Table V 



Scheme of Nomenclature Used for Forecasting in ttie Presence of a Second Wind System 



Locality for which forecast is deslred- 

 < F 3 



I I 



'^No 



Second 

 Wind 

 Area 



Wind Velocity 

 Wave Height 

 Wave Period 



I L 



r' 



I Second i 

 Wind I 

 Area 



I Present ' 



I L. 



Wind Velocity 

 Wave Height 

 Wave Per iod 



[Special |D' = 0| "^ ' ITp-Tp 

 I Case „ Hi3"=Hd 



:^_i. 



■■■■^ 

 Second Wind Area 



iffff 



I 1 — r 



I Special I I 



. Case , d"=D . 



' -^ ' ' Hry;u'=HD,u'! 



"d"="d iTq.^To 



I 1 — r r 



!Tas;'!D' = o! H,. = Hp It,.T, 



L— _l L 



Definitions : 

 D 

 D' 

 D" 



"d",u' 



Distance from end of generating orea to locality for which forecast is desired. 



Distance from end of generating area to beginning of second wind area. 



Distance from end of generating area to end of second wind area. 



Wave height at the beginning of second wind area. 



Wove height at the end of second wind oreo 



Wave height at the end of second wind area, if secondary wind U' were zero. 



( The same system of notations applies to wave periods, except that T^" y' always equals Tj-," ) 



» Note: Hq', '^d"i^D' 1 ^D"i °^^ wove heights and periods in area of decoy at distonces D'ond D" from generating 

 area. (No second wind area ) 



40 



