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Inversion of synthetic travelime data generated for known models. Some of these tutorials come with ASCII formatted traveltime data, in the linked .zip archive. Objectively test accuracy of your own method with these data sets.


Multiscale tomography for SAGEEP11 blind fault model with version 3.34

Multiscale tomography for basement step model with version 3.34

Our SAGEEP 2014 expanded abstract now at library.seg.org

Blind Test of Methods for Obtaining 2-D Near-Surface Seismic Velocity Models from First-Arrival Traveltimes (Colin Zelt et al., JEEG Sep 2013)

Updated tutorial showing how to convert layer model .CSV to layered .GRD starting model (Fig. 17)

An Evaluation of Methods and Available Software for Seismic Refraction Tomography Analysis (Jacob R. Sheehan et al., JEEG March 2005. Compares Rayfract with GeoTomo LLC GeoCT-II and OYO SeisImager)

Blind Test of Methods for Obtaining 2-D Near-Surface Seismic Velocity Models from First-Arrival Traveltimes (Colin Zelt et al., JEEG Sep 2013)

Our expanded abstract presented at SAGEEP 2014, Boston, MA U.S.A.

Optimized interpretation of SAGEEP 2011 blind refraction data, with Smooth inversion and Plus-Minus method

Kotyrba and Schmidt show combination of seismic and resistivity tomography for the detection of abandoned mine workings

Our contribution to forum.detectation.com SRT modeling and interpretation, with 1.5D DeltatV and 2D WET inversion

1.5D DeltatV and 2D WET inversion, CMP Intercept-Time Refraction layered interpretation of synthetic traveltime data

Tutorial showing how to build a "basement step" model grid with Surfer, and how to generate and invert synthetic shots for this model

Updated PalmFig9 tutorial, now showing Smooth inversion and layer-based Wavefront refraction interpretation of synthetic shots for syncline model

Smooth inversion with free trial, of synthetic data for thrust fault model. Shows successful imaging of strong lateral velocity variation.

Smooth XTV inversion with free trial, of Jacques Jenny THEORIC2.ASC synthetic data for a layered model. Shows Surfer gridding artefacts.

Interpretation of synthetic and field data with surface wave analysis and Rayfract traveltime tomography, Boiero and Socco, EAGE Geophysical Prospecting Nov 2010.

Master Thesis Stefan Jansen, Niels Bohr Institute, University of Copenhagen 2010. Evaluates Rayfract with synthetic data.

Building syncline model and forward modeling data described by Derecke Palmer in EAGE Geophysical Prospecting March 2010

Improving interpretation of syncline model

Comparison of pseudo-2D Delta-t-V initial model with 1D-gradient initial model, for basement depression (syncline model) described by Derecke Palmer

Comparison of pseudo-2D Delta-t-V initial model with 1D-gradient initial model, for basement depression model as described by Jacob Sheehan

Application of Seismic Refraction Tomography to Karst Cavities (Jacob R. Sheehan et al. 2005, U.S. Geological Survey Scientific Investigations Report 2005-5160)

Interpretation of Jacob Sheehan's Epikarst model

Comparison of pseudo 2D Delta-t-V initial model with 1D gradient initial model

Thrust fault modeling and imaging with Surfer 8 and Rayfract 3.19

Improved interpretation of "Dipping" SEG 2003 Dallas model (Jacob Sheehan et al.), with Delta-t-V version 2.47

Evaluation of refraction tomography codes for near-surface applications (Jacob Sheehan et al., Oak Ridge National Laboratory Tennessee, SEG 2003 Dallas abstract)

Comparison of shallow refraction interpretation methods for regolith mapping (Robert J. Whiteley and Peter J. Eccleston, ASEG Exploration Geophysics Dec 2006 final draft)

Interpretation of First-Arrival Travel Times with Wavepath Eikonal Traveltime inversion and Wavefront refraction method (Rohdewald, SAGEEP 2011)

Tutorial how to build and use your own layer-based initial model

Wavepath eikonal traveltime inversion: Theory (Gerard T. Schuster 1993)

Seismic traveltime tomography using Fresnel volume approach (Toshiki Watanabe 1999)

Beyond ray tomography: Wavepaths and Fresnel volumes (Don W. Vasco et al. 1995)

The Fresnel volume and transmitted waves (Jesper Spetzler and Roel Snieder 2004)

Local earthquake tomography between rays and waves: fat ray tomography (S. Husen and E. Kissling ETH Zurich 2001)


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