Mini-subs exploring Sacramento River
If you reel in a small sub instead of a rainbow trout from the Sacramento River this summer, don't call Homeland Security.
It belongs to a team of researchers from the University of California at Berkeley trying to learn more about the river currents in the delta.
The researchers are working with propelled 4-foot-long submarines and floating drifters equipped with GPS-receivers for positioning, GSM-modules for communication, and sensors inside for recording temperature, salinity, and currents.
"We are prototyping an infrastructure and testing it in the delta," said Professor Alexander Bayen, who leads the team at UC Berkeley'… Read more