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Publications by Johns, N.D.

Title Publication Year Abstract Author Series Publisher
Playas and recharge of the Ogallala aquifer on the southern High Plains of Texas -- an examination using numerical techniques Playas and recharge of the Ogallala aquifer on the southern High Plains of Texas -- an examination using numerical techniques 1997

This study used a numerical model to examine the playa-focused recharge theory by comparing it with the spatially uniform approach and with a zonal approach.

Mullican, W.F., Johns, N.D., Fryar, A.E. Report of Investigations Bureau of Economic Geology