Quantitative integration of seismic and GPR reflections to derive unique estimates for water saturation and porosity in subsoil

Quantitative integration of seismic and GPR reflections to derive unique estimates for water saturation and porosity in subsoil

Ghose, R.
Slob, E.C.

Civil Engineering and Geosciences

Geotechnology

2006-03-15

For shallow subsoil, the estimates of in-situ porosity and water saturation are important, but until now it has been difficult to estimate them reliably. We relate seismic and GPR reflection coefficients to porosity and water saturation using a shared earth model. Using this model, we propose a method to integrate quantitatively seismic and GPR angle-dependent reflection coefficients. The new approach has been tested through numerical simulations. The results clearly show that from either seismic or GPR data alone it is impossible to obtain unique estimates for porosity and water saturation; however, a correct integration of those two data types leads to unique and stable estimates at a subsoil layer boundary. Potential applications of this approach exist in hydrogeology and environmental, agricultural and geotechnical engineering.

http://resolver.tudelft.nl/uuid:1d3feadf-4d15-4748-8b6f-13753954b863

https://doi.org/10.1029/2005GL025376

American Geophysical Union

0094-8276

http://europa.agu.org/?view=article&uri=/journals/gl/gl0605/2005GL025376/2005GL025376.xml

Geophysical Research Letters, 33, 2006

Institutional Repository

journal article

(c) 2006 Ghose, R.; Slob, E.C.; American Geophysical Union