APPENDIX A 



A COLLECTION OF DIRECTIONAL OCEAN WAVE 

 BOTTOM PRESSURE POWER SPECTRA 



This appendix is a collection of the results of a least square, 

 directional, single-wave train analysis of the cross power spectral 

 matrix resulting from the analysis of ocean bottom pressure data. The 

 data were collected at Stages I and II offshore from Panama City, 

 Florida, during 1965. The data collection system and the estimation of 

 the cross power spectral matrix associated with a set of data are 

 described in Bennett, et al (June 1964). Augmented pentagonal arrays, 

 containing six pressure transducers each, were located seaward of each 

 of the stages. Stage I is 11 miles offshore in approximately 103 feet 

 of water, and Stage II is 2 miles offshore in approximately 63 feet of 

 water. 



Certain parameter values are pertinent to the directional analyses 

 presented: the number of data points in each pressure data set is 

 N = 1800; the sampling rate is once per second. At = 1 second. On the 

 cylindrical polar plots frequency is the radial variable and compass 

 bearing the angular variable. The vertical axis is log^Q of power 

 spectral density in inches -seconds of water pressure. The frequency 

 axis range is to 0.3 Hz in 0.05 Hz increments. This is illustrated 

 in Figure 7 of the report. In each plot title, the date, time, and 

 location (stage) is indicated. The value WD is wind direction in com- 

 pass degrees, and WS is wind speed in knots. Appendix B gives a listing 

 of the FORTRAN II computer program used to produce the plots. 



A-1 



