Sprinklers irrigate a field in Hamilton County, Kansas. Decades of irrigation has slowly drained the Ogallala Aquifer. (Allison Kite/Kansas Reflector) Aquifer levels in parts of western Kansas that ...

The team of researchers was able to map the extent of the aquifer by relying on previous field work in the 1980s and 1990s during which scientists had drilled holes to measure temperatures deep ...