Row Speclrol Lines 



Smoothed Spectrum 



Water Level Vorionce = 9 7ft' 



Vorlance Approx. Equals 2js(f)df 



020 

 Frequency (c/s) 



Figure 1. Hurricane Carla spectrum record number 6877, 

 0600 hours, 8 September 1961. 



300 - 













- 



• 





Goussion Smoothing by Weighted 

 Values (a:3/if) 















Woter Level Variance = 12 5ft^ 

 Variance Approx Equals 2fs(f)df 



















A . 









- 



1 \i" 











1 •^' 



; 









, J:-'- :••;■•-'. 



•n%^ 



Tr-.-'V"'' J'> A-?:- V. Y^*-i-?^-;-»rrt-tv^w.^ — 



^ 



0.05 



0.15 0.20 



Frequency (c/s) 



0.30 



0.35 



Figure 2. Hurricane Carla data number 6878, 1200 hours, 



8 September 1961. Various smoothings of spectral data. 



