TY - SER TI - Journal of Hydraulic Engineering.. Vol. 109 No. 2 (1983) PY - 0000///[date of publication not identified] CY - New York : American Society of Civil Engineers. N1 - It contains of Papers, Technical Notes and Discussions on February 1983 in Vol. 109 No. 2; Two-Dimensional Channel Flows over Rough Surfaces / Neil L. Coleman and Carlos V. Alonso. Air Voids at Downshaft-Tunnel Bends / Barry T. Goldring. Plume Dilution for Diffusers with Multiport Risers / Morton S. Isaacson, Robert C. Y. Koh, and Norman H. Brooks. Optimal Diameter Selection for Pipe Networks / Ronald E. Featherstone and Karim K. El-Jumaily. Pressure on Annular Wing Surface / Pai-Mow Lee and Chi-Kai Kwok. T'hree-Dimensional Single and Multiple Free jets / Bidyasagar Pani and Raghunath Dash. Velocity Distribution in Smooth Rectangular Open Channels / Kandula V. N. Sarma, P. Lakshminarayana, and N. S. Lakshmana Rao. TECHNICAL NOTES : Paper 17669 - Radar Rain Forecasting for Wastewater Control / Christine Damant, Geoffrey L. Austin, Aldo Bellon, Mohamad Osseyrane and Nam Nguyen. Thermal Dependent Physical Properties of Water / Richard J. Heggen. Antidune Movement / Subhash C. Mehrotra. Permissible Velocity Correction Factors / Subhash C. Mehrotra. General Method for Critical Point on Spillways / Ian R. Wood, Peter Ackers, and John Loveless. Effective Impervious Area in Urban Runoff Modeling / William M. Alley and Jack E. Veenhuis. DISCUSSION : Paper 17665 - Boundary Shear in Smooth and Rough Channels / Donald W. Knight Ouly, 1981. Prior Discussion: June, 1982). Closure. Erosion by Submerged Circular Jets / Nallamuthu Rajaratnam (Feb., 1982). Errata. Lower Flow Regime Bedforms: Rational Classification / Timothy R. H. Davies (Mar., 1982). Errata. Improvement of Nonlinear Rainfall-Runoff Model / Otto J. Helweg and Ralph H. Finch (July, 1982). Errata ER -