Journal of the Irrigation and Drainage Division. Vol. 117 No. 3 (1991).

It contains of Papers, Technical Note, Discussions for 1991 in Vol. 117 No. 3.

TECHNICAL PAPERS : Alternative Linear Weir Design / Prabhata K. Swamee, Santosh K. Pathak, Mahesh Agarwal, and Anwar S. Ansari. Sensitivity of Reservoir Sizing to Evaporation Estimates / K. C. Gan, T. A. McMahon, and I. C. O'Neill. Importance of Demand Estimation in Irrigation-System Management / Numan Mizyed, Jim Loftis, Ramchand Oad, and Alan Early. Overseas Perspectives for Managing Irrigation Drainage in California / Emery M. Roe. Irrigation of Small-Level Basins in Egypt / Wadie F. Mankarious, Timothy K. Gates, and Mohamed A.-H. Rady. Centralized Scheduling Logic for Canal Operation / G. P. Merkley and W. R. Walker. Projectwide Water-Order Scheduling by Computer / Brian J. Boman and Charles Higgins. Simulation of Supplemental Irrigation from On-Farm Ponds / J. G. Arnold and C. O. Stockle. Local Scour Downstream of Box-Culvert Outlets / H. Abida and R. D. Townsend. TECHNICAL NOTE : Critical Depth, Velocity Profile, and Channel Shape / R. J. Heggen. DISCUSSIONS : Water Management for Lowland Rice Irrigation. Fathima Z. Siddeck, Theo A. Dillaha, and G. V. Loganathan / Ananda D. Moonasingha. Hydrologic Balance Model using Neutron Probe Data. Richard H. Cuenca / Fred I. Morton. Closure by author. Agricultural Drainage Water-How Should it be Regulated in California. Stephen K. Hall, William R. Johnston, and William J. Miller / Arthur F. Pillsbury. Simulation Models of Sequences of Dry and Wet Days. J. W. Delleur, T. J. Chang, and M. L. Kavvas / Zekai Sen. Closure by authors.