Uncertainty about the effects of land use and climate on water movement in the unsaturated zone and on groundwater recharge rates can lead to uncertainty in water budgets used for groundwater-flow models. To better understand these effects, a cooperati
Steele, Gregory V. gvsteele@usgs.gov,Gurdak, Jason J.,Hobza, Christopher M. cmhobza@usgs.gov. Water movement through the unsaturated zone of the High Plains Aquifer in the Central Platte Natural Resources District, Nebraska, 2008-12. 2014-01-01.