Military

Underground criminal and terrorist activities pose a serious threat to the security and defense of any country. Today, with the existence of surface control and monitoring tools such as cameras and radars, criminal activities are being conducted away from the visible range of these tools, i.e., underground, and these subterranean threats are increasing. Communication tunnels used for smuggling drugs, weapons, and people are among the underground threats. Also, identifying underground warehouses and shelters dug to hide weapons, missiles, and individuals is of special importance. These types of activities are all carried out deep underground, away from human eyes and security cameras. The excavation of tunnels and construction of underground warehouses is expanding daily and is used by both security agencies and anti-security groups. Security and military agencies are interested in identifying these targets to prevent criminal activities. Given that these targets are located underground, the most important tools that can be used for their identification are geophysical methods. Various geophysical methods help identify and discover these targets. Different geophysical methods are employed based on the type of targets. The most commonly used geophysical methods for security and military issues are: Seismic, Geoelectric, GPR, and Magnetometry.