Two decades of GPS/GNSS and DInSAR monitoring of Cardona salt mines (NE of Spain) - natural and mining-induced mechanisms and processes

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Abstract

Cardona area presents surface rising and subsidence active movements. In 1999 a series of sinkholes appeared due to the infiltration of Cardener River water into the mine tunnels, damaging surface infrastructures. Since then, high precision GNSS/GPS was used annually to position a network of 40 points spread over the area. GNSS/GPS work is carried out with the Fast-Static (FS) method. Additionally the surface movements have been monitored with satellite Differential Interferometry Synthetic Aperture Radar (DInSAR). Results indicate that the movement has a complex spatial distribution although consistent along time. Some areas show surface rising during the last two decades, while other areas show subsidence. The use of the two techniques allowed to determine the most plausible causes of these movements generated by a set of interwoven natural and humaninduced complex processes.

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APA

Rodriguez-Lloveras, X., Puig-Polo, C., Lantada, N., Gili, J. A., & Marturià, J. (2020). Two decades of GPS/GNSS and DInSAR monitoring of Cardona salt mines (NE of Spain) - natural and mining-induced mechanisms and processes. In Proceedings of the International Association of Hydrological Sciences (Vol. 382, pp. 167–172). Copernicus GmbH. https://doi.org/10.5194/piahs-382-167-2020

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