1.Geospatial Information Institute, Information Engineering University, Zhengzhou 450001, China 2.Institute of Surveying, Mapping and Geoinformation, Henan Provincial Bureau of Geo-Exploration and Mineral Development, Zhengzhou 450006, China 3.School of Surverying and Geoinformatics, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
According to the relationship between the deformation position determination, the deformation gradient estimation and the coherence of the InSAR monitoring surface deformation in the mining area, the Sentinel-1A data were used to study the applicability of the InSAR technique in the monitoring of the mining area. The experimental results show that the surface type of bare land and village is maintained at high coherence throughout the year under the condition of semi - humid monsoon climate in the warm and temperate zone in Henan Province. Visual identification can effectively determine the deformation position of the mining area. The deformation range can not be accurately determined by the deformation gradient function model. The deformation gradient is also within the range of the detectable range. The field coverage type can effectively determine the deformation of the mine in summer. In addition, the deformation gradient is located on the detectable minimum deformation gradient by using the deformation gradient function model. Furthermore, the applicability of the model is proved by the leveling data.
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