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| Titel |
Advanced interpretation of land subsidence by validating multi-interferometric SAR data: the case study of the Anthemountas basin (Northern Greece) |
| VerfasserIn |
F. Raspini, C. Loupasakis, D. Rozos, S. Moretti |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1561-8633
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| Digitales Dokument |
URL |
| Erschienen |
In: Natural Hazards and Earth System Science ; 13, no. 10 ; Nr. 13, no. 10 (2013-10-09), S.2425-2440 |
| Datensatznummer |
250085525
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| Publikation (Nr.) |
 copernicus.org/nhess-13-2425-2013.pdf |
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| Zusammenfassung |
The potential of repeat-pass space borne SAR (Synthetic Aperture Radar)
interferometry has been exploited to investigate spatial patterns of land
subsidence in the Anthemountas basin, in the northern part of Greece. The PSI
(Persistent Scatterer Interferometry) approach, based on the processing of
long series of SAR acquisitions, has been applied to forty-two images
acquired in 1995–2001 by ERS1/2 satellites. Interferometric results have
been analysed at a basin scale as support for land motion mapping and at
a local scale for the characterisation of ground motion events affecting the
village of Perea in the Thermaikos municipality and the "Macedonia"
international airport.
PSI results revealed a moderate subsidence phenomenon along the wider
coastal zone of Anthemountas basin corresponding to intense groundwater
extraction. Highest values, exceeding −20 mm yr−1, were measured in the
airport area where the thickest sequence of compressible Quaternary
sediments occurs. Intense subsidence has been detected also in the Perea
village (maximum deformation of −10 to −15 mm yr−1), where a series of
fractures, causing damages to both buildings and infrastructure, occurred in
2005–2006. |
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