- document
-
Soni, A.K. (author), Verschuur, D.J. (author)For vertical-seismic-profiling (VSP) measurements, the use of blended acquisition, with time-overlapping shot records, can greatly reduce the downtime and, thereby, provide large cost savings. For directly imaging blended VSP measurements, we have used full-wavefield migration (FWM). FWM is an inversion-based imaging scheme that enables us to...journal article 2015
- document
-
Moghaddam, P.P. (author), Keers, H. (author), Herrmann, F.J. (author), Mulder, W.A. (author)Waveform inversion is the method of choice for determining a highly heterogeneous subsurface structure. However, conventional waveform inversion requires that the wavefield for each source is computed separately. This makes it very expensive for realistic 3D seismic surveys. Source-encoding waveform inversion, in which the sources are modeled...journal article 2013
- document
-
Diaferia, G. (author)On land, surface waves are extensively and successfully used for the determination of Shear velocity profile (MASW). From those, the stiffness of the subsurface within 20-30 m can be derived, useful especially for engineering purposes. This technique can be effectively applied also to shallow marine environments: surface waves ex- cited by air...master thesis 2012