PREFACE 



This report was prepared by the Coastal Engineering Research Center 

 (CERC) , US Army Engineer Waterways Experiment Station (WES), and is a product 

 of the Los Angeles and Long Beach Harbors Model Enhancement (HME) Program. 

 The HME Program has been conducted jointly by the Ports of Los Angeles and 

 Long Beach (LA/LB); US Army Engineer District, Los Angeles (SPL) ; and WES. 

 The purpose of the HME Program has been to provide state-of-the-art engineer- 

 ing tools to aid in port development. In response to the expansion of ocean- 

 borne world commerce, the LA/LB are conducting planning studies for harbor 

 development in coordination with SPL. Ports are a natural resource, and 

 enhanced port capacity is vital to the Nation's economic well-being. In a 

 feasibility study being conducted by SPL, the LA/LB are proposing a well- 

 defined and necessary expansion to accommodate predicted needs in the near 

 future. The CE will be charged with responsibility for providing deeper 

 channels and determining effects of this construction on the local 

 environment . 



This investigation involved collection of prototype tidal circulation 

 data for use in the calibration and verification of a three-dimensional numer- 

 ical circulation model. Data collection occurred between June and October 

 1987 by personnel of the Prototype Measurement and Analysis Branch (PMAB) and 

 the Field Research Facility (FRF) Group, Engineering Development Division. 

 Design and installation of the measurement system were under the supervision 

 of Messrs. William Kucharski and William E. Grogg, Equipment Specialists, 

 PMAB, with the assistance of the University of Southern California Marine 

 Support Facility. The PMAB personnel involved in data collection were 

 Messrs. Michael S. Dickey, Douglas C. Lee, Jeffery A. Sewell, C. Ray Townsend, 

 and Ralley Webb. The FRF personnel were Messrs. Kent K. Hathaway, Michael W. 

 Leffler, and Brian Scarborough and Ms. Adele Militello. Data collection was 

 performed under the supervision of Mr. David D. McGehee , PMAB. Data analysis 

 was performed by Mr. James P. McKinney, PMAB, and Mr. McGehee. Technical 

 supervision was provided by Mr. Gary L. Howell, PMAB, and technical assistance 

 by Dr. S. Rao Vemulakonda, Coastal Processes Branch, Research Division, WES, 

 and Mr. William C. Seabergh, Wave Processes Branch, Wave Dynamics Division, 

 WES. Additional data were provided by the US Air Force Technical Applications 

 Center and the Sea and Lake Levels Branch of the National Ocean Service. The 



