Compared to opencut mining, underground coal mining is more common in Australia due to its lesser impact on the environment. Although there are several underground mining methods, such as the longwall, pillar, bord, and miniwall, longwall mining is the most commonly used method due to its high efficiency. However, longwall mining does lead to significant ground subsidence. Mining subsidence is ...

In this paper, in view of the scope coal mining subsidence, magnitude subsidence deformation and impact on buildings (structures), InSAR technology is selected for monitoring, time series analysis method combined with D-InSAR processing, Sentinel- 1 Satellite IW data RADARSAT-2 satellite XF have been monitored four years mining-affected area its surrounding areas. The results show that there ar...

The use of Interferometric Synthetic Aperture Radar (InSAR) data has great potential for monitoring large scale forest above ground biomass (AGB) in the tropics due to the increased ability to retrieve 3D information even under cloud cover. To date; results in tropical forests have been inconsistent and further knowledge on the accuracy of models linking AGB and InSAR height data is crucial for...

Volcanoes as targets for InSAR vary greatly in the quality of their returned phase signal. There are two end-member volcano types from this perspective. Basaltic, low-relief shield volcanoes with frequent effusive eruptions and shallow magma reservoirs generally give excellent coherence and large magnitude ground deformations (~1m) that can be easily detected and modelled. However, their indivi...

We quantify the bias and uncertainty of interferometric synthetic aperture radar (InSAR) displacement time series and their derivatives, the displacement velocities, by analyzing the systematic and stochastic components of the temporal variation of the tropospheric delay. The biases due to the systematic seasonal delay depend on the SAR acquisition times, whereas the uncertainties depend on the...

S U M M A R Y Errors in the satellite orbits are considered to be a limitation for Interferometric Synthetic Aperture Radar (InSAR) time-series techniques to accurately measure long-wavelength (>50 km) ground displacements. Here we examine how orbital errors propagate into relative InSAR line-of-sight velocity fields and evaluate the contribution of orbital errors to the InSAR uncertainty. We e...

Within the last decade, Interferometric Synthetic Aperture Radar (INSAR) processing has emerged as an important extension of conventional SAR because it can be used to infer topographic heights of the imaged terrain. The demand for high-resolution, large coverage-area topographic data is driving new INSAR systems to acquire data in long strips. When processing long strips of INSAR data, the mot...

Errors in radar satellite orbit determination are common problems in radar interferometry (InSAR). For example, when trying to locate a radar test site with known geographic coordinates using the geocoding information in SAR image (the latitude and longitude of the four image corners), the location may be well away from the true position. Another example is when there is indeed a significant si...

In radar images, point scatterers provide reflections that can often be attributed to a single physical object, usually smaller than the resolution cell size. Stable point scatterers with high backscatter coefficients through time (mainly ’man-made features’) are potential targets for InSAR deformation analysis. A-priori knowledge about the observation statistics of InSAR point scatterer measur...