Lapo Boschi

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  • Thorsten W Becker, Göran Ekström, Lapo Boschi, John H Woodhouse
  • 2007
We measure the degree of consistency between published models of azimuthal seismic anisotropy from surface waves, focusing on Rayleigh wave phase-velocity models. Some models agree up to wavelengths of ∼2000 km, albeit at small values of linear correlation coefficients. Others are, however, not well correlated at all, also with regard to isotropic(More)
  • Lapo Boschi, Thorsten W Becker, Gaia Soldati, Adam M Dziewonski
  • 2006
[1] Does the application of seismic Born theory, as opposed to simpler ray theory, lead to an improvement in tomographic images of the Earth? In recent publications, Montelli et al. (2004a, 2004b) and van der Hilst and de Hoop (2005) among others have expressed opposite opinions. We propose a quantitative approach to the comparison of tomographic images,(More)
Computational seismology is an area of wide sociological and economic impact, ranging from earthquake risk assessment to subsurface imaging and oil and gas exploration. At the core of these simulations is the modeling of wave propagation in a complex medium. Here we report on the extension of the high-order finite-element seismic wave simulation package(More)
  • Cornelis Weemstra, Lapo Boschi, Alexander Goertz, Brad Artman
  • 2013
We apply seismic interferometry to data from an OBS survey offshore Norway and show that ambient seismic noise can be used to constrain subsurface attenuation on a reservoir scale. By crosscorrelating only a few days of recordings by broad-band ocean bottom seismometers we are able to retrieve empirical Green's Functions (EGFs) associated with surface waves(More)
7 We apply two different algorithms to measure surface-wave phase velocity, as a function of 8 frequency, from seismic ambient noise recorded at pairs of stations from a large European 9 network. The two methods are based on consistent theoretical formulations, but differ in the 10 implementation: one method involves the time-domain cross-correlation of(More)
Recordings of the Earth's surface oscillation as a function of time (seismograms) can be sonified by compressing time so that most of the signal's frequency spectrum falls in the audible range. The pattern-recognition capabilities of the human auditory system can then be applied to the auditory analysis of seismic data. In this experiment, we sonify a set(More)
Defining the oceanic lithosphere as a thermal boundary layer allows to explain, to first order, age-dependent bathymetry and isotropic wave speeds. In contrast, SS precursors and receiver functions suggest a subhorizontal interface within this layer, on top of a radially anisotropic zone. Comparing a suite of geodynamic scenarios against surface wave(More)
  • Lapo Boschi, Arthur Paté, Ben Holtzman, Jean-Lo¨ıc Le Carrou
  • 2015
Recordings of the Earth's surface oscillation (seismograms) can be sonified such that most of the signal's frequency spectrum falls in the audible range. Then, the pattern-recognition capabilities of the human auditory system can be applied to auditory analysis of seismic data. We sonify seismograms associated with a magnitude 5.6 earthquake. A group of(More)