Easy — make your own homebrew water depth logger. Thankfully ... and matplotlib stitches that data together into a bathymetric map of the harbor, with pretty fine detail. The chart also takes ...

Researchers have created a simulation that maps underground water on a continental scale. The result of three years' work studying groundwater from coast to coast, the findings plot the unseen path ...

A new study mapped continental groundwater flow, revealing that rain and snowmelt travel much farther and deeper underground ...