Inflation rate of the Colli Albani volcanic complex retrieved by the permanent scatterers SAR interferometry technique

Details Inflation rate of the Colli Albani volcanic complex retrieved by the permanent scatterers SAR interferometry technique Inflation rate of the Colli Albani volcanic complex retrieved by the permanent scatterers SAR interferometry technique

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004georl..3112606s&link_type=abstract

Geophysical Research Letters, Volume 31, Issue 12, CiteID L12606

Physics

6

Geodesy And Gravity: Space Geodetic Surveys, Tectonophysics: Physics Of Magma And Magma Bodies, Volcanology: Instruments And Techniques

Scientific paper

We analyzed 99 ERS SAR images of the Colli Albani volcano using the Permanent Scatterers technique. We retrieved the average surface displacement velocities for over 100,000 scatterers for the period 1993-2000, showing that present deformation is concentrated in the area of most recent volcanic activity, with rates up to 2.6 mm/yr in the satellite line of sight. We inverted the observed deformation using several analytical solutions for volcanic sources in an elastic half space. The best fit is obtained with two Mogi sources aligned in a N-S direction at 5 and 7 km depth beneath the western flank of the volcano.

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