Academic Journal
InSAR-based mapping of ground deformation caused by industrial waste disposals: the case study of the Huelva phosphogypsum stack, SW Spain
| العنوان: | InSAR-based mapping of ground deformation caused by industrial waste disposals: the case study of the Huelva phosphogypsum stack, SW Spain |
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| المؤلفون: | González Barrionuevo, Felipe |
| بيانات النشر: | Springer |
| سنة النشر: | 2022 |
| المجموعة: | Universidad de Huelva: Arias Montano |
| مصطلحات موضوعية: | SAR, InSAR, Sentinel-1, Subsidence, Phosphogypsum, Ground deformation, 25 Ciencias de la Tierra y del Espacio |
| الوصف: | Close to the city of Huelva, SW Spain, and near the Atlantic Ocean, there is a phosphogypsum (PG) stack that accumulates 100 Mt of wastes and extends over 1000 ha. The stack lies directly over estuarine unconsolidated sediments with no protective layer in between. Here, we evaluate for the first time the structural stability of the PG stack, monitoring the deformation suffered by the salt-marsh basement. Through the web-based Geohazard Exploitation Platform (GEP) of the European Space Agency (ESA), a specific differential SAR interferometry (DInSAR) algorithm known as arallel Small Baseline Subset (P-SBAS) has been used to process 279 ESA Sentinel-1 images acquired between October 2016 and June 2021. Resulting displacement maps and time-series curves reveal vertical displacements of up to 16 cm/year. This vertical motion has been associated to subsidence. In parallel with subsidence, horizontal movements > 2.5 cm/year have been also accounted and linked to talus destabilization. The analysis also demonstrates that the Huelva PG stack is vulnerable to adverse weather condition. The present study demonstrates that the InSAR-based methods are effective tools for monitoring the stability and ground motion of large waste stockpiles. ; This work was financed by the ESA thorough a project covered by the NOR Sponsorship Program. The project (ID: Felipe González) was intended to use the Geohazards TEP service (https:// geoha zards- tep. eu/#!) for the analysis of the subsidence of SW Spain. Special thanks are extended to Hervé Caumont (Terradue Programme Manager) who patiently provided technical support during all the analysis. The original manuscript was significantly improved thanks to the valuable suggestions and comments of two anonymous reviewers. Aerial photograph in Figure 1 was provided by the Mesa de la Ría Association. Funding for open access charge: Universidad de Huelva / CBUA. ; Ciencias de la Tierra |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | https://hdl.handle.net/10272/21370 |
| DOI: | 10.1007/s10064-022-02809-6 |
| الاتاحة: | https://hdl.handle.net/10272/21370 https://doi.org/10.1007/s10064-022-02809-6 |
| Rights: | Atribución-NoComercial-SinDerivadas 3.0 España ; http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ; open access |
| رقم الانضمام: | edsbas.7E33047E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1007/s10064-022-02809-6 |
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