TY - RPRT TI - Automatic mapping of the base of aquifer — A case study from Morrill, Nebraska AU - Mats Lundh Gulbrandsen AU - Lyndsay B. Ball AU - Burke J. Minsley AU - Thomas Mejer Hansen PY - 2017 DO - 10.1190/int-2016-0195.1 UR - https://pubs.usgs.gov/publication/70193740 ID - 70193740 ER -