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| 利用D—InSAR技术研究临汾水准巨幅形变异常 | |
| 引用本文： | 刘瑞春,季灵运,韩胜,荆红亮,宁亚灵.利用D—InSAR技术研究临汾水准巨幅形变异常[J].山西地震,2012(1):24-27. |
| 作者姓名： | 刘瑞春 季灵运 韩胜 荆红亮 宁亚灵 |
| 作者单位： | 1. 山西省地震局,山西太原030021／太原大陆裂谷动力学国家野外科学观测研究站,山西太原030021 2. 中国地震局第二监测中心,陕西西安710054／中国地震局地质研究所,北京100029 3. 山西省地震局大同中心地震台,山西大同,037000 4. 山西省地震局临汾中心地震台,山西临汾,041000 |
| 基金项目： | 2011年度震情跟踪青年课题，山西省青年科技研究基金，2011年度全国地震重点危险区强化跟踪研究 |
| 摘 要： | 通过D-InSAR技术获取了临汾水准两次巨幅形变异常期间的区域垂直形变场，结果显示：2009年2月20日至2009年10月23日，临汾水准所在的龙祠区域无明显变形，临汾市区南部出现的10～20mm的下沉区域为周边密集分布的多个电厂大量开采地下水所致；2010年1月1日至2010年3月12日，大部分区域变形量基本为零，在临汾盆地内部存在一些小的、空间上不连续分布的沉降区域。幅度约为10mm左右，此类型的沉降区域多与城市发展过程中大规模抽取地下水有关。基于InSAR的结果，表明临汾水准BN，测点的巨幅形变异常在InSAR形变图上无法显示，属于局部地区小范围的变形。 |
| 关 键 词： | 形变 临汾水准 D—InSAR |
Study on the Huge Deformation Anomaly of Linfen Level By D-InSAR Technique |
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| LIU Rui-chun,JI Ling-yun,HAN Sheng,JING Hong-liang,NING Ya-ling.Study on the Huge Deformation Anomaly of Linfen Level By D-InSAR Technique[J].Earthquake Research in Shanxi,2012(1):24-27. | |
| Authors: | LIU Rui-chun JI Ling-yun HAN Sheng JING Hong-liang NING Ya-ling |
| Institution: | 1,2 (1.Earthquake Administration of Shanxi Province,Taiyuan,Shanxi 030021,China;2.National Continental Rift Valley Dynamics Observatory of Taiyuan,Taiyuan,Shanxi,030021,China;3.Second Crust Monitoring and Application Center,CEA,Xi’an, Sha’anxi 710054,China;4.Institute of Geology,CEA,Beijing 100029,China;5.Datong Central Seismological Station of Earthquake Administration of Shanxi Province,Datong,Shanxi 037000,China;6 Linfen Central Seismological Station of Earthquake Administration of Shanxi Province,Linfen,Shanxi 041000,China) |
| Abstract: | The ground vertical deformation field of Linfen area during the two times of huge deformation anomaly is figured out by D-InSAR technique.The result shows that from Feb.20th,2009 to Oct.23rd,2009,the Longci area where Linfen level locates had no significant deformation.A 10-20mm subsidence appeared in the south of Linfen city may be related with groundwater over-exploited by lots of power plants around.From Jan.1st,2010 to Mar.12th,2010,most of the region had almost no deformation and only some places had small-scale,discontinuous subsidence about 10mm within Linfen basin,which may be related with the over-exploitation of groundwater with the urban development.The huge abnormal changes of BM3 point of Linfen level couldn’t be displayed on the InSAR deformation map,which means that is such a change is only a localized deformation. |
| Keywords: | deformation Linfen level D-InSAR |
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