Electromagnetic surveys provide an excellent opportunity to gain a more detailed understanding of the subsurface between wells. Compared to wells, these surveys can rather inexpensively provide a greater spatial coverage. This will greatly improve the development of the HCM. As a data greedy hydrogeophysicist, Max Halkjaer will show you examples from California on how electromagnetic surveys provide detailed 3D images bringing the understanding of the subsurface to a new level. Offered by American Water Resources Association.