Pierre Briole

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Tropospheric inhomogeneities can form a major error source in differential synthetic aperture radar interferometry measurements, which are used in slow-deformation monitoring. Indeed, variations of atmospheric conditions between two radar acquisitions produce variations in the signal path of two images and, thus, additional fringes on differential(More)
A precise knowledge of the Earth form and its dynamic deformations is fundamental for a great number of scientific problems. SAR and differential SAR interferometry are operational tools for topographic profile reconstruction [1] [2] and ground surface deformation monitoring [3] [4]. Since 1992, differential interferometry has improved considerably ground(More)
Using combinations of adequately selected ERS-2 SAR images, the co-seismic deformation field associated with the Athens earthquake was analyzed. The observed fringes indicate a minimum of 56mm change in slant range direction. To assess the location and geometry of the seismic fault and the amplitude of the slip, a simple dislocation model in elastic(More)
The 2015/11/17 Lefkada (Greece) earthquake ruptured a segment of the Cephalonia Transform Fault (CTF) where probably the penultimate major event was in 1948. Using near-source strong motion and high sampling rate GPS data and Sentinel-1A SAR images on two tracks, we performed the inversion for the geometry, slip distribution and rupture history of the(More)
The Western Alps are among the best studied collisional belts with both detailed structural mapping and also crustal geophysical investigations such as the ECORS and EGT seismic pro®le. By contrast, the present-day kinematics of the belt is still largely unknown due to small relative motions and the insucient accuracy of the triangulation data. As a(More)
Nine ERS-1 and ERS-2 descending orbit data acquired over Aira Caldera between June 1995 and November 1998 were used to create 36 differential interferograms. Although the interferograms exhibit a relatively low level of coherence, even for couples sampling short time intervals (6 months), Synthetique Aperture Radar (SAR) observations reveal a distinct range(More)