Fix)di'aiii Deseripiioii 



Program Title 103R-41C Shallow-Water Wave Forecasting Equations (RPN Logic) 



Name ^.L. Walton, Jr. D„, 3^/82 



Coastal Engineering Research Center 

 Address „. „ . , , . ^ 



Kingman Building 



^ Fort Belvoir, ^'"^ Virginia ^'^"^ 22060 



Program Description, Equations, Variables, etc. 



This algorithm computes the wave height, H, wave period, T, and minimuip 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 unlimited 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, VJashington, 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. ARl-IY, 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 



If a printer is not used, R/S must be inserted where output values are 

 desired (i.e., where printer output steps are deleted). 



103R-41CV-1 



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