Form Approved 
3 REPORT DOCUMENTATION PAGE 
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1. AGENCY USE ONLY (Leave blank) | 2. REPORT DATE 3. REPORT TYPE AND DATES COVERED 
April 1994 Final report 
4. TITLE AND SUBTITLE 5. FUNDING NUMBERS 
Los Angeles and Long Beach Harbors, Model Enhancement Program, 
Effects of Wind on Circulation in Los Angeles-Long Beach Harbors 
6. AUTHOR(S) 
William C. Seabergh, S. Rao Vemulakonda, 
Lucia W. Chou, David J. Mark 
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING ORGANIZATION 
; : : REPORT NUMBER 
U.S. Army Engineer Waterways Experiment Station 
3909 Halls Ferry Road, Vicksburg, MS 39180-6199 
9. SPONSORING/ MONITORING AGENCY NAME(S) AND ADDRESS(ES) 10. SPONSORING / MONITORING 
AGENCY REPORT NUMBER 
See reverse. Technical Report CERC-94-7 
11. SUPPLEMENTARY NOTES 
Available from National Technical Information Service, 5285 Port Royal Road, Springfield, VA 22161. 
12a. DISTRIBUTION / AVAILABILITY STATEMENT 12b. DISTRIBUTION CODE 
Approved for public release; distribution is unlimited. 
13. ABSTRACT (Maximum 200 words) 
A previously calibrated numerical three-dimensional hydrodynamic model for Los Angeles-Long 
Beach Harbors, California, was applied to study the combined effects of tide and wind on circulation. The 
model was calibrated and verified successfully with field data for a summer wind condition. In this report 
the calibration is compared to a no-wind condition to understand the effects of typical wind conditions on 
circulation. Also, wind conditions for approaching (winds from the southeast) and passing (winds from 
the north) frontal systems, typical of fall-winter weather patterns, were simulated. Results indicated the 
effects of wind can be significant. 
14. SUBJECT TERMS 15. NUMBER OF PAGES 
Harbors Long Beach Harbor Wind-driven circulation 
Hydrodynamics Numerical models 16. PRICE CODE 
Los Angeles Harbor Tidal circulation ae | 
17. SECURITY CLASSIFICATION | 18. SECURITY CLASSIFICATION . SECURITY CLASSIFICATION | 20. LIMITATION OF ABSTRACT 
OF REPORT OF THIS PAGE OF ABSTRACT 
UNCLASSIFIED UNCLASSIFIED 
NSN 7540-01-280-5500 Standard Form 298 (Rev. 2-89) 
Prescribed by ANSI Std. Z39-18 
298-102 
