Pipitone, C;
Maltese, A;
Dardanelli, G;
Capodici, F;
Muller, JP;
La Loggia, G;
(2018)
Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy.
In: Neale, CMU and Maltese, A, (eds.)
Remote Sensing for Agriculture, Ecosystems, and Hydrology XX.
SPIE: Berlin, Germany.
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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.
| Type: | Proceedings paper |
|---|---|
| Title: | Evaluation of different InSAR multi-baseline construction methods over a dam in southern Italy |
| Event: | SPIE Remote Sensing |
| ISBN-13: | 9781510621497 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.2326909 |
| Publisher version: | https://doi.org/10.1117/12.2326909 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10062096 |
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