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| Titel |
Spatio-temporal monitoring of water infiltration in weathered clay-shale slopes with electrical resistivity tomography |
| VerfasserIn |
J. Travelletti, P. Sailhac, G. Grandjean, J.-P. Malet, J. Ponton, S. Garambois |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250024257
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| Zusammenfassung |
| Time-laps Electrical Resistivity Tomography (ERT) surveys have been used for monitoring
hydrological processes linked to time-varying resistivity changes in the topsoil. The ERT
monitoring has been performed at high spatial (electrode spacing of 0.5m to 1.0m) and
temporal (3h) resolution during controlled rainfall experiments on some landslides
developed in black marls. Several representative plots of a few meters square with
different initial hydrological conditions (unsaturated, nearly saturated) and soil surface
characteristics (slope gradient, fissure density, grain size of the matrix) have been
investigated with a ~15 mm.h-1 rainfall during several days. After filtering the electrical
tension values lower than the resistivimeter device sensibility ( |
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