Geophysical Mapping: Problem Findings Displays the valid Assignments. To display specific method information, click on the method name.  Problemtype  Problem  Assigner  Method  Methodtype   Hazardous Waste   Monitoring   +   Frequency-domain electromagnetics - Profiling   Electromagnetic Methods       +   Frequency-domain electromagnetics - Sounding   Electromagnetic Methods       +   Geoelectrics - Crosshole tomography   Electrical Methods       +   Geoelectrics - Tomography (surface based)   Electrical Methods       +   Ground penetrating radar (surface-based)   Electromagnetic Methods       +   Ground penetrating radar - Borehole tomography   Electromagnetic Methods       +   Ground spectrometry   Radioactivity       +   Self potential   Electrical Methods       +   VLF / VLF-R, Radiomagnetotellurics   Electromagnetic Methods       0   DC geoelectrics - Profiling   Electrical Methods       0   Refraction seismic tomography (surface-based)   Seismic Techniques       0   Seismic crosshole tomography   Seismic Techniques Search Again         Applicable Techniques