Using state of the art techniques, researchers use vibrations from traffic to measure underground soil moisture. Caltech researchers have developed a new method to measure soil moisture in the shallow ...

A group of researchers from the California Institute of Technology (Caltech) has unveiled a pioneering method to measure soil moisture in the vadose zone-the shallow region between the earth's surface ...

Caltech researchers have developed a new method to measure soil moisture in the shallow subterranean region between the surface and underground aquifers. This region, called the vadose zone, is ...