Ultrasonic seismic imaging of lava samples by viscoacoustic asymptotic waveform inversion: calibration and developments
Résumé
The object of this study is to estimate the viscoelastic parameters (compressionnal velocity and the intrinsic attenuation factor Q) of lava samples in acoustic tomography experiments by the use of an asymptotic viscoacoustic diffraction tomography method developped by Ribidetti et al 2000. 2.5 D common offset ultrasonic experiments are performed in a water tank laboratory.
Mots clés
- asymptotic and Born approximation
- Born approximation
- water tank laboratory
- 2.5-D common-offset ultrasonic experiments
- asymptotic viscoacoustic diffraction tomography
- acoustic tomography
- intrinsic attenuation factor
- viscoacoustic medium
- diffraction tomography method
- intrinsic attenuation
- lava samples
- viscoacoustic asymptotic waveform inversion
- ultrasonic seismic imaging
- calibration
- compressional velocity
| Origine | Fichiers éditeurs autorisés sur une archive ouverte |
|---|---|
| Licence |