Tomostatics using deformable layer tomography

Pralica, Nebojsa; Zhou, Hua‐wei; Jin, Shengwen; Wang, Shongxue

doi:10.1190/1.2148258

Cited by 2 publications

(1 citation statement)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Another cause of the problems is the presence of low-velocity zone, particularly in desert or loess areas. The loose alluvium, for instance, may have a P-wave velocity value 0.225-0.4 km=s which is slower than the speed of sound (Pralica, 2005). To remove the effects of the near surface and improve the quality of seismic data, we may define a reference datum surface, to which the wavefields are transformed as if they were acquired at this datum.…”

Section: Introductionmentioning

confidence: 99%

Wave-equation global datuming based on the double square root operator

et al. 2011

View full text Add to dashboard Cite

Current schemes for removing near-surface effects in seismic data processing use either static corrections or wave-equation datuming (WED). In the presence of rough topography and strong lateral velocity variations in the near surface, the WED scheme is the only option available. However, the traditional procedure of WED downward continues the sources and receivers in different domains. A new wave-equation global-datuming method is based on the double-square-root operator, implementing the wavefield continuation in a single domain following the survey sinking concept. This method has fewer approximations and therefore is more robust and convenient than the traditional WED methods. This method is compared with the traditional methods using a synthetic data example.

show abstract

Section: Introductionmentioning

confidence: 99%