Statistics – Computation
Scientific paper
Dec 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007georl..3424403j&link_type=abstract
Geophysical Research Letters, Volume 34, Issue 24, CiteID L24403
Statistics
Computation
15
Physical Properties Of Rocks: Magnetic And Electrical Properties (0925), Physical Properties Of Rocks: Fracture And Flow, Physical Properties Of Rocks: Transport Properties, Computational Geophysics: Numerical Solutions (4255), Computational Geophysics: Modeling (4255)
Scientific paper
An algorithm is developed to interpret self-potential (SP) data in terms of distribution of Darcy velocity of the ground water. The model is based on the proportionality existing between the streaming current density and the Darcy velocity. Because the inverse problem of current density determination from SP data is underdetermined, we use Tikhonov regularization with a smoothness constraint based on the differential Laplacian operator and a prior model. The regularization parameter is determined by the L-shape method. The distribution of the Darcy velocity depends on the localization and number of non-polarizing electrodes and information relative to the distribution of the electrical resistivity of the ground. A priori hydraulic information can be introduced in the inverse problem. This approach is tested on two synthetic cases and on real SP data resulting from infiltration of water from a ditch.
Barrash W.
Bolève A.
Crespy A.
Dupont J. P.
Jardani A.
No associations
LandOfFree
Tomography of the Darcy velocity from self-potential measurements does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Tomography of the Darcy velocity from self-potential measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tomography of the Darcy velocity from self-potential measurements will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1759670