We present a study of the seasonal behaviour of soil moisture in an old embankment levee by means of 2D DCelectrical
resistivity tomography monitoring based on an embedded electrode installation.
Wewere able to produce seasonal resistivity changemodels that are compensated for temperature effects using a
seasonal temperature profile model. Time-lapse sections of percentage resistivity changes showspatial and temporal
overall consistency with seasonal variations of soil temperature. Discrepancies are likely due to the pavement
layer that is not well considered in the inversion process as well as to time-lapse inversion pitfalls.
Furthermore, a detailed estimation of seasonal moisture content variations could not be given as an accurate calibration
of the employed suction probes was not achievable.
Nevertheless, the levee appears to have spatially consistent time variations in soil moisture, clearly influenced by
both rainfall and water table and river levels. Future work on developing 3D acquisitions and adding embedded
moisture content probes should prove effective to our monitoring design and give a more detailed understanding
of the soil moisture seasonal behaviour in the studied stretch of levee