Table 1. Normalized form regression (analysis average 

 of percent variance in regression of 

 normalized form against frequency, f, 

 explained by f ). 



Gage 



Mean 



Deepwater 



Finite-depth 



Shallow-water 





depth 



form^ 



form^ 



limit form^ 





(m) 









XERB 



36 



43 



17 



48 



710 



25 



53 



28 



8 



630 



18 



40 



13 



10 



620 



17 



55 



24 



18 



625 



9 



68 



35 



32 



655 



5 



70 



60 



59 



615 



2 



72 



60 



59 



Since the proposed form is supposed to remove variation 

 with f , a high explained variance with f indicates that 

 the form does not fit the spectra well. 



2f5 E(f) (2Tr)-'*/g2 



3f5 E(f) (2TT)-'*/g2 $ (ojh) 



"^fS E(f)/gj^ 



Table 2. Average slope, XlO 

 against f-^. 



-3 



Gage 



ap(f) 



%(f) 



a3(f) 



XERB 



31 



17 



10 



710 



54 



35 



4 



630 



47 



18 



-3 



620 



49 



25 



3 



625 



82 



81 



35 



655 



60 



101 



53 



615 



18 



67 



33 



^Slope a is unit change of 

 a per hertz. Region of the 

 spectrum analyzed in regression 

 analysis is about 0.1 hertz. 



