claims to have remedied this circuitry problem It is for these reasons that additional filter- 

 in the newer model 9040 STD system. In addi- ing is applied to the salinity trace alone. Fig- 

 tion, the numbers used in the salinity correction ure 6 presents a running mean of 10, applied to 

 formula given above are only approximate and the salinities used to produce the profile in fig- 

 may be seriously in error for some instru- ure 5. The type of secondary salinity filtering 

 ments and for very different drop rates than will ultimately depend on the user's application 

 assumed here. of the data. 



