DInSAR measurements of ground deformation by sinkholes, mining subsidence, and landslides, Ebro River, Spain

Álamo, Carmen Castañeda del; Gutiérrez, Francisco; Manunta, Michele; Arnedo, Jorge Pedro Galve

doi:10.1002/esp.1848

Cited by 76 publications

(52 citation statements)

References 80 publications

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“…This is due to the fact that dissolution processes and associated motions are generally faster than the maximum potential motion that PSI techniques can estimate before encountering phase unwrapping problems (i.e., 15 cm/year for ERS or ENVISAT data with 35 days repeat cycle). As of today, only in a few cases InSAR-based studies have been successful to image land motions associated with karstic features, and these mainly relate to conventional InSAR applications, and only in a few instances to multi-interferogram techniques (e.g., CASTAÑ EDA et al 2009;CLOSSON et al 2005;FERRETTI et al 2004;GUTIÉRREZ et al 2011), to the best of our knowledge.…”

Section: Discussionmentioning

confidence: 99%

Natural and Anthropogenic Geohazards in Greater London Observed from Geological and ERS-1/2 and ENVISAT Persistent Scatterers Ground Motion Data: Results from the EC FP7-SPACE PanGeo Project

Cigna

Jordan

Bateson

et al. 2014

Pure Appl. Geophys.

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Abstract-We combine geological data and ground motion estimates from satellite ERS-1/2 and ENVISAT persistent scatterer interferometry (PSI) to delineate areas of observed natural and anthropogenic geohazards in the administrative area of Greater London (United Kingdom). This analysis was performed within the framework of the EC FP7-SPACE PanGeo project, and by conforming to the interpretation and geohazard mapping methodology extensively described in the Production Manual (cf. http://www. pangeoproject.eu). We discuss the results of the generation of the PanGeo digital geohazard mapping product for Greater London, and analyse the potential of PSI, geological data and the PanGeo methodology to identify areas of observed geohazards. Based on the analysis of PSI ground motion data sets for the years 1992-2000 and 2002-2010 and geology field campaigns, we identify 25 geohazard polygons, covering a total of *650 km 2 . These include not only natural processes such as compaction of deposits on the River Thames flood plain and slope instability, but also anthropogenic instability due to groundwater management and changes in the Chalk aquifer, recent engineering works such as those for the Jubilee Line Extension project and electricity tunnelling in proximity to the River Thames, and the presence of made ground. In many instances, natural and anthropogenic observed geohazards overlap, therefore indicating interaction of different processes over the same areas. In terms of ground area covered, the dominant geohazard is anthropogenic land subsidence caused by groundwater abstraction for a total of *300 km 2 , followed by natural compression of River Thames sediments over *105 km 2 . Observed ground motions along the satellite line-of-sight are as high as ?29.5 and -25.3 mm/year, and indicate a combination of land surface processes comprising ground subsidence and uplift, as well as downslope movements. Across the areas of observed geohazards, urban land cover types from the Copernicus (formerly GMES) EEA European Urban Atlas, e.g., continuous and discontinuous urban fabric and industrial units, show the highest average velocities away from the satellite sensor, and the smallest standard deviations (*0.7-1.0 mm/year). More rural land cover types such as agricultural, semi-natural and green areas reveal the highest spatial variability (up to *4.4 mm/year), thus suggesting greater heterogeneity of observed motion rates within these land cover types. Areas of observed motion in the PSI data for which a geological interpretation cannot be found with sufficient degree of certainty are also identified, and their possible causes discussed. Although present in Greater London, some geohazard types such as shrink-swell clays and ground dissolution are not highlighted by the interpretation of PSI annual motion rates. Reasons for absence of evidence of the latter in the PSI data are discussed, together with difficulties related to the identification of good radar scatterers in landsliding areas.

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Section: Discussionmentioning

confidence: 99%

Natural and Anthropogenic Geohazards in Greater London Observed from Geological and ERS-1/2 and ENVISAT Persistent Scatterers Ground Motion Data: Results from the EC FP7-SPACE PanGeo Project

Cigna

Jordan

Bateson

et al. 2014

Pure Appl. Geophys.

