Postseismic Deformation Monitoring With the COSMO/SKYMED Constellation

Reale, Diego; Nitti, Davide Oscar; Peduto, Dario; Nutricato, R.; Bovenga, F.; Fornaro, G.

doi:10.1109/lgrs.2010.2100364

Cited by 43 publications

(18 citation statements)

References 14 publications

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“…The enhanced temporal repetitiveness of the CSK constellation, the unprecedented timeliness in terms of response time (quasi-real-time delivery of data within a few hours of acquisition) and the flexibility of mission configuration, now offer the opportunity to effectively employ radar imagery as a quasi-real-time monitoring tool in the emergency and post-emergency phases associated with natural phenomena (e.g. [18][19][20]). …”

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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Section: Discussionmentioning

confidence: 99%

The COSMO-SkyMed Constellation Monitors the Costa Concordia Wreck

et al. 2014

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“…In case of large areas, atmospheric phase residuals are interpolated through a kriging procedure, and an ad hoc integration scheme is used to stitch the displacement maps retrieved on the single patches. SPINUA has been applied to investigate different studies including landslides, subsidence processes and post-seismic deformations (Bovenga et al, 2006;Nitti et al, 2009;Reale et al, 2011).…”

Section: Mti Processingmentioning

confidence: 99%

Applications of Medium C-Band and High Resolution X-Band Multitemporal Interferometry in Landslide Investigations

Wąsowski

Bovenga

Nutricato

et al. 2015

Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci.

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ABSTRACT:With the increasing quantity and quality of the imagery available from a growing number of SAR satellites and the improved processing algorithms, multi-temporal interferometry (MTI) is expected to be commonly applied in landslide studies. MTI can now provide long-term (years), regular (weekly-monthly), precise (mm) measurements of ground displacements over large areas (thousands of km 2 ), at medium (~20 m) to high (up to 1-3 m) spatial resolutions, combined with the possibility of multi-scale (regional to local) investigations, using the same series of radar images. We focus on the benefits as well as challenges of multisensor and multi-scale investigations by discussing MTI results regarding two landslide prone regions with distinctly different topographic, climatic and vegetation conditions (mountains in Central Albania and Southern Gansu, China), for which C-band (ERS or ENVISAT) and X-band COSMO-SkyMed (CSK) imagery was available (all in Stripmap descending mode). In both cases X-band MTI outperformed C-band MTI by providing more valuable information for the regional to local scale detection of slope deformations and landslide hazard assessment. This is related to the better spatial-temporal resolutions and more suitable incidence angles (40°-30° versus 23°) of CSK data While the use of medium resolution imagery may be appropriate and more cost-effective in reconnaissance or regional scale investigations, high resolution data could be preferentially exploited when focusing on urbanized landslides or potentially unstable slopes in urban/peri-urban areas, and slopes traversed by lifelines and other engineering structures.

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“…CSK mission is instead a constellation of four satellite SAR sensors, designed for ensuring Earth monitoring with a short revisit time (up to 12 hours for the full CSK constellation) [Battazza et al, 2009;Covello et al, 2010]. Recent scientific works Reale et al, 2011] have shown the advantages of using CSK in the monitoring through SAR interferometry (InSAR) terrain deformations caused for instance by landslides and earthquakes. Moreover, this mission, as the TSX and the Radarsat-2 missions, provides spatial resolutions from 1 m to 3 m (for Spotlight and Stripmap modes respectively), i.e.…”

Section: Introductionmentioning

confidence: 99%

On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation

Nitti

Bovenga

Nutricato

et al. 2013

European Journal of Remote Sensing

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This work experiments the potentialities of COSMO/SkyMed (CSK) data in providing interferometric Digital Elevation Model (DEM). We processed a stack of CSK data for measuring with meter accuracy the ground elevation on the available coherent targets, and used these values to check the accuracy of DEMs derived from 5 tandem-like CSK pairs. In order to suppress the atmospheric signal we experimented a classical spatial filtering of the differential phase as well as the use of numerical weather prediction (NWP) model RAMS. Tandem-like pairs with normal baselines higher than 300 m allows to derive DEMs fulfilling the HRTI Level 3 specifications on the relative vertical accuracy, while the use of NWP models still seems unfeasible especially for X-band.

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Postseismic Deformation Monitoring With the COSMO/SKYMED Constellation

Cited by 43 publications

References 14 publications

The COSMO-SkyMed Constellation Monitors the Costa Concordia Wreck

The COSMO-SkyMed Constellation Monitors the Costa Concordia Wreck

Applications of Medium C-Band and High Resolution X-Band Multitemporal Interferometry in Landslide Investigations

On the use of COSMO/SkyMed data and Weather Models for interferometric DEM generation

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