Use of corner reflectors with Sentinel-1 SAR images for glacier and moraine monitoring

Conference: EUSAR 2018 - 12th European Conference on Synthetic Aperture Radar
06/04/2018 - 06/07/2018 at Aachen, Germany

Proceedings: EUSAR 2018

Pages: 6Language: englishTyp: PDF

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Jauvin, Matthias; Yan, Yajing; Trouve, Emmanuel (LISTIC, Université Savoie Mont Blanc, Annecy, France)
Fruneau, Benedicte (Université Paris-Est, LaSTIG, IGN-UPEM, Marne-la-Vallée, France)
Gay, Michel (Grenoble INP, GIPSA-Lab, CNRS, Grenoble, France)
Girard, Blaise (SYMME, Université Savoie Mont Blanc, Annecy, France)

In this study, 10 Corner Reflectors (CR) are exploited with a Sentinel-1 SAR image time series for glacier and moraine displacement measurement in the Chamonix-Mont-Blanc valley. The Radar-Cross Sections of 3 different CRs are measured in an anechoic chamber. The visibility in SAR images of 8 CRs installed over the Argentière glacier and the surrounding moraine are investigated. The amplitude stability and the phase error of each CR are also estimated. A precise tracking of one CR has allowed to measure the displacement of the Argentière glacier. Furthermore, a Persistent Scatter Interferometry study has been initiated to estimate the moraine instability.