This paper reports the results of tests where electrical impedance tomography (EIT) was evaluated as a tool for detecting and locating buried unexploded ordnance (UXO). The method relies on the electrolytic polarization induced at the boundary between soil and buried metal. This induced polarization (IP) produces a measurable phase delay between the electric current imposed on the subsurface an...

The integrated editor UXO is the result of ongoing research and development of the text-technology group at Bielefeld. Being a full featured XML-based editing system, it also allows to combine the structured annotated data with information imported from relational databases by integrating a JDBC interface. The mapping processes between different levels of annotation can be programmed either by ...

Category: Site Characterization Presented at: The UXO/Countermine Forum, September 3-6, 2002, Orlando, Florida ABSTRACT There are different sources of uncertainty attached to UXO site characterization. One of them is associated with prior information regarding locations of ordnance targets, which are used initially for designing sampling schemes. The accuracy of information is then defined by t...

We describe an automatic procedure for building risk maps of unexploded ordnances (UXO) based on historic air photographs. The system is based on a cost-sensitive version of AdaBoost regularized by hard point shaving techniques, and integrated by spatial smoothing. The result is a map of the spatial density of craters, an indicator of UXO risk.

After a brief introduction to Humanitarian Demining we will review the basic principles of the electromagnetic detection of metallic objects, especially induction devices (“metal detectors”), and see how they are applied in Humanitarian Demining and Civil Engineering, with emphasis on visualization techniques. We will then report on tests of a commercial “imaging metal detector” aimed at trying...

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 ...

BACKGROUND The purpose of this exploratory study is to pilot a biopsychosocial instrument called the Perceived Impact of Problem Profile (PIPP) on a cohort of landmine/Unexploded Ordnance (UXO) victims with lower limb disability versus a cohort of persons with similar disability due to other trauma or medical causes. The aim is to provide greater understanding of the psychosocial impact of land...

We have used ground-penetrating radar (GPR) to detect UXO and non-ordnance on the 40-acre site (lot 54) of Jefferson Proving Ground, Indiana. The UXO are buried within about 1 m deep in a clayey silt for which the soil water content ranged from moist near the surface to near saturation at about 1 m. We used a 16-bit radar to profile along previously established lines, and transects over artific...

Electromagnetic (EM) scattering from subsurface unexploded ordnance (UXO) is investigated both theoretically and experimentally. Three EM models are considered: the multilevel fast multipole algorithm (MLFMA), the method of moments (MoM), and physical optics (PO). The relative accuracy of these models is compared for several scattering scenarios. Moreover, the model results are compared to data...