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 ...

Although we generally think of Internet of Things (IoT) and similar devices as things that are scattered around above ground, there are plenty of reasons to also have such devices underground. These ...

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 ...