TOTAL POWER SPECTRUM 



The relative power in the power spectrum was determined 

 approximately by integrating under the curve of the power 

 spectrum for the frequency band between 0. 05 to 0.30 cpm. 



= / U(h) df 



An example of the power in this band at section Q (fig. 15) 

 is shown (fig. 32). The integrated values in the band 0. 05 to 

 0. 30 cpm are plotted with reference to their geographic position 

 (figs. 33 and 34) and the values are contoured. In the shallow 

 isotherm the values for the integrated power in the band, U B , 

 that fall between 0. 05 and 0. 30 cpm vary from 104. 5 to 19. 2 ft . 



The geographic distribution of U B (fig. 33) shows the values 

 decreasing with increasing distance. The inverse relationship of 

 U B to distance finds the highest values of U B nearest the southern 

 end of Baja California. In the deep isotherm, the values U B for 

 the integrated curve are between 136. 6 and 16. 8 cpm. The 

 higher values also fall near the end of Baja California and to the 

 south. The distribution may be interpreted as a measure of 

 thermal structure roughness similar to that for wave lengths and 

 the slope. 



61 



