Stanford tTEM

Solving groundwater problems in the Central Valley of California

This project aims to map the subsurface geology with geophysical methods to solve the water problem in the central valley of California in the USA. This area has been suffering from a severe drought which has been growing for years. In 2014, it has recorded worst drought year of the past 100 years. The Stanford university-led project has conducted a Skytem survey in the region, in order understanding the aquifers and surrounding geology. This is to find the location where to most effectively drill as well as where water is needed to best recharge the aquifer. For planning the artificial recharge site, a more precise and high-resolution knowledge of the geology (sand, gravel or clay) is needed. For the above purpose, Stanford University has joined the hand with HydroGeophysics Group to conduct tTEM surveys in the fields of the Tulare Irrigation District, one of the most arid regions of California. With the high-resolution capability of the tTEM system, we hope to discover suitable sites for artificial recharge.

Stanford University, HydroGeophysics Group (Aarhus University).