上海国土资源2016，Vol.37Issue(1)：66-68,81,4.DOI:10.3969/j.issn.2095-1329.2016.01.015
黄土灌溉区域地面沉降InSAR监测结果分析
InSAR monitoring result analysis of land subsidence in loess irrigation area
摘要
Abstract
Synthetic aperture radar interferometry is a newly developed technology with potential for terrestrial observation from space, and is now being used to obtain information about the earth’s surface. This technology can be used to monitor land subsidence deformation, which is a slow process that can affect large areas and a major geological hazard for cities. We monitored the characteristics of loess irrigated areas using short baseline set technology (SBAS-InSAR technique) with 11 X-band TerraSAR images of the South Jingyang platform. The region of study is located downstream of the Jinghe river’s south bank, about 50 km from Xi’an, Shaanxi. Results demonstrated that the South Jingyang platform has two ground subsidence areas and the accumulated deformation along the proifle reached 6.4 cm and 2.7 cm, respectively, in 121 days. We investigated the distribution of water wels, which related to ground subsidence areas. Based on the deformation rate and water level elevation data analysis, we found that land subsidence is caused by irrigation.关键词
地面沉降/合成孔径雷达干涉测量/小基线集技术/时间序列/黄土灌溉区Key words
land subsidence/InSAR/smal baseline subsets (SBAS) InSAR/time series/loess irrigation area分类
地质学引用本文复制引用
何杨,赵超英,张勤..黄土灌溉区域地面沉降InSAR监测结果分析[J].上海国土资源,2016,37(1):66-68,81,4.基金项目
国家重点基础研究计划(973计划)项目(2014CB744703) （973计划）
中国自然科学基金项目(41372375) （41372375）
