InSAR applications for quarry monitoring
Abstract
The mining industry in Hungary has been gradually modernised over the last few decades. Stateof-the-art technologies are now used to monitor geometric changes in quarries. However, these technologies have spatial and temporal limitations. Microwave remote sensing technologies, on the other hand, allow for continuous and systematic observations. They provide surface acquisitions at each satellite pass, regardless of day and night or weather conditions. Therefore, they off er an ideal monitoring system. In this article, we provide a comprehensive overview of the potential of satellite radar interferometry for quarry monitoring, highlighting the benefi ts of the technology as well as its limitations. To monitor the stability of the Recsk mining operation of COLAS Északkő Ltd. between 2017 and 2023, we processed Sentinel-1 satellite radar images acquired within the framework of the European Space Agency’s Copernicus programme in four orbital geometries using cutting-edge interferometric stacking techniques. The processing results allowed the identifi cation of unstable parts of the quarry and the observation of their spatial and temporal development. Our research demonstrates that satellite radar measurements can be eff ectively integrated into stability studies and contribute to effi cient geotechnical investigations.
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