Goshogake - Electrical Survey in Japanese Snow

We investigated the subsurface plumbing system of the active Goshogake geothermal system (Akita prefecture), which manifests in surface with hot fluids emanations. Deep Electrical Resistivity Tomography was the perfect tool to highlight the contrast between very conductive fluid-rich regions and the solidified dry mud which surrounds the whole system. Field conditions were tough and we had to deal with heavy snowfall and keep a constant lookout for slumping ground and hidden hot mud pools. Nevertheless we conducted the survey in 3 days, covering an area of over 1 square kilometer with dozens of autonomous recievers to retrieve a full 3D resistivity model.