American Geophysical Union Become an AGU Member
Subscribe to AGU Journals		 AGU Home AGU Publications

Read Full Article (file size: 280764 bytes)    Cited by

GEOPHYSICAL RESEARCH LETTERS, VOL. 34, L19301, doi:10.1029/2007GL030409, 2007

Multiple cross-gradient joint inversion for geospectral imaging

Luis A. Gallardo

Earth Science Division, Centro de Investigación Científica y Educación Superior de Ensanada, Ensenada, Mexico


Abstract

Accurate characterization and monitoring of complex subsurface environments require the integration of all the available geophysical, geochemical and geological information. I developed a generalized cross-gradient procedure that seeks multiple geometrically similar images that simplify the integration of cross-property subsurface information. I jointly invert near-surface P-wave, S-wave, DC resistivity and magnetic data sets recorded at a field site and compound an integrated subsurface (geospectral) image based on the multiple property images found. It is shown that, by analogy to applications in satellite imagery, the geospectral image assembles the multiple subsurface parameter values under a common structural framework that facilitates their visualization and analysis.

Received 3 May 2007; accepted 26 July 2007; published 2 October 2007.

Keywords: joint inversion; data integration; geophysical imaging.

Index Terms: 0902 Exploration Geophysics: Computational methods: seismic; 0903 Exploration Geophysics: Computational methods: potential fields (1214); 0925 Exploration Geophysics: Magnetic and electrical methods (5109); 3260 Mathematical Geophysics: Inverse theory.

Read Full Article (file size: 280764 bytes)    Cited by

Citation: Gallardo, L. A. (2007), Multiple cross-gradient joint inversion for geospectral imaging, Geophys. Res. Lett., 34, L19301, doi:10.1029/2007GL030409.