Geophysical methods are powerful tools to explore the subsoil for environmental investigations. The fields of application can be hydrological and hydrogeological characterization and monitoring, slope stability assessments, archaeological surveys, locating voids and karstic features, soil characterization, and so forth. Ground-penetrating radar (GPR), seismic, DC resistivity, electromagnetic induction, gravity, and magnetic methods are the most used, while the use of other technologies, such as telemetry, has grown over the past decades. The available techniques are characterised by different penetration and resolution capabilities, from few centimeters to kilometers. For this reason, there is a drive in the scientific community towards the integration of geophysical methods in order to detect and characterize the subsoil from the analysis of different physical properties. Potential topics include, but are not limited to:

• Innovative geophysical instruments and acquisition
• New information on the relationships between geophysical properties of the shallow subsoil (first kilometer)
• Integration and joint analysis and inversion of geophysical data

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