Journal of The Hydraulics Division. Vol. 107 No. 11 (1981). 

 - New York : American Society of Civil Engineers.  [date of publication not identified] 
 - p. 
<br/><br/> It contains of Papers, Technical Note and Discussions on November 1981 in Vol. 107 No. 11. 
<br/><br/>Introduction to Six Papers on Hydraulic Models. Development of the River Seine Estuary: Case Study / Fran_Vois Parthiot. Prevention of Shoaling at Port Orford, Oregon / C. E. Chatham. Umfolozi Road Bridge Hydraulic Model Investigation / J. A. Zwamborn. Modeling Cavitation for Closed Conduit Flow / J. Paul Tullis. Physical Modeling of Rotterdamse Waterweg Estuary / Herman N. C. Breusers and Ad G. van Os. Heated Discharge in an Estuary: Case Study / James B. Nystrom, George E. Hecker, and Han C. Moy. Instrumentation for Aerated Flow on Spillways / Paul Cain and Ian R. Wood. Measurements of Self-Aerated Flow on a Spillway / Paul Cain and Ian R. Wood. Bed Load Discharge Coefficient / Peter Engel and Y. Lam Lau. Particle Counter for Sediment Transport Studies / John P. Downing, Jr. Buoyant Surface Jets / Gerhard H. Jirka, E. Eric Adams, and Keith D. Stolzenbach. Hydraulic Exponents / Ven Te Chow. Modeling Circulation in Depth-Averaged Flow / Victor M. Ponce and Steven B. Yabusaki. Approximate Error Bounds for Simulated Hydrographs / David C. Garen and Stephen J. Burges. SWMM Model and Level of Discretization / Nabil A. Zaghloul. Efficient Cooling Ponds: Design / Gerhard H. Jirka, Carl F. Cerco, and Donald R. F. Harleman.  DISCUSSION : Proc. Paper 16615 - Aggradation in Streams Due to Overloading / Jagdish P. Soni, Ramachandra J. Gardo, and Kittur G. Ranga Raju (Jan., 1980. Prior Discussions: Nov., 1980). Closure. Finite Element Method for Direct Runoff Flow / Mutsuto Kawahara and Teruyuki Yokohama (Apr., 1980. Prior Discussion: Mar., 1981). Closure. Calibration of Bed-Load Samplers / Peter Engel and Y. Lam Lau (Oct., 1980, Prior Discussion: May, 1981). Closure. Adaptation of ILLUDAS for Continuous Simulation / Harry G. Wenzel, Jr., and Michael L. Voorhees (Nov., 1980). Errata. Erosion by Circular Wall Jets in Cross Flow / Nallamuthu Rajaratnam (Nov., 1980). Errata. Sand Bed Instability Due to Bed Load Motion by Hiroji Nakagawa and Tetsuro Tsujimoto (Dec., 1980) / A. J. Sutherland, B.C. Phillips, and R. G. Bell. Re-Examination of Nikuradse Roughness Data by William R. Brownlie (Jan., 198 1) / R. Fuentes and S. Carrasquel. Modeling Transverse Mixing in Natural Systems by Y. Lam Lau and B. G. Krishnappan (Feb., 1981) / Forrest M. Holly, Jr., Nobuhiro Yotsukura. Uncertainties Resulting from Changes in River Form by Durl E. Burkham (May, 1981) / Victor M. Ponce.