Monitoring the regional deformation of loess landslides on the Heifangtai terrace using the Sentinel-1 time series interferometry technique
Monitoring the regional deformation of loess landslides on the Heifangtai terrace using the Sentinel-1 time series interferometry technique
复制标题
利用Sentinel-1时间序列干涉技术监测黑方台阶地黄土滑坡区域变形
DOI：
10.1007/s11069-019-03703-3
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发表时间：
2019-09
期刊：
影响因子：
3.7
通讯作者：
Zhou Dongdong
中科院分区：
文献类型：
--
作者：
Meng Qingkai;Xu Qiang;Wang Baocun;Li Weile;Peng Ying;Peng Dalei;Qi Xing;Zhou Dongdong
甘肃省黑方台阶地是黄土滑坡研究的热点地区，每年都有大规模、连续的滑坡发生。监测滑坡的时空变形，获取滑坡的前兆信息，对滑坡灾害预测和风险管理具有重要意义。本文收集了2015年3月至2017年11月期间新发射的Sentinel-1a使用新型地形观测与渐进扫描（TOPS）模式的51个场景，并使用小基线子集干涉合成孔径雷达技术生成TOPS预处理链，以获得变形时间序列。研究结果表明：（1）沿最陡边坡共检测到44个活动滑坡，平均变形速率为-12.3 ~58.57mmyr-1，其中黄土-基岩滑坡18个，黄土流12个，黄土流滑坡7个，黄土滑坡7个;（2）根据高相干点分布，识别出4个典型活动区和2个潜在危险区，沿陡坡沿着的平均测量速度和高分辨率正射图像;（3）地质结构和特殊地貌（例如，裂缝、天坑和凹沟）主要归因于长期灌溉引起的反应性。最后，我们的研究还表明，潜在的能力哨兵-1 TOPS图像应用于监测黄土滑坡，这是必不可少的风险缓解和应急管理。
The Heifangtai terrace of Gansu Province is a hotspot for loess landslide research, as massive and continuous landslides occur here every year. Detecting the spatial and temporal deformations of landslides and acquiring precursor information are very important for hazard prediction and risk management. In this paper, 51 newly launched Sentinel-1a scenes using the novel terrain observation with progressive scans (TOPS) mode from March 2015 to November 2017 are gathered, and a preprocessed chain of TOPS with the small baseline subset interferometric synthetic aperture radar technology is generated to obtain the deformation time-series. Our results show that (1) 44 active landslides with mean deformation velocities ranging from − 12.3 to − 58.57 mm yr−1along the steepest slope, were detected and consisted of 18 loess-bedrock landslides, 12 loess flows, 7 loess flow-slides, and 7 loess slides; (2) four typical active regions and two potential risk places were recognized on the basis of high coherent point distribution, the average measured velocities along the steep slope and high-resolution orthographic images; (3) geological structures and special geomorphologies (e.g., cracks, sinkholes and concave gullies) can be mainly attributed to induce reactivity via long term irrigation. Finally, our research also demonstrates the potential ability of Sentinel-1 TOPS images to be applied to the monitoring of loess landslides, which is essential for risk mitigation and emergence management.
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DOI：
10.1109/igarss.1999.772069
发表时间：
1999-06
期刊：
IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293)
影响因子：
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作者：
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通讯作者：
R. Scheiber;A. Moreira
DOI：
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发表时间：
2007-04
期刊：
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影响因子：
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作者：
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通讯作者：
G. Fornaro;A. Pauciullo;F. Serafino
影响因子：
8.2
作者：
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通讯作者：
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DOI：
10.1016/j.jag.2011.10.010
发表时间：
2013-04
期刊：
Int. J. Appl. Earth Obs. Geoinformation
影响因子：
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作者：
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通讯作者：
Peng Liu;Zhenhong Li;T. Hoey;C. Kıncal;Jingfa Zhang;Q. Zeng;J. Muller
影响因子：
4.8
作者：
Nestor Yague-Martinez;F. De Zan;P. Prats-Iraola
通讯作者：
Nestor Yague-Martinez;F. De Zan;P. Prats-Iraola