Articles | Volume 382
Pre-conference publication 22 Apr 2020
Pre-conference publication | 22 Apr 2020
Land subsidence monitoring based on PS-InSAR Persistent Scatterers identification with spectral analysis method
Di Zhou et al.
No articles found.
Huijun Li, Lin Zhu, Gaoxuan Guo, Yan Zhang, Zhenxue Dai, Xiaojuan Li, Linzhen Chang, and Pietro Teatini
Nat. Hazards Earth Syst. Sci., 21, 823–835,Short summary
We propose a method that integrates fuzzy set theory and a weighted Bayesian model to evaluate the hazard probability of land subsidence based on Interferometric Synthetic Aperture Radar technology. The proposed model can represent the uncertainty and ambiguity in the evaluation process, and results can be compared to traditional qualitative methods.
Lin Guo, Huili Gong, Xiaojuan Li, Lin Zhu, Wei Lv, and Mingyuan Lyu
Proc. IAHS, 382, 291–296,
Jiahui Zhou, Lin Zhu, Huili Gong, Huijun Li, Liping Zheng, Rui Cheng, and Hanrui Sun
Proc. IAHS, 382, 391–396,Short summary
Land subsidence is a serious geo-hazard in Beijing Plain, which has threatened the safety of the operation of the metropolis. This study derived the vertical and the East-West deformation, and the spatial variation and the impact factors of the vertical and the East-West deformation were analyzed. It found that the extraction of groundwater is the dominant factor affecting the spatial distribution of the vertical displacement, while the dominant factor of East-West deformation is not obvious.
Huijun Li, Lin Zhu, Huili Gong, Hanrui Sun, and Jie Yu
Proc. IAHS, 382, 505–510,
Yueting Li, Matteo Frigo, Yan Zhang, Lin Zhu, Massimiliano Ferronato, Carlo Janna, Xulong Gong, Jun Yu, Pietro Teatini, and Shujun Ye
Proc. IAHS, 382, 511–514,
Luo Yong, Zhao Long, Zhu Lin, Tian Fang, Lei Kunchao, and Sun Aihua
Proc. IAHS, 382, 715–719,Short summary
This article established a groundwater–subsidence model in a typical land subsidence region and classified an early land subsidence warning zone based on the results from the model. If the pumping of groundwater from the second and fourth aquifers was reduced by 50 % and pumping from the third aquifer was reduced by 60 %, the early warning level for land subsidence would be greatly reduced and would meet the requirements for land subsidence control.
Q. Zhou, W. Zhao, and J. Yu
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3, 2547–2551,
S. Jiao, J. Yu, Y. Wang, L. Zhu, and Q. Zhou
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-3, 691–698,
Lin Zhu, Huili Gong, Zhenxue Dai, Gaoxuan Guo, and Pietro Teatini
Hydrol. Earth Syst. Sci., 21, 721–733,Short summary
We developed a method to characterize the distribution and variance of the hydraulic conductivity k in a multiple-zone alluvial fan by fusing multiple-source data. Consistently with the scales of the sedimentary transport energy, the k variance of the various facies decreases from the upper to the lower portion along the flow direction. The 3-D distribution of k is consistent with that of the facies. The potentialities of the proposed approach are tested on the Chaobai River megafan, China.
F. Tian, J.-R. Liu, Y. Luo, L. Zhu, Y. Yang, and Y. Zhou
Proc. IAHS, 372, 49–52,
L. Zhu, J. Yu, Y. Liu, H. Gong, Y. Chen, and B. Chen
Proc. IAHS, 372, 227–229,Short summary
The earth fissures of geological structure are visualized in three dimensional domains through a volumetric modeling method. The topological relations between TIN, triangular prism and lines are constructed for further spatial calculation. This method can facilitate the mechanism for studying fissures.
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Fornaro, G., Serafino, F., and Soldovieri, F.: Three-Dimen-sional Focusing with Multipass SAR Data, IEEE T. Geosci. Remote, 41, 507–517, https://doi.org/10.1109/TGRS.2003.809934, 2003.
Hooper, A., Zebker, H., and Segall, P.: A new Method for Measuring Deformation on Volcanoes and Other Natuaral Terrains Deformation Using InSAR Persistent Scatterers, J. Geophys. Res. Lett., 31, 1–5, https://doi.org/10.1029/2004GL021737, 2004.
Tan, Z. Y. and Zhang, Y. B.: Research of Fast Fourier Transformation and Realization of MATLAB, J. China Sci. Tech. Info., 52, 179–188, https://doi.org/10.1109/TCE.2006.1605045, 2006.
Wang, Y. P.: Study on Land Subsidence Caused by Overexploiting Groundwater in Beijing, J. Site Investigation Sci. Tech., 5, 46–49, https://doi.org/10.3969/j.issn.1001-3946.2004.05.013, 2005.
Zhu, X. X. and Bamler, R.: Very High Resolution Spaceborne SAR Tomography in Urban Environment, IEEE T. Geosci. Remote, 48, 4296–4308, https://doi.org/10.1109/tgrs.2010.2050487, 2010.
To overcome the problem that layover scatterers with no amplitude stability and spatial coherence are lead to reliability insufficient and accuracy reduction in monitoring urban land subsidence, we applied the Fast Fourier Transform to convert Persistent Scatterers to frequency domain during the PS-InSAR identification process. The method could identify and separate single and layover scatterers, reduced the effect of layover scatterers, improved the accuracy of urban land subsidence monitoring.
To overcome the problem that layover scatterers with no amplitude stability and spatial...