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 ...

Hydrogeophysical methods are presented that support the siting and monitoring of aquifer storage and recovery (ASR) systems. These methods are presented as numerical simulations in the context of a proposed ASR experiment in Kuwait, although the techniques are applicable to numerous ASR projects. Bulk geophysical properties are calculated directly from ASR flow and solute transport simulations ...

During the last decade, several spectral estimation techniques have been proposed for application to SAR/ISAR imaging. The present study attempts to shed light to a number of parametric spectral estimation methods, employed for ISAR imaging of aircraft targets. We focus on performance comparison with respect to 1-D and 2-D image resolution. Auto-regressive methods and MUSIC algorithm are examin...

The scientific aims that motivate our work on this project are: (1) to understand quantitatively the multiple-scattering physics underlying spaceborne hyperspectral and lidar observations of atmospheric aerosols and surface reflectivity; (2) to develop rigorous, stable (i.e., genuinely useful) inverse methods to interpret such observations in terms of geophysical quantities, based on the mathem...

Geophysical survey methods bring information on the rock environment in real time, i.e. already during the geophysical survey. A geologist or a geotechnician provides such obtained information to a designer for the purpose of designing and implementation work at construction sites. Also, information on the effect of the rock environment or its properties (changing with time) on stabilization wo...

Different methods of lithology predictions from geophysical data have been developed in the last 15 years. The geophysical logs used for predicting lithology are the conventional logs: sonic, neutron-neutron, gamma (total natural-gamma) and density (backscattered gamma-gamma). The prompt gamma neutron activation analysis (PGNAA) is another established geophysical logging technique for in situ e...

In knowledge discovery from collected databases, one of the firstly arising questions is ”what should be discovered”. Two lines of work can be followed. In the first line, unsupervised learning is performed, usually clustering data, followed by a characterization of the discovered knowledge. In the second line, classifiers are constructed for each highly important feature registered in the data...

Recent developments in geophysical data analysis suggest that in addition to a multi-method approach, “data fusion” techniques can offer meaningful insights into archaeological features, as well as allow for researchers to establish patterns between multivariate data sets that might otherwise go unnoticed. Extensive and intensive geophysical prospection has been employed at the site of Portus i...