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Multiple cross‐gradient joint inversion for geospectral imaging
Author(s) -
Gallardo Luis A.
Publication year - 2007
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2007gl030409
Subject(s) - geology , inversion (geology) , visualization , remote sensing , joint (building) , geophysics , property (philosophy) , electrical resistivity tomography , computer science , electrical resistivity and conductivity , seismology , data mining , architectural engineering , philosophy , epistemology , electrical engineering , engineering , tectonics
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.