Watching the Watershed: Wireless sensor networks uncover the real water cycle

"Water, water, everywhere, / Nor any drop to drink." These words, written by Samuel Taylor Coleridge in the 18th century, may soon describe the 21st. In fact, access to fresh water is already an issue of global concern. Scientists involved in UC Berkeley's Keck HydroWatch Center, established in 2006, are hoping to correct our sketchy comprehension of the water cycle by delving into a study so detailed that the water will have nowhere to hide.