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TABLES FOR CONVERTING DENSITIES INTO SPECIFIC VOLUMES 



IN SITU 



In order to obtain values of specific volume in situ, Hesselberg 

 and Sverdrup have arrived at the following formula: 



F«.,.n=:l 



5t.lO- 



B, t,p 



l+5t.lO 



:=3 + 5p + 5g,p + 5t,p. 



where 5t = density; 5p = density correction for pressures; 5a,p = cor- 

 Tection for salinity under various pressures; 5t,p = correction for 

 temperature under various pressures; F3, t,p = specific volume in 

 situ. These four arguments have been arranged in an equal number 

 of tables by Hesselberg and Sverdrup, "Beitrag zur Berechnung der 

 Druckund Masserverteilung im Meere." Bergens Museums Aarbok, 



1914-15, Nr. 4. The first table representing the value 10^ ^r-^ — ttt^' 



is reprinted herewith, and the three tables for the last tliree terms 

 have been combined in one table (Table IV) , which makes reference 

 much easier and without sacrifice of the requirements of practicality. 

 When employing Tables III and IV in the method of computations 

 as followed on page 32 it is well to note that the values as carried in 

 Table III are from the nature of the equation (shown at the head of 

 this page) of a negative character. In Table IV the corrections for 

 the three factors, viz, pressure, salinity, and temperature, as they 

 affect the specific volume in situ, are combined in accordance with 

 signs as indicated at the head of Table IV. An example of the 

 application of Tables III and IV is given in the computations for 

 two oceanographic stations, 205 and 206, page 28. 



10= 



Table III 

 St. 10-3 



l+SflO-s 