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“…Unfortunately, we have not detected displacements associated to dissolution-induced subsidence, even though the time span covered by SAR measurements (2002)(2003)(2004)(2005)(2006)(2007)(2008)(2009)(2010) has coincided with a period of high collapse occurrence (13 collapses between 2006 and 2009). Castañeda et al [61] were able to detect karst subsidence in the Ebro Valley (Spain) with a similar resolution (90 × 90 m 2 ) and using the same DInSAR processing technique. However, the karst processes described in their study area are widely different from those observed in the Konya basin.…”

Section: Karst Processes and Land Subsidencementioning

confidence: 99%

DInSAR-Based Detection of Land Subsidence and Correlation with Groundwater Depletion in Konya Plain, Turkey

et al. 2017

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Abstract:In areas where groundwater overexploitation occurs, land subsidence triggered by aquifer compaction is observed, resulting in high socio-economic impacts for the affected communities. In this paper, we focus on the Konya region, one of the leading economic centers in the agricultural and industrial sectors in Turkey. We present a multi-source data approach aimed at investigating the complex and fragile environment of this area which is heavily affected by groundwater drawdown and ground subsidence. In particular, in order to analyze the spatial and temporal pattern of the subsidence process we use the Small BAseline Subset DInSAR technique to process two datasets of ENVISAT SAR images spanning the 2002-2010 period. The produced ground deformation maps and associated time-series allow us to detect a wide land subsidence extending for about 1200 km 2 and measure vertical displacements reaching up to 10 cm in the observed time interval. DInSAR results, complemented with climatic, stratigraphic and piezometric data as well as with land-cover changes information, allow us to give more insights on the impact of climate changes and human activities on groundwater resources depletion and land subsidence.

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“…Airborne surveys using laser altimetry (LiDAR) can pick up subsidence on buildings (Waltham et al, 2005). Satellite monitoring using DInSAR, which provides precise measurement of surface deformation, can be used to identify structures affected by subsidence, to measure the rate of settlement and probably to detect precursor displacements of catastrophic collapse events (Castañeda et al, 2009). If the worst areas can be avoided during this early planning stage the project can become safer and more cost-effective.…”

Section: Surveying Sinkhole Susceptibility Gis and Planningmentioning

confidence: 99%

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

Cooper

Gutiérrez

2013

Treatise on Geomorphology

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Synopsis/Abstract 153 wordsGypsum dissolves rapidly underground and at the surface forming gypsum karst features that include caves, subsidence areas and sinkholes. Mapping these landforms, understanding the gypsum karst and local hydrogeology, and producing sinkhole susceptibility and hazard maps are crucial for development and public safety. Situations that change the local hydrogeology, such as dams, water abstraction or injection/drainage, can accelerate dissolution and subsidence processes increasing the severity of the problems; dams and canals built on gypsum karst can leak or fail catastrophically. Gypsum karst problems can be mitigated by careful surveying and scientific investigation followed by phased preventive planning, ground investigation and construction incorporating sinkhole-proof designs. Towns and cities, including parts of Paris (France), Dzerzhinksk (Russia), Madrid and Zaragoza (Spain), Birzai (Lithuania) and Ripon and Darlington (UK), are developed on such ground requiring local planning guidelines and special construction methods. Roads, railways, pipelines and bridges are particularly vulnerable to such subsidence and require special consideration.

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DInSAR measurements of ground deformation by sinkholes, mining subsidence, and landslides, Ebro River, Spain

Cited by 76 publications

References 80 publications

Natural and Anthropogenic Geohazards in Greater London Observed from Geological and ERS-1/2 and ENVISAT Persistent Scatterers Ground Motion Data: Results from the EC FP7-SPACE PanGeo Project

Natural and Anthropogenic Geohazards in Greater London Observed from Geological and ERS-1/2 and ENVISAT Persistent Scatterers Ground Motion Data: Results from the EC FP7-SPACE PanGeo Project

DInSAR-Based Detection of Land Subsidence and Correlation with Groundwater Depletion in Konya Plain, Turkey

6.35 Dealing with Gypsum Karst Problems: Hazards, Environmental Issues, and Planning

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