Power for instruments, heating, and 

 lighting is provided by San Diego public 

 utility facilities. This large transformer 

 converts the 4160-volt line power, sent 

 over submarine cable, to 440, 220 and 

 110 volts. Total transformer capacity is 

 30 kilowatts. A 110-volt supply is also 

 available. 



•*•' 



The instrument house roof also serves as a platform for sea-surface 

 observations. Direction and speed of current can be determined by 

 tracking the floats of suspended drogues with a transit mounted at a 

 known fixed position. 



Air compressor and compressed air tank 

 provide air for hookah, bubble screen, and 

 other uses. One hundred cubic feet is 

 available at 125 psi, at the rate of 20 cu. 

 ft./min. 



125 



