18 
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: 
6.1077 
745; 103 bot bs,n +5t,p. 
V;, t, Dine 1 
where 6,=density; 6,=density correction for pressures; 63,»=Cor- 
rection for salinity under various pressures; 6;,,=correction for 
temperature under various pressures; V, 4,,=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°. Teas fe aa - 
is reprinted herewith, and the three tables for the last three 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. 
Tas_eE IIT 
6, 10% 
10°. —*-——__, 
1+6,.10 
be 0.00 0.10 | 0.20 0.30 0.40 0. 50 0. 60 0.70 | 0.80 0.90 
2 2344 2353 2363 2372 2387 2391 2401 2410 2420 2430 
25 2439 24. 24. 2468 2477 2487 2496 2506 2515 2525 
26 2534 2544 2553 2563 2572 2582 2591 2601 2610 2620 
27 2629 2638 2648 2657 2667 2676 2686 2695 | 2705 9714 
