摘要
合成孔径雷达干涉测量(INSAR)是开展地灾监测预警重要途径。通过获取2015年12月至2018年2月欧空局环境监测卫星IW模式下Sentinel-1A影像数据,利用StaMPS-PS(Stanford Method for Persistent Scatters PS-INSAR)技术,持续开展惠州市地表沉降形变监测。试验表明:惠州市整体形变较小,StaMAP-PS模型平均形变速率在-3~3 mm/y之间,累积沉降量最大为-24 mm,抬升量最大为8 mm。龙门县南部地区和博罗县城区有部分下沉情况,最大形变速率达到-12 mm/y;惠城、惠阳区及惠东县近海域有部分地区出现轻微的抬升,但不超过3 mm/y。
Synthetic aperture radar interferometry(INSAR)is an important way to carry out ground disaster monitoring and early warning.By acquiring the Sentinel-1A image data in the IW mode of the ESA environmental monitoring satellite from December 2015 to February 2018,and using StaMPS-PS(Stanford Method for Persistent Scatters PS-INSAR)technology,the paper continues to carry out the monitoring of surface subsidence and deformation in Huizhou.The test shows that the overall deformation of Huizhou City is small,the average deformation rate of StaMAP-PS model is between-3~3 mm/y,the maximum cumulative settlement is-24 mm,and the maximum lift is 8 mm.The southern area of Longmen County and the urban area of Boluo County have partial subsidence,and the maximum deformation rate reaches-12 mm/y;some areas in Huicheng,Huiyang District and Huidong County have slight uplift,but no more than 3 mm/y.
作者
罗莉
王斌
LUO Li;WANG Bin(Surveying and Mapping Engineering Company of Guangdong Province,Guangzhou 510670,China;Surveying and Mapping Institute Lands and Resource Department Guangdong Province,Guangzhou 510500,China)
出处
《华南地震》
2021年第1期102-107,共6页
South China Journal of Seismology
基金
广东省自然资源厅基础研究项目(2018)。
