TM No. 377 



APPENDIX B 

 STATISTICAL ANALYSIS AND AUTO -SPECTRA PLOTS OF WAVE DATA 



Spectral Data 



Listings of spectral data are given for series 020 through 124 (BBELS-8 

 through BBELS-16, using the OMDUM III and LIMDUM I wave meters). 



The first line contains the consecutive serial observation (020^ etc). 

 This is followed by III = OMDUM III measurement producing u and w; or by 

 LI-u or LI-w = LIMDUM I measurement of u^ and U2 or w-|_ and W2, respectively. 

 Note that the BBELS-11 series (03O-O69) was made with LIMDUM I; but only one 

 channel is operative ;, thus the statistics of a single w are given. 



The second line of the format consists of: the BBELS number, the depth 

 (in meters) and the nth measurement at that depth (Roman numerals), the date, 

 and the approximate time interval. 



The third line consists of the lag number, the number of data points (n), 

 and the interval of sampling of interpolated data (DT). The fourth line gives 

 the mean values of the variables (u and w, U2_ and w^, or U2 and wp). 



The fifth line lists the following parameters (column headings), which 

 are defined in chapter III. (X = the variable measured. ) 



K = Frequency and lag index. 



ACOV X^TY = Auto -co variance functions of X-|_ and Xp • (Note, ACOV X at 

 ACOV Xg J K = is the variance of X or a^.) 



COV IN = In-phase covariance function of X^ and X y. (N ote, GOV IN 

 at K = is the covariance or ty X-,^^) ~ X-ZX^-) 



COV OUT = Out -of -phase covariance function of X-|_ and Xo • 



SP X2_ SP X2 = Auto-spectra functions of X-i_ and Xg . 



CO = Co -spectrum function of X-|_ and Xp • 



QUA = Quadrature spectrum function of X2_ and Xg • 



PER = Period in seconds . 



R = Coherence function of the cross -spectrum with the auto -spectra. 



PHI = Phase lag function between X-|_ and Xo • 



B-1 



