HR: 0830h
AN: G31B-0719    [PDF]
TI: Remote Sensing of Strain Accumulation and Near Fault Coseismic Displacements
AU: * Michel, R
EM: remi.michel@cea.fr
AF: CEA, DASE-LDG-TSE, Bruyeres-leChatel, 91680 France
AU: Klinger, y
AF: IPGP, jussieu, PARIS, 75000 France
AU: Simonetto, E
AF: CEA, DASE-LDG-TSE, Bruyeres-leChatel, 91680 France
AB: 1) we analysed the ERS archive spanning a 10 years period over le libanese part of the levantine fault. 43 derived differential interferograms depend on troposhere, ionosphere, ground deformation and uncertainties on data(including errors on orbits). Static and dynamic tropospheric patterns where best estimated from standard atmosphere models and available meteorological data. troposphere correction from MERIS data are shown consistant with meteological data. TEC maps where derived from GPS measurements. Analysis of trade-off between the parameters yields estimate of the spatial frequency dependant limitation of ERS insar. Map showing a possible strain accumulation rate of few millimeters per year is presented. Results derived from the permanent scatters procedure are consistant with the interferograms. 2) close-up views of the fault displacements induced by the hector mine earthquake are measured from USGS airborne imagery and satellite optical imagery and the potential of those measurements is discussed.
DE: 1224 Photogrammetry
DE: 1242 Seismic deformations (7205)
DE: 7215 Earthquake parameters
SC: Geodesy [G]
MN: 2003 Fall Meeting