摘要
针对甘肃黑方台地区滑坡频发,严重威胁当地居民人身和财产安全的问题,该文利用SBAS-InSAR技术对该地区2018年8月6日—2019年3月22日Sentinel-1A雷达卫星数据进行处理,对该地区进行形变监测。用SBAS-InSAR技术获取了黑方台地区的形变速率图,识别出台塬周边的主要形变区有陈家北、磨石沟、新塬北、方台、党川、焦家西;进一步结合该地区的日均降水量和地表温度数据,分析了党川罗家坡段和磨石沟滑坡群的形变速率与降水量和地表温度之间的关系。结果表明:党川罗家坡段形变速率与降水量和地表温度具有较强的相关性,磨石沟滑坡群由于处于农田灌溉区域,受到灌溉量的影响大于降水量和地表温度。
Aiming at the problem of frequent landslides in Heifangtai area of Gansu Province,which seriously threatens the personal and property safety of local residents.In this paper,SBAS-InSAR technology was used to process sentinel-1 A radar satellite data from August 6,2018 to March 22,2019.Deformation monitoring was conducted in the area.The main results are as follows:The deformation rate map of Heifangtai area is obtained by SBAS-InSAR technique.The main deformation areas around the tableland are identified as Chenjiabei,Moshigou,Xinyuanbei,Fangtai,Dangchuan and Jiaojiaxi.Further combining daily precipitation and surface temperature data from the region.The relationship between the deformation rate of luojiapo section and Moshigou landslide group and precipitation and surface temperature is analyzed.The results show that:the deformation rate of Luojiapo section in Dangchuan has a strong correlation with precipitation and surface temperature.Moshigou landslide group is located in the irrigation area of farmland.The amount of irrigation is more important than precipitation and surface temperature.
作者
刘陈伟
蒋亚楠
廖露
燕翱翔
罗袆沅
LIU Chenwei;JIANG Yanan;LIAO Lu;YAN Aoxiang;LUO Huiyuan(School of Earth Sciences,Chengdu University of Technology,Chengdu 610059,China;State Key Laboratory of Geohazard Prevention and Geoenvironment Protection,Chengdu University of Technology,Chengdu 610059,China;Surveying and Mapping Technology Service Center of Sichuan Bureau of Surveying,Mapping and Geoinformation,Chengdu 610081,China)
出处
《测绘科学》
CSCD
北大核心
2022年第5期56-65,共10页
Science of Surveying and Mapping
基金
四川省科技厅重点研发项目(2020YFS0353,2020YFG0209)
四川省教育厅重点研发计划项目(18ZA0054)
