In this work we adopted an array optimization scheme for a special geoelectrical monitoring instrument for which no standard geoelectrical arrays exists. Optimized measurements are selected on the basis of their Jacobian matrix values. Application is demonstrated though model and real examples from a landslide site in Austria. Synthetic and real tests demonstrated that though measurement optimization it is possible to reduce the number of collected data without reducing the overall geoelectrical imaging quality. This is a very important for reducing both the power consumption as well the time-lapse data processing time.


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