Results 1 to 10 of about 987 (171)

Assessing the Use of GACOS Products for SBAS-InSAR Deformation Monitoring: A Case in Southern California [PDF]

Sensors, 2019
The Generic Atmospheric Correction Online Service (GACOS) products for interferometric synthetic aperture radar (InSAR) are widely used near-real-time and global-coverage atmospheric delay products which provide a new approach for the atmospheric ...
Qijie Wang, Wenyan Yu, Bing Xu, Guoguang Wei   +3 more
doaj   +4 more sources

Land Subsidence Monitoring Method in Regions of Variable Radar Reflection Characteristics by Integrating PS-InSAR and SBAS-InSAR Techniques

Remote Sensing, 2022
In the InSAR solution, the uneven distribution of permanent scatterer candidates (PSCs) or slowly decoherent filtering phase (SDFP) pixel density in a region of variable radar reflection feature can cause local low accuracy in single interferometry. PSCs
Peng Zhang, Zihao Guo, Shuangfeng Guo, Jin Xia   +3 more
doaj   +3 more sources

Research on the Applicability of DInSAR, Stacking-InSAR and SBAS-InSAR for Mining Region Subsidence Detection in the Datong Coalfield

Remote Sensing, 2022
Intensive and large-scale underground coal mining has caused geological disasters such as local ground subsidence, cracks and collapse in the Datong coalfield, China, inducing serious threats to local residents.
Yaozong Xu, Tao Li, Xinming Tang, Xiang Zhang, Hongdong Fan, Yuewen Wang   +5 more
doaj   +3 more sources

Accuracy verification and evaluation of small baseline subset (SBAS) interferometric synthetic aperture radar (InSAR) for monitoring mining subsidence

European Journal of Remote Sensing, 2021
This study investigated the role of the number of differentialinterferograms and coherent threshold values on the accuracy of SBAS InSAR (small baseline subset interferometric synthetic aperture radar) results for specific applications in Jiyang Coal ...
Qiuxiang Tao, Fengyun Wang, Zaijie Guo, Leyin Hu, Chen Yang, Tongwen Liu   +5 more
doaj   +2 more sources

An Improved SBAS-InSAR Processing Method Considering Phase Consistency: Application to Landslide Monitoring in Hualong County, Qinghai Province, China [PDF]

Sensors
Phase consistency is a critical prerequisite for achieving high-precision time-series InSAR deformation retrieval. However, conventional SBAS-InSAR methods provide only limited consideration of phase consistency during the inversion process.
Wulinhong Luo, Bo Liu, Guangcai Feng, Zhiqiang Xiong, Wei Yin, Haiyan Wang, You Yu, Peiyu Chen, Jixiong Yang   +8 more
doaj   +2 more sources

Landslide Susceptibility Mapping with Integrated SBAS-InSAR Technique: A Case Study of Dongchuan District, Yunnan (China) [PDF]

Sensors, 2022
Landslide susceptibility maps (LSM) are often used by government departments to carry out land use management and planning, which supports decision makers in urban and infrastructure planning. The accuracy of conventional landslide susceptibility maps is
Zhifu Zhu, Shu Gan, Xiping Yuan, Jianming Zhang   +3 more
doaj   +2 more sources

Surface deformation extraction from small baseline subset synthetic aperture radar interferometry (SBAS-InSAR) using coherence-optimized baseline combinations

GIScience & Remote Sensing, 2022
Surface deformation data can be used to provide early warnings of geohazards and are useful in a variety of research fields. The Small BAseline Subset InSAR (SBAS-InSAR) boosts the data sampling rate and improves the accuracy of deformation extraction by
Shunyao Wang, Guo Zhang, Zhenwei Chen, Hao Cui, Yuzhi Zheng, Zixing Xu, Qihan Li   +6 more
doaj   +2 more sources

Review of the SBAS InSAR Time-series algorithms, applications, and challenges

Geodesy and Geodynamics, 2022
In the past 30 years, the small baseline subset (SBAS) InSAR time-series technique has emerged as an essential tool for measuring slow surface displacement and estimating geophysical parameters. Because of its ability to monitor large-scale deformation with millimeter accuracy, the SBAS method has been widely used in various geodetic fields, such as ...
Shaowei Li, Wenbin Xu, Zhiwei Li
exaly   +3 more sources

Accuracy of Sentinel-1 PSI and SBAS InSAR Displacement Velocities against GNSS and Geodetic Leveling Monitoring Data

Remote Sensing, 2021
Correct use of multi-temporal Interferometric Synthetic Aperture Radar (InSAR) datasets to complement geodetic surveying for geo-hazard applications requires rigorous assessment of their precision and accuracy.
Francesca Cigna, Rubén Esquivel Ramírez, Deodato Tapete   +2 more
doaj   +3 more sources

Monitoring Land Subsidence in Wuhan City (China) using the SBAS-InSAR Method with Radarsat-2 Imagery Data [PDF]

Sensors, 2019
Wuhan city is the biggest city in central China and has suffered subsidence problems in recent years because of its rapid urban construction. However, longtime and wide range monitoring of land subsidence is lacking. The causes of subsidence also require
Yang Zhang, Yaolin Liu, Manqi Jin, Ying Jing, Yi Liu, Yanfang Liu, Wei Sun, Junqing Wei, Yiyun Chen   +8 more
doaj   +2 more sources