Physics – Geophysics
Scientific paper
Nov 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3321405l&link_type=abstract
Geophysical Research Letters, Volume 33, Issue 21, CiteID L21405
Physics
Geophysics
12
Electromagnetics: Inverse Scattering, Hydrology: Hydrogeophysics, Hydrology: Soil Moisture, Hydrology: Instruments And Techniques: Modeling, Mathematical Geophysics: Wave Propagation (0689, 2487, 4275, 4455, 6934)
Scientific paper
We propose an integrated electromagnetic-hydrodynamic inverse modeling approach for identifying field-scale unsaturated soil hydraulic properties and electric profiles from off-ground time-lapse ground-penetrating radar data. Hydrodynamic modeling based on the one-dimensional Richards' equation with homogeneous soil hydraulic parameters is used to physically constrain the full-wave radar electromagnetic inverse problem in a closed loop. Significant effects can be observed of water dynamics on the time-lapse radar data and numerical studies demonstrate the uniqueness of the inverse solution. The results suggest that the method is promising for non-invasive characterization of the shallow subsurface and monitoring of its dynamics.
Lambot Sébastien
Slob E. C.
Vanclooster M.
Vereecken Harry
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