Geophysical Mapping: Problem Findings Displays the valid Assignments. To display specific method information, click on the method name.  Problemtype  Problem  Assigner  Method  Methodtype   Buildings and Structures   Quality of roads/ airfields   +   Ground infrared thermography   Thermic Methods       +   Ground penetrating radar (surface-based)   Electromagnetic Methods       0   Refraction seismic tomography (surface-based)   Seismic Techniques       0   Standard refraction seismics   Seismic Techniques Search Again         Applicable Techniques