Fro^i*aiii Descripiion 



Program Title 103A Shallow-Water V7ave Forecasting Equations (AOS logic) 



Nam* VJ.A. Birkemeier Data 5/81 



Address CERC Field Research Facility 



Ciiy Kitty Hawk, SiaieNorth Carolina Zip Code 27949 



Program Description, Equations, Variables, etc 



This algorithm computes the wave height, H, wave period, T, and minimum 

 duration, t, from input values of the water depth, d, fetch length, F, and 

 adjusted windspeed, Ua, using equations (1), (2), and (3) of CETN-I-6. 

 Equations (1) and (2) are for constant water depth and unlimited wind dura- 

 tion and have been revised from equations (3-25) and (3-26) of the Shore 

 Protection Manual. Wave height and period in this algorithm are significant 

 wave height and period. Algorithm uses English or metric system of units. 



REFERENCES 



U.S. ARMY, CORPS OF ENGINEERS, COASTAL ENGINEERING RESEARCH CENTER, Shore 

 Protection Manual, 3d ed., Vols. I, II, and III, Stock No. 008-022-00113-1, 

 U.S. Government Printing Office, Washington, D.C., 1977, 1,262 pp. 



U.S. ARMY, CORPS OF ENGINEERS, COASTAL ENGINEERING RESEARCH CENTER, "Method 

 for Determining Adjusted Windspeed, U^, for Wave Forecasting," CETN-I-5, 

 Fort Belvoir, Va., 1981. 



U.S. ARMY, CORPS OF ENGINEERS, COASTAL ENGINEERING RESEARCH CENTER, "Revised 

 Method for Wave Forecasting in Shallow Water," CETN-I-6, Fort Belvoir, 

 Va., 1981. 



U.S. ARMY, CORPS OF ENGINEERS, COASTAL ENGINEERING RESEARCH CENTER, "Revised 

 Method for Wave Forecasting in Deep Water," CETN-I-7, Fort Belvoir, 

 Va., 1981. 



Operating Limits and Warnings 



103A-1 



45 



