Time series dynamic prediction of surface deformation in mining areas can provide reference data for coal mine safety and production, which has important impacts. The combination interferometric synthetic aperture radar (InSAR) technology the probability integral method (PIM) is commonly used predicting deformation. However, most subsidence based on static PIM parameters, failing to achieve three-dimensional (3D) prediction. This paper proposed a 3D model (InSAR-3D-CTPIM) between InSAR...

In the context of global warming, air temperature Heihe basin in Northeast China has increased significantly, resulting degradation island permafrost. this paper, we used an elaborated time-series Interferometric Synthetic Aperture Radar (InSAR) strategy to monitor ground deformation area (Heilongjiang Province, China) and then analyzed permafrost characteristics from June 2007 December 2010. The results showed that region presented surface deformation, rate along line sight mainly varied...

Interferometric baseline estimation is a key procedure of interferometric synthetic aperture radar (SAR) data processing. The error the affects not only removal flat-earth phase, but also transformation coefficient between topographic phase and elevation, which will affect for differential SAR (D-InSAR) accuracy final generated digital elevation model (DEM) product (InSAR). To obtain highly accurate baseline, this paper firstly investigates geometry InSAR imaging establishes rigorous...

The Sentinel-1 provides an unprecedented opportunity for InSAR research and applications, especially in the field of fast accurate damage assessment, thanks to its extra wide swath, short revisit interval, free policy. Challenges also exist terrain observation by progressive scans mode synthetic aperture radar (TOPSAR) interferometric processing, example, coregistration TOPSAR images requires accuracy 0.001 pixels reduce phase jumps at burst overlap region 3°. To obtain a stack multitemporal...

Phase unwrapping (PU) is a key step in InSAR surface monitoring, which directly related to the accuracy of LOS displacement observations. Underground coal mining generally results large gradient displacements, producing dense and aliasing fringes interferograms. In this case it challenging accurately unwrap interferometric phases using traditional methods. This letter proposes an iterative algorithm over underground areas. Firstly, differential interferogram unwrapped by minimum cost flow...

Determining the geographic location and spatial distribution of underground goaf is great significance for prevention mining subsidence hazards detection illegal mining. However, traditional techniques mainly focus on geophysical methods that are labor intensive, have low efficiency, expensive. Due to large range off-site monitoring capability interferometric synthetic aperture radar (InSAR) techniques, research based InSAR measurements has been increasing. This paper proposes a new method...

Highways built in permafrost regions are susceptible to deformations and instability of the roadbed caused by climatic factors. Long-term deformation monitoring is essential reveal freeze-thaw related deformations. When using Interferometric Synthetic Aperture Radar (InSAR) for highway monitoring, majority different physical phase components usually considered as equally weighted, deformation-related mostly modeled with an empirical mathematical model. This may induce uncertainty...

Building on previous work by the authors flow and geomechanical simulations at InSalah CO2 storage site, a coupled flow-geomechanical simulation study has been carried out to better understand behaviour around one of injectors (KB-503). In order further improve match injection pressure KB-503 that is consistent with InSAR surface uplift data, an in-depth analysis pattern its temporal evolution was first out. The picture emerging preferential paths (along NW-SE maximum stress direction)...

The Lost Hills oilfield, located ∼70 km northwest of Bakersfield in the San Joaquin Valley, has a long history oil/gas extraction, and it suffers from long-term ground deformation. Many SAR datasets include information about oilfield over past two decades. This study focused on calculating analysing vertical deformation due to oil gas extraction proposed new strategy inspired by "Small Baseline Subset" idea for jointly processing multi-track images obtain time-series deformations....

Long-term deformation prediction and quantitative brine estimation are of great significance for safety precautions environmental protection in salt mining areas. Traditional Interferometric Synthetic Aperture Radar (InSAR) combined with Probability Integral Method (PIM) has the following limitations: mathematical empirical models mostly used InSAR modelling, which ignore mechanisms underground thus may limit accuracy observations; have theoretical contradictions inconsistencies future...

The previous multi-track InSAR (MTI) method can be used to retrieve mining-induced three-dimensional (3D) surface displacements with high spatial–temporal resolution by incorporating interferometric synthetic aperture radar (InSAR) observations a prior model. However, due the track-by-track strategy in MTI method, no redundant are provided estimate 3D displacements, causing poor robustness and further degrading accuracy of displacement estimation. This study presents an improved...