Surface NMR with long excitation pulses - technicality or game changer?

Surface nuclear magnetic resonance (SNMR) is a unique geophysical method; it is the only method that can assess water content and aquifer properties in the subsurface without drilling a costly borehole. The method holds great promise for groundwater exploration and sustainable groundwater management, but several scientific and technical challenges remains to be investigated and solved before the method can become an ubiquitous tool. One of these challenges is an insufficient ability to measure deep groundwater systems. Unfortunately, it is impossible to increase the depth range of SNMR with bigger instruments – novel approaches are called for. We will explore if a SNMR paradigm based on very long excitation pulses can be used to assess deep groundwater systems.