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25 years of satellite InSAR monitoring of ground instability and coastal geohazards in the archaeological site of Capo Colonna, Italy

Cigna, Francesca and Confuorto, Pierluigi and Novellino, Alessandro and Tapete, Deodato and Di Martire, Diego and Ramondini, Massimo and Calcaterra, D. and Plank, Simon and Letto, Fabio and Brigante, Antonio and Sowter, Andrew (2016) 25 years of satellite InSAR monitoring of ground instability and coastal geohazards in the archaeological site of Capo Colonna, Italy. In: Proceedings of SPIE - The International Society for Optical Engineering, 10003 (100030), pp. 1-14. SPIE Remote Sensing 2016 in Edinburgh, 26.-29. Sep. 2016, Edinburgh, United Kingdom. ISBN 978-151060410-0 ISSN 0277786X

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Official URL: https://www.scopus.com/record/display.uri?eid=2-s2.0-85010878213&origin=resultslist&sort=plf-f&src=s&sid=878524BAE650CA0A65FB81111BA50517.wsnAw8kcdt7IPYLO0V48gA%3a140&sot=autdocs&sdt=autdocs&sl=18&s=AU-ID%2857188591323%29&relpos=4&citeCnt=0&searchTerm

Abstract

There is a copious literature investigating the natural and human-induced land subsidence along the eastern coast of Calabria region in Southern Italy, as well as its correlation with geological and tectonic setting, temporal evolution and impact on the landscape. Earliest evidence of ground instability and coastal subsidence were found in the archaeological records of the Ancient Greek sites distributed along the Ionian coast. Among these, Capo Colonna is of particular interest for its cultural value, as it was known for centuries for the glorious sanctuary of the Greek Goddess Hera Lacinia. Although only one monumental column is preserved, the site is nowadays the archaeological icon of the region and, for this reason, a focus for the heritage bodies responsible for its preservation. The site has been imaged by space-borne Synthetic Aperture Radar (SAR) sensors over the last 25 years, resulting in an unprecedented SAR time series, starting from ERS-1/2 (1992-2000), ENVISAT ASAR (2003-2010), TerraSAR-X StripMap (2008-2010), COSMO-SkyMed StripMap (2014-2015) and Sentinel-1A Interferometric Wide Swath (2014-2016) scenes. In this work, we analyse annual rates and temporal evolution of ground motion across the site, estimated through Interferometric SAR (InSAR) processing with Permanent Scatterer InSAR (PSInSAR), Coherent Pixel Technique (CPT), Persistent Scatterer Pairs Differential InSAR (PSP-DIFSAR), Small Baseline Subset (SBAS) and Intermittent SBAS (ISBAS). The goal of our multi-sensor, multi-temporal and multi-processing approach is to test different spatial resolutions, radar wavelengths and InSAR routines and provide an improved understanding of the performances of these data and methods over an archaeological area that is known to have been uninterruptedly exposed to land subsidence and coastal processes of instability, but challenging to monitor with InSAR methods due to its chiefly rural setting. We integrate InSAR ground motion information for natural reflectors present across the archaeological site with a recently installed network of artificial corner reflectors. This now enables the analysis of sectors where land cover constraints prevented a dense coverage of persistent scatterers and coherent targets to be obtained when processing historical ERS and ENVISAT data. The spatially extended coverage achieved by processing the Sentinel-1 data with the novel ISBAS method also allows us to further fill the knowledge gap and to retrieve information on land motion for 2014-2016 over the whole site, including rural and semi-vegetated areas.

Item URL in elib:https://elib.dlr.de/103736/
Document Type:Conference or Workshop Item (Poster)
Title:25 years of satellite InSAR monitoring of ground instability and coastal geohazards in the archaeological site of Capo Colonna, Italy
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Cigna, FrancescaBritish Geological Survey, United KingdomUNSPECIFIED
Confuorto, Pierluigipierluigi.confuorto (at) unina.itUNSPECIFIED
Novellino, AlessandroDepartment of Earth, Environment and Resources Sciences. Federico II University of Naples, ItalyUNSPECIFIED
Tapete, DeodatoBritish Geological Survey, United KingdomUNSPECIFIED
Di Martire, DiegoDepartment of Earth, Environment and Resources Sciences. Federico II University of Naples, ItalyUNSPECIFIED
Ramondini, MassimoDepartment of Civil, Architectural and Environmental Engineering, Federico II University of NapoliUNSPECIFIED
Calcaterra, D.Federico II University of Napoli (Italy)UNSPECIFIED
Plank, Simonsimon.plank (at) dlr.deUNSPECIFIED
Letto, FabioUniversita’della Calabria, Rende, ItalyUNSPECIFIED
Brigante, AntonioBrigante Engineering srl, ItalyUNSPECIFIED
Sowter, AndrewUniversity of Nottingham, UKUNSPECIFIED
Date:28 September 2016
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:10003
Page Range:pp. 1-14
Editors:
EditorsEmail
Paloscia, S.UNSPECIFIED
Pierdicca, N.UNSPECIFIED
Mitchard, E.UNSPECIFIED
Notarnicola, C.UNSPECIFIED
Series Name:Proceedings of SPIE - The International Society for Optical Engineering
ISSN:0277786X
ISBN:978-151060410-0
Status:Published
Keywords:InSAR; SAR interferometry; cultural heritage
Event Title:SPIE Remote Sensing 2016 in Edinburgh
Event Location:Edinburgh, United Kingdom
Event Type:international Conference
Event Dates:26.-29. Sep. 2016
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Zivile Kriseninformation und Georisiken (old)
Location: Oberpfaffenhofen
Institutes and Institutions:German Remote Sensing Data Center > Geo Risks and Civil Security
Deposited By: Plank, Simon Manuel
Deposited On:19 Apr 2016 08:05
Last Modified:16 Feb 2017 09:24

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