this paper describes an efficient edge-preserved regularization algorithm for downward continuation of magnetic data in detection of unexploded ordnance (uxo). the magnetic anomalies arising from multi-source uxo can overlap at a height over the ground surface, while causative sources may not be readily separated due to low level of signal-to-noise ratio of the observed data. to effectively the...

The millions of pieces of unexploded ordnance (UXO) littering former battlefields are a lingering legacy of World War I. In the Verdun, French démineurs dispose of about 30 tons of chemical ordnance each year; they have been doing so since 1945. China, too, has a chemical battlefield legacy, with more than 120 tons of abandoned Japanese chemical weapons from World War II. The removal of these w...

Using Uncrewed Aerial vehicles (UAVs) to rapidly scan areas for potential unexploded ordnance (UXO) can provide an efficiency increase while minimizing detonation risks. We present a complete overview of how such mappings be performed using scalar magnetometers, including initial sensor testing, time stamping validation, data positioning, noise removal, and source model inversion. A test survey...

The detection of old submerged ammunition that is located on or below the seabed important preparatory work for offshore projects. Multibeam echosounder, side scan sonar, subbottom profiler and magnetometers are sensor types most commonly used task. Survey design decisions center around both campaign efficiency sufficient data quality to find specific reference objects. paper presents a compreh...

We will report on first tests of a commercial “imaging metal detector” aimed at trying to assess its potentialities and understand in a broader sense if such systems, possibly in a modified form, could be useful to tackle some aspects of the UXO/mine detection problem. The latter include the detection of shallowly buried Unexploded Ordnance (UXO) (e.g. in Laos) or non minimum-metal mines such a...

As earth scientists seek to address today’s demands to detect, characterize and discriminate buried Unexploded Ordnance (UXO) for remediation and safe disposal, they are increasingly relying on high resolution geophysical methods to provide accurate and efficient detection of land-based and offshore targets. In comparison with traditional sampling procedures, geophysical methods are especially ...