Other
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000georl..27.3981f&link_type=abstract
Geophysical Research Letters, Volume 27, Issue 24, p. 3981-3984
Other
11
Geodesy And Gravity: Space Geodetic Surveys, Radio Science: Interferometry, Radio Science: Remote Sensing
Scientific paper
This paper presents a new method for the isolation of displacement from atmospheric fringes. This novel approach is based on complex correlation of interferograms. Compared to other methods, this method has the advantage of requiring only a few interferograms (two at least). Its main limitation is the hypothesis of temporally varying atmospheric conditions between acquisitions (not the same heterogeneities on different interferograms). In the city of Paris, this method reveals 2 subsiding zones. Both have the same location as an important underground working site, which took place from 1995 to 1997. The existence of subsidence in the area was known previously from ground truth data. Their spatial extent can now be mapped by interferometry, and the temporal evolution of the subsidence is also examined here.
Fruneau Bénédicte
Sarti Francesco
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