Multi-temporal image cross-correlation is a method for tracking moving features and can there-fore be used for quantitative assessments of surface displacements. Accuracies of up to 1/8th of the original image geometric resolution can be achieved. We present the results of an analysis car- ried out on Corvara landslide located in the Italian Dolomites. Image offset-tracking was applied to CosmoSky-Med amplitude images acquired between October 2013 and August 2015. The presence of a validation dataset consisting of periodical GPS surveys carried out on 16 benchmarks represents an ideal opportunity to test the applicability of SAR-based image cross-correlation for landslide moni- toring. Despite the relative low accuracy of the results amplitude-based offset-tracking proved to be beneficial due to the ability of this method to capture large displacements. In particular the results evidence its complementarity with respect to multi-temporal interferometry that is confined to slow displacements along E-W directions.

Quantitative monitoring of surface movements on active landslides by multi-temporal, high-resolution X-Band SAR amplitude information: Preliminary results / Mulas, Marco; Corsini, Alessandro; Cuozzo, G; Callegari, Mattia; Thiebes, Benjamin; Mair, V.. - STAMPA. - 2:(2016), pp. 1511-1516. (Intervento presentato al convegno 12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016) tenutosi a Naples nel 12-19 June 2016) [10.1201/b21520-186].

Quantitative monitoring of surface movements on active landslides by multi-temporal, high-resolution X-Band SAR amplitude information: Preliminary results

MULAS, MARCO;CORSINI, Alessandro;
2016

Abstract

Multi-temporal image cross-correlation is a method for tracking moving features and can there-fore be used for quantitative assessments of surface displacements. Accuracies of up to 1/8th of the original image geometric resolution can be achieved. We present the results of an analysis car- ried out on Corvara landslide located in the Italian Dolomites. Image offset-tracking was applied to CosmoSky-Med amplitude images acquired between October 2013 and August 2015. The presence of a validation dataset consisting of periodical GPS surveys carried out on 16 benchmarks represents an ideal opportunity to test the applicability of SAR-based image cross-correlation for landslide moni- toring. Despite the relative low accuracy of the results amplitude-based offset-tracking proved to be beneficial due to the ability of this method to capture large displacements. In particular the results evidence its complementarity with respect to multi-temporal interferometry that is confined to slow displacements along E-W directions.
2016
12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016)
Naples
12-19 June 2016
2
1511
1516
Mulas, Marco; Corsini, Alessandro; Cuozzo, G; Callegari, Mattia; Thiebes, Benjamin; Mair, V.
Quantitative monitoring of surface movements on active landslides by multi-temporal, high-resolution X-Band SAR amplitude information: Preliminary results / Mulas, Marco; Corsini, Alessandro; Cuozzo, G; Callegari, Mattia; Thiebes, Benjamin; Mair, V.. - STAMPA. - 2:(2016), pp. 1511-1516. (Intervento presentato al convegno 12th International Symposium on Landslides (Napoli, Italy, 12-19 June 2016) tenutosi a Naples nel 12-19 June 2016) [10.1201/b21520-186].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/1104755
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