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Hydrodynamic Parameters of a Sandy Soil Determined by Ground-Penetrating Radar Monitoring of Porchet Infiltrations

Emmanuel Leger 1 Albane Saintenoy 1, 2 Piotr Tucholka 1, 2 Yves Coquet 3
1 GEOPS - Géosciences Paris Sud
2 IDES - Interactions et dynamique des environnements de surface
3 ISTO - Institut des Sciences de la Terre d'Orléans - UMR7327
Abstract : This study presents how Mualem-van Genuchten (M-vG) hydraulic parameters of a sandy soil can be obtained from ground-penetrating radar data acquired during water infiltration down a tube placed in a vertical hole. Water content profiles were simulated at various infiltration time steps using SWMS-2D based on initial values of the M-vG parameters and were converted to dielectric permittivity profiles using the Complex Refractive Index Model. The GprMax2D suite of programs was used to generate radargrams showing the electromagnetic reflections on the simulated wetting bulb. The shuffled complex evolution algorithm was used to estimate the M-vG parameters from GPR reflections measured during a constant head borehole infiltration. The method is presented on synthetic examples and on field experiments carried out in a sandy soil. The estimated parameters were compared with values obtained in laboratory on soil samples and with disk infiltrometer measurements.
Keywords : hydrogeophysics soil science Ground-penetrating radar
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Journal articles
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https://hal-insu.archives-ouvertes.fr/insu-01293454
Contributor : Nathalie Pothier <>
Submitted on : Thursday, March 24, 2016 - 5:03:20 PM
Last modification on : Wednesday, September 23, 2020 - 4:37:41 AM

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INSU | CNRS | UNIV-ORLEANS | ISTO | OSUC | BRGM | GEOPS | OBSPM | PSL

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Emmanuel Leger, Albane Saintenoy, Piotr Tucholka, Yves Coquet. Hydrodynamic Parameters of a Sandy Soil Determined by Ground-Penetrating Radar Monitoring of Porchet Infiltrations. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, IEEE, 2016, 9 (1), pp.188-200. ⟨10.1109/JSTARS.2015.2464231⟩. ⟨insu-01293454⟩

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