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On the effectiveness of 2D electrical inversion results: an agricultural case study
Author(s) -
Panissod C.,
Michot D.,
Benderitter Y.,
Tabbagh A.
Publication year - 2001
Publication title -
geophysical prospecting
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.735
H-Index - 79
eISSN - 1365-2478
pISSN - 0016-8025
DOI - 10.1046/j.1365-2478.2001.00277.x
Subject(s) - electrical resistivity and conductivity , resistive touchscreen , inversion (geology) , electrical resistivity tomography , geology , electrical conductor , tomography , economic geology , evapotranspiration , environmental geology , hydrogeology , soil science , telmatology , materials science , geotechnical engineering , seismology , optics , physics , engineering , electrical engineering , composite material , ecology , biology , tectonics
Electrical resistivity tomography was used in Beauce (France) to assess the water extraction by corn plants (evapotranspiration). The acquired pseudosections show conductive anomalies under the plants. A 2D inversion of measurements led us to identify clear resistive features associated with the water losses under the corn‐plant rows. New models have been calculated with two different 3D algorithms (finite‐difference and moment‐method) to take into account 3D structure of the ground and to confirm that periodic resistive features may generate shifted apparent‐resistivity anomalies.