Exploitation of Large Archives of ERS and ENVISAT C-Band SAR Data to Characterize Ground Deformations

Ventisette, Chiara Del; Ciampalini, Andrea; Manunta, Michele; Calò, Federica; Paglia, Luca; Ardizzone, Francesca; Mondini, Alessandro Cesare; Reichenbach, Paola; Mateos, Rosa María; Bianchini, Silvia; Garcia, Immaculada; Fusi, B.; Deák, Zsuzsa Villő; Rádi, Károly; Graniczny, Marek; Kowalski, Zbigniew; Piątkowska, Anna; Przyłucka, Maria; Retzo, Hugo; Strozzi, Tazio; Colombo, Davide; Mora, Oscar; Sánchez, Francisco; Herrera, Gerardo; Moretti, Sandro; Casagli, Nicola; Guzzetti, Fausto

doi:10.3390/rs5083896

Cited by 52 publications

(43 citation statements)

References 42 publications

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“…One of these web tools is the SBAS InSAR service. This service implements the unsupervised P-SBAS algorithm [23,24] that follows the SBAS approach [25], which is a widely-used technique to carry out multi-temporal DInSAR analyses [26][27][28][29]. Inputs of the P-SBAS algorithm are a temporal data set of SAR images of the same region with the same acquisition geometry, the satellite position of all the acquisitions, and the Digital Elevation Model (DEM) of the analyzed area [23].…”

Section: Gep the G-pod Environment And The Sbas Insar Servicementioning

confidence: 99%

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

et al. 2017

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Abstract:The analysis of remote sensing data to assess geohazards is being improved by web-based platforms and collaborative projects, such as the Geohazard Exploitation Platform (GEP) of the European Space Agency (ESA). This paper presents the evaluation of a surface velocity map that is generated by this platform. The map was produced through an unsupervised Multi-temporal InSAR (MTI) analysis applying the Parallel-SBAS (P-SBAS) algorithm to 25 ENVISAT satellite images from the South of Spain that were acquired between 2003 and 2008. This analysis was carried out using a service implemented in the GEP called "SBAS InSAR". Thanks to the map that was generated by the SBAS InSAR service, we identified processes not documented so far; provided new monitoring data in places affected by known ground instabilities; defined the area affected by these instabilities; and, studied a case where GEP could have been able to help in the forecast of a slope movement reactivation. This amply demonstrates the reliability and usefulness of the GEP, and shows how web-based platforms may enhance the capacity to identify, monitor, and assess hazards that are associated to geological processes.

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Section: Gep the G-pod Environment And The Sbas Insar Servicementioning

confidence: 99%

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

et al. 2017

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“…Several advances have been made, in the last decade, in the use of radar images to map and monitor ground deformations related to geo-hazards in the deferred time. InSAR-based techniques were mainly applied, thanks to the availability of huge historical SAR image archives [8], to measure and monitor ground deformation phenomena that had already occurred. Geoscientists have widely exploited SAR-based information to resolve the spatial distribution and temporal evolution of displacements in areas affected by slow or very slow moving landslides (e.g., [9][10][11][12][13]) or by land subsidence (e.g., [14][15][16][17]).…”

Section: Discussionmentioning

confidence: 99%

The COSMO-SkyMed Constellation Monitors the Costa Concordia Wreck

et al. 2014

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On 13 January 2012, the Italian vessel, Costa Concordia, wrecked offshore Giglio Island, along the coast of Tuscany (Italy). The ship partially sunk, lying on the starboard side on a 22° steep rocky seabed, making the stability conditions of the ship critically in danger of sliding, shifting and settling. The tilted position of the ship created also pernicious conditions for the divers involved in the search and rescue operations. It became immediately clear that a continuous monitoring of the position and movements of the ship was of paramount importance to guarantee the security of the people working around and within the wreck. Starting from January 19, the Italian constellation of synthetic aperture radar (SAR) satellites, COSMO-SkyMed (CSK), was tasked to acquire high resolution images of the wreck. Thanks to CSK's short response and revisiting time and its capability to acquire high resolution images in Spotlight mode, satellite data were integrated within the real time, ground-based monitoring system implemented to provide the civil protection authorities with a regular update on the ship stability. Exploitation of both the phase (satellite radar interferometry, InSAR) and amplitude (speckle tracking) information from CSK images, taken along the acquisition orbit, Enhanced Spotlight (ES)-29, revealed a general movement of the translation of the vessel, consistent with OPEN ACCESS Remote Sens. 2014, 6 3989 sliding toward the east of the hull on the seabed. A total displacement, with respect to the coastline, of 1666 mm and 345 mm of the bow and stern, respectively, was recorded, over the time period of

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“…The Permanent Scatterers (PS) originate from objects on the surface, whose actual or apparent displacements may arise from a variety of causes (e.g. slope movements, fill settlement, subsurface civil engineering, mining and fluid extraction, differential movements between cut and fill parts of a building site, structure deterioration, expansion/ shrinkage of soils (Colesanti et al 2003;Bovenga et al 2006;Culshaw 2009, Graniczny 2009Hay-Man et al 2009;Tomas et al 2014;Del Ventisette et al 2013)). …”

Section: Methodsmentioning

confidence: 99%

Vertical ground movements in the Polish and Lithuanian Baltic coastal area as measured by satellite interferometry

Graniczny¹,

Cyziene²,

Leijen³

et al. 2015

Baltica

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The article contains results obtained from realization of the Polish and Lithuanian Baltic case study within the EU -FP 7 SubCoast project, which one of the primary aims was analysis of vertical ground movements, potentially causing geohazards in the coastal areas. To reach this goal Interferometric Synthetic Aperture Radar (InSAR) data were obtained. For the Polish and Lithuanian Baltic coast ERS archive radar data were processed in order to provide Permanent Scatterer (PSInSAR, PSI) results that were then used to create the new innovative productDynamic DEM (DDEM). The deformation model defined by the SubCoast project normally needs to be created by merging InSAR, satellite navigation (GNSS), optical leveling and/or gravimetry measurements. Elaboration of DDEM enables more effective comparison between PS and tectonic features. Comparison of PS time series with groundwater changes shows a direct correlation, confirming impact of groundwater on subsidence or uplift of the ground surface. The results of the geological interpretation demonstrated that the examples of movements detected by PSI include subsidence linked to deformation of engineering constructions, compaction of organic or weak soils, and eolian accumulation or deflation processes of the sand dunes. For the Polish and Lithuanian coasts most of the area proved to be stable, nevertheless some local deviations up to -15 mm per year of movement were found.

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Exploitation of Large Archives of ERS and ENVISAT C-Band SAR Data to Characterize Ground Deformations

Cited by 52 publications

References 42 publications

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

Evaluation of the SBAS InSAR Service of the European Space Agency’s Geohazard Exploitation Platform (GEP)

The COSMO-SkyMed Constellation Monitors the Costa Concordia Wreck

Vertical ground movements in the Polish and Lithuanian Baltic coastal area as measured by satellite interferometry

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