The rapid development of land subsidence in Caofeidian area has threatened its function as international transport and commercial trade center, and this area has become one of the most serious areas in Tangshan. Therefore it is very important to comprehensively understand land subsidence distribution of Caofeidian Newly-development Area, especially to grasp main control factors of different subsidence regions. Based on medium and high resolution radar data, the authors obtained whole land cumulative subsidence condition of Caofeidian Newly-development Area by PSInSAR. The results show that the overall surface subsidence is generally more than 77 mm, and there are a couple of typical land subsidence abnormal places in the southwest of Caofeidian Area and in the middle and south of Caofeidian Industry Zone. Moreover, the subsidence gradients in subsidence cone centers are larger. According to site survey, it can be found that the complicated geological condition is an objective factor resulting in land subsidence, and over-extraction of groundwater and large-scale engineering disturbance seem to be the external factors that induce and accelerate land subsidence in Caofeidian Newly-development Area.
李曼, 葛大庆, 张玲, 刘斌, 郭小方, 王艳. 基于PSInSAR技术的曹妃甸新区地面沉降发育特征及其影响因素分析[J]. 国土资源遥感, 2016, 28(4): 119-126.
LI Man, GE Daqing, ZHANG Ling, LIU Bin, GUO Xiaofang, WANG Yan. Characteristics and influencing factors of land subsidence in Caofeidian Newly-developed Area based on PSInSAR technique. REMOTE SENSING FOR LAND & RESOURCES, 2016, 28(4): 119-126.
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2016, Vol. 28 
