Sentinel-1 DInSAR for Monitoring Active Landslides in Critical Infrastructures: The Case of the Rules Reservoir (Southern Spain)

Reyes-Carmona, Cristina; Barra, Anna; Arnedo, Jorge Pedro Galve; Monserrat, Oriol; Pérez-Peña, Jose Vicente; Mateos, Rosa María; Notti, Davide; Ruano, Patricia; Millares, Agustín; López‐Vinielles, Juan; Azañón, José Miguel

doi:10.3390/rs12050809

Cited by 49 publications

(40 citation statements)

References 44 publications

(39 reference statements)

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“…The rapid rate of subsidence measured by the InSAR analysis (even after the lagoon drought) and the large-scale fall of the rupture collectively indicated that there was a liquid action process underway internally (Rotta et al, 2020). Reyes-Carmona et al (2020) used the DInSAR technique to recognize and monitor landslides in the Rules Reservoir (Spain). The integration of the DInSAR results with a comprehensive geomorphological study made it possible to understand the typology, evolution and triggering factors of three active landslides (Reyes-Carmona et al, 2020).…”

Section: Geodetic Measurementsmentioning

confidence: 99%

“…Reyes-Carmona et al (2020) used the DInSAR technique to recognize and monitor landslides in the Rules Reservoir (Spain). The integration of the DInSAR results with a comprehensive geomorphological study made it possible to understand the typology, evolution and triggering factors of three active landslides (Reyes-Carmona et al, 2020). Latrubesse et al (2020) used a series of images from the Sentinel-1 Satellite (SAR), data from the SRTM Mission (Shuttle Radar Topography Mission) and daily rain measurements to assess the sudden violation of a saddle dike on July 23, 2018, at the perimeter the Xe Nammoy Rev.…”

Section: Geodetic Measurementsmentioning

confidence: 99%

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Technical and scientific aspects of dams in Brazil: a theoretical approach

Pacheco¹,

Henriques²,

Ribeiro³

2020

Rev. ambiente água

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The safety of a dam is the result of a series of factors, including structural, geotechnical, hydraulic, operational and environmental aspects. In Brazil, Law No. 12.334 of September 2010 establishes the National Dam Safety Policy, which requires safety reports and monitoring inspections for existing dams. The inspection comprises a set of devices installed on the dam, which are used to assess the structural behavior based on performance parameters of the structure, such as displacements, flows, stresses, slopes and others. Dam auscultation procedures, historically, have been performed since the 1950s. Since then, there have been significant advances in instrumentation and dam auscultation methods. This work presents a theoretical approach on technical and scientific aspects of dams in Brazil, based on a state-of-the-art literature review, involving auscultation of dams in the context of design codes, concepts, instrumentation, safety, procedures and monitoring methods.

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Section: Geodetic Measurementsmentioning

confidence: 99%

Section: Geodetic Measurementsmentioning

confidence: 99%

Technical and scientific aspects of dams in Brazil: a theoretical approach

Pacheco¹,

Henriques²,

Ribeiro³

2020

Rev. ambiente água

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“…Ground deformation resulting from variations in the volume of surface water resources, such as impounded reservoirs, can also trigger landslides and sudden mass movements; if these feed into lakes. Associated large surges of water can lead to dam instability, threatening lives and properties along the shores [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Multi-Sensor InSAR Assessment of Ground Deformations around Lake Mead and Its Relation to Water Level Changes

