Monitoring dam displacements using different techniques allows an evaluation of their structural behaviour over time. In this study, dam displacements (for the Castello dam, Agrigento, Italy) have been investigated using different Interferometric Synthetic Aperture Radar (InSAR) techniques exploiting a freely available dataset from the EU Copernicus Sentinel-1 SAR built by the European Space Agency (ESA). The dataset includes Sentinel 1A (S1A) images acquired in dual-polarization and Interferometric Wide (IW) swath using the Terrain Observation with Progressive Scans SAR (TOPSAR) mode. Three main Multi-Baseline Construction methods based on the identification of Persistent Scatterers (PS) have been tested, within a scene including an extra-urban area surrounding the dam. The evaluation of the best strategy is carried out over few images (7) with a constant acquisition time-span of 12 days, except for the first image, acquired 24 days before the next one. Three different multi-baseline construction methods have been investigated in this preliminary research to test the capability of these InSAR techniques in finding a time series of displacements with high accuracy in extra-urban areas also. The star graph results in displacement appear to be more in agreement with GNSS measurements than other techniques.

Pipitone, C., Maltese, A., Dardanelli, G., Capodici, F., Muller, J., La Loggia, G. (2018). Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 00). SPIE [10.1117/12.2326909].

Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy

Pipitone, Claudia
;
Maltese, Antonino;Dardanelli, Gino;Capodici, Fulvio;La Loggia, Goffredo
2018-01-01

Abstract

Monitoring dam displacements using different techniques allows an evaluation of their structural behaviour over time. In this study, dam displacements (for the Castello dam, Agrigento, Italy) have been investigated using different Interferometric Synthetic Aperture Radar (InSAR) techniques exploiting a freely available dataset from the EU Copernicus Sentinel-1 SAR built by the European Space Agency (ESA). The dataset includes Sentinel 1A (S1A) images acquired in dual-polarization and Interferometric Wide (IW) swath using the Terrain Observation with Progressive Scans SAR (TOPSAR) mode. Three main Multi-Baseline Construction methods based on the identification of Persistent Scatterers (PS) have been tested, within a scene including an extra-urban area surrounding the dam. The evaluation of the best strategy is carried out over few images (7) with a constant acquisition time-span of 12 days, except for the first image, acquired 24 days before the next one. Three different multi-baseline construction methods have been investigated in this preliminary research to test the capability of these InSAR techniques in finding a time series of displacements with high accuracy in extra-urban areas also. The star graph results in displacement appear to be more in agreement with GNSS measurements than other techniques.
2018
Settore ICAR/02 - Costruzioni Idrauliche E Marittime E Idrologia
Settore ICAR/06 - Topografia E Cartografia
9781510621497
Pipitone, C., Maltese, A., Dardanelli, G., Capodici, F., Muller, J., La Loggia, G. (2018). Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 00). SPIE [10.1117/12.2326909].
File in questo prodotto:
File Dimensione Formato  
10783-46.pdf

Solo gestori archvio

Descrizione: articolo
Tipologia: Versione Editoriale
Dimensione 1.08 MB
Formato Adobe PDF
1.08 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/343023
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 0
  • ???jsp.display-item.citation.isi??? 0
social impact