





















26.125 













lJU JlJlJIJI . 





26.0 















TWPW 





5 25.875 



- 







. (I 





^fld 



1 fl (l H n .fl _• ai 









MJlr' 



All fir 



L 



n^iw/lrml 



« nnriru.- 



-nn^iJ 



L iJlJll 1 ^^ 





Ul 



< 25.75 



nrw 



iiV|/u 



w 



/l/ U T|| r |/U l |/VV , ' y " 



U M ^J Lr l/ 1 u L 













a 







U J J 11 





UNDS/! 



- 



i. 



ij ,j Jui iJt^iWk 





a. 26.125 



iwiA 



\ML 



k4jl«if ™ 





26.0 



"^VTf^Yl 



r f *ty f l|VV J l ' T " » F|H 1 if r ™ 







- 





25.875 







25.75 





10 20 30 40 50 



DAYS 



Figure 31 . Pressure data collected by two gages mounted on a tripod off Mobile Bay, 



Alabama. The upper record is from a gage with a plugged pressure orifice. The 

 abrupt increase in pressures near day 43 was caused when a fishing boat struck 

 and overturned the tripod 



26.10 - 



512 

 SECONDS 



Figure 32. Example of a single wave burst of 1,024 pressure points from the same gages 

 that produced the records in Figure 31 . The data from the plugged gage (the 

 upper curve) are not only reduced in amplitude but also shifted in phase. It is 

 essentially impossible to correct the plugged data and recreate even an 

 approximation of the original 



84 



Chapter 5 Analysis and Interpretation of Coastal Data 



