Two decades of GPS/GNSS and DInSAR monitoring of Cardona salt mines (NE of Spain) – natural and mining-induced mechanisms and processes
<p>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 o...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2020-04-01
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| Series: | Proceedings of the International Association of Hydrological Sciences |
| Online Access: | https://www.proc-iahs.net/382/167/2020/piahs-382-167-2020.pdf |
| Summary: | <p>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 human-induced complex processes.</p> |
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| ISSN: | 2199-8981 2199-899X |