变速率处于-18 mm/a~10 mm/a,在研究区的西南方向累积形变量最大,达到了-60 mm。【结论】该区域由于开发时间长度和开发强度的不同表现出不同的形变结果,且随着对该区域的持续开发,整体形变量有继续增加的趋势。
[Purposes] To obtain the monitoring results of ground deformation in Yangjiao Mountain,Xing′an County,Guilin City,and show the impact of human activities on ground deformation.[Methods]In this paper,90 satellite images of Satinel-1A,which covered the Yangjiao Mountain area from March17,2017 to December 9,2021,are used as the data source to monitor and analyze the ground deformation in the area based on the SBAS-InSAR method,which can effectively reduce the errors caused by spatiotemporal incoherence and atmospheric effects,and improve the accuracy of the ground deformation monitoring results.[Findings] The SBAS-InSAR method can still obtain high precision results on the small-scale surface development deformation monitoring of long time series.The average surface deformation rate in the study area is between-18 mm/a and 10 mm/a,and the maximum cumulative deformation in the southwest of the study area is-60 mm.[Conclusions] The region shows different deformation results due to different development time length and development intensity,and with the continuous development of the region,the overall deformation variable continues to increase.
作者
杨泽鹏
文泰翔
YANG Zepeng;WEN Taixiang(Guilin University of Electronic Technology,Guilin 541000,China)
出处
《河南科技》
2023年第6期113-116,共4页
Henan Science and Technology
基金
广西创新驱动发展专项资金项目(桂科AA20302022)
中国科学院战略性先导科技专项(A类)子课题“桂林市SDG综合应用示范”项目(XDA19090130)。
