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In order to evaluate the UXO contamination of an abandoned military site, many small areas were magnetically surveyed.

After geodetic surveying of the fields with DGPS and tachymeter at each square a magnetic survey was paced in lines using a 4-sensors-gradiometer-array. Hence measuring points had been recorded every 0.25 m. The attained magnetic data were saved digitally and instantly put for a first quality check in field. Further calculation and modelling took place afterwards in office. The adjacent image shows results of one test field, with indicated suspicious UXO anomalies.