et al. 2021

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Changes in subsurface water resources might alter the surrounding ground by generating subsidence or uplift, depending on geological and hydrogeological site characteristics. Improved understanding of the relationships between surface water storage and ground deformation is important for design and maintenance of hydraulic facilities and ground stability. Here, we construct one of the longest series of Interferometric Synthetic Aperture Radar (InSAR) to date, over twenty-five years, to study the relationships between water level changes and ground surface deformation in the surroundings of Lake Mead, United States, and at the site of the Hoover Dam. We use the Small Baseline Subset (SBAS) and Permanent scatterer interferometry (PSI) techniques over 177 SAR data, encompassing different SAR sensors including ERS1/2, Envisat, ALOS (PALSAR), and Sentinel-1(S1). We perform a cross-sensor examination of the relationship between water level changes and ground displacement. We found a negative relationship between water level change and ground deformation around the reservoir that was consistent across all sensors. The negative relationship was evident from the long-term changes in water level and deformation occurring from 1995 to 2014, and also from the intra-annual oscillations of the later period, 2014 to 2019, both around the reservoir and at the dam. These results suggest an elastic response of the ground surface to changes in water storage in the reservoir, both at the dam site and around the reservoir. Our study illustrates how InSAR-derived ground deformations can be consistent in time across sensors, showing the potential of detecting longer time-series of ground deformation.

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“…In recent years, various time series SAR techniques have been successfully employed to detect slope instability in relation to hydrological force as a potential triggering factor 7 , 14 – 17 . The available SAR archive in this landslide area is covered by Sentinel 1A/B data over one ascending and two descending satellite passes completed between 2014 and 2020.…”

Section: Introductionmentioning

confidence: 99%

Transient motion of the largest landslide on earth, modulated by hydrological forces

Aslan

Michele

Raucoules

et al. 2021

Sci Rep

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Sea-level rise of the Caspian Sea (CS) during the early Khvalynian (approximately 40–25 ka BP) generated hundreds of giant landslides along the sea’s ancient coastlines in western Kazakhstan, which extended hundreds of kilometers. Although similar landslides have been observed along the present-day coastlines of the CS in the area of a prominent high escarpment, it remains unclear whether some of these ancient landslides are still active and whether the movement is slow or catastrophic, as previously suggested. The present study is the first to show evidence proving that the geomorphic responses to sea-level changes of the CS that were triggered in the Pleistocene are currently active. Using interferometric synthetic aperture radar (InSAR) data, we show that one of these giant landslides occurring along the western shore of the Kara-Bogaz-Gol (KBG) lagoon of the CS presents active transient motion, which makes it the world’s largest active landslide reported thus far. Extending more than 25 km along the eastern coast of the inundated KBG depression in a N–S direction with maximum landward expansion of 5 km from the shoreline to the flat Ustyurt Plateau, this landslide conveys ~ 10 × 109 m3 rocks toward the lagoon at a rate of ~ 2.5 cm/year. This event releases a nearly episodic aseismic moment of 6.0 × 1010 Nm annually, which is equivalent to the response of an Mw 5.1 earthquake. We analyze the present-day evolution of this giant coastal landslide at high temporal and spatial resolutions using Sentinel-1 radar images acquired on descending and ascending modes every 12 days between 2014 and 2020. Modelling with elastic dislocations suggests that the KBG landslide was accommodated mostly by a shallow basal décollement with a nearly horizontal listric slip plane. Moreover, our analysis reveals week-long accelerating slip events at changing amplitudes that occur seasonally with slow, lateral spreading rather than sudden catastrophic motion. A strong correlation between the episodic slip events and seasonal water-level changes in the KBG lagoon suggests a causative mechanism for the transient accelerating slip events. Although water-level changes are widely acknowledged to trigger transient motion on a land mass, such movement, which is similar to a silent earthquake, has not been observed thus far at this mega scale; on an extremely low-angle detachment planes at < 5° with modulation by sea-level changes. This study suggests that present-day sea-level changes can reactivate giant landslides that originated 40–25 ka.

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Sentinel-1 DInSAR for Monitoring Active Landslides in Critical Infrastructures: The Case of the Rules Reservoir (Southern Spain)

Cited by 49 publications

References 44 publications

Technical and scientific aspects of dams in Brazil: a theoretical approach

Technical and scientific aspects of dams in Brazil: a theoretical approach

Multi-Sensor InSAR Assessment of Ground Deformations around Lake Mead and Its Relation to Water Level Changes

Transient motion of the largest landslide on earth, modulated by hydrological forces

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