I^i'o^niiii Descriplion 



Program THIe 103R Shallow-Water Wave Forecasting Equations (RPN logic) • 

 Name T.L. Walton, Jr. Dot* 10/80 



Address Coastal Engineering Research Center 



Cily 



Kingman Building 

 Fort Belvoir, 



Slat* 



Virginia 



ZipCDd* 



22060 



Program Description, Equations, Variables, etc. 



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

 tion, 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. Equa- 

 tions (1) and (2) are for constant water depth and unlim.ited wind duration 

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

 tion 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 



103R-1 



41 



