ISPRS-Archives ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences ISPRS-Archives Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci. 2194-9034 Copernicus Publications Göttingen, Germany 10.5194/isprs-archives-XLII-3-559-2018 RESEARCH ON THE CRUSTAL DEFORMATION CHARACTERISTICS IN BEIJING USING INSAR AND GNSS TECHNOLOGY Hu L. 1 Xing C. 1 Dai K. 2 3 Li Y. 4 Li Z. 5 https://orcid.org/0000-0002-8054-7449 Zhang J. 3 Yan R. 1 Xu B. 1 Fan Z. 1 Beijing Earthquake Agency, China College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China State Key Laboratory of Geohazard Prevention and Geoenviroment Protection, Chengdu University of Technology, China Key Laboratory of Crustal Dynamics, Institute of Crustal Dynamics, CEA, China School of Civil Engineering and Geosciences, Newcastle University, UK 30 04 2018 XLII-3 559 564 This work is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this licence, visit https://creativecommons.org/licenses/by/4.0/ This article is available from https://isprs-archives.copernicus.org/articles/isprs-archives-XLII-3-559-2018.html The full text article is available as a PDF file from https://isprs-archives.copernicus.org/articles/isprs-archives-XLII-3-559-2018.pdf

In this paper, we tried to reveal the characteristics of the crustal deformation in both the horizontal and vertical directions in Beijing using InSAR and GNSS observations. Regarding the serious land subsidence in Beijing plain, we also analysed the mechanism of the occurrence and development of the subsidence in combination with the tectonic settings. The GNSS results reveal that the crust in Beijing shows a significant left-lateral trend movement in the horizontal direction, while the vertical direction shows a gentle rise in the mountainous region and a significant subsidence in the plain area. The INSAR results shows a detailed subsidence area and the deformation characteristics were analyzed considering the fault activity. The foundation of geological structure dominates the subsiding in the Beijing Plain. The exploitation of groundwater exacerbates the level of subsidence and has new development. The active faults controlled the development of the subsiding in present days.