256 



HYDROGRAPHIC MANUAL 



Table 14. — Velocity of sound in sea wateD — in meters per second, at surface atmospheric 



pressure and salinity 35 ° Uo. 



[Enter this table with the temperature. Apply a correction for salinity from table 15, and a correction for pressure from table 16.] 



Temp. °C. 



-1 

 -0 





 1 

 2 

 3 

 4 

 5 



6 

 7 

 8 

 9 

 10 



11 

 12 

 13 

 14 

 15 



16 

 17 

 18 

 19 

 20 



21 

 22 

 23 

 24 

 25 



26 

 27 

 28 

 29 



1440,8 

 1445.4 



1445.4 

 1450.0 

 1454.4 

 1458.8 

 1463.1 

 1467.2 



1471.3 

 1475.3 

 1479.2 

 1483.0 

 1486.7 



1490.3 

 1493.8 

 1497.2 

 1500.6 

 1503.8 



1506.9 

 1510.0 

 1513.0 

 1515.9 

 1518.7 



1521.4 

 1524.1 

 1526.7 

 1529.2 

 1531.7 



1534.1 

 1536.4 

 15.38.7 

 1540.9 



40.3 

 45.0 



45.9 

 50.4 

 54.9 

 59.2 

 63.5 

 67.6 



71.7 

 75.7 

 79.6 

 83.4 

 87.1 



90.7 

 94.2 

 97.6 

 00.9 

 04.1 



07.2 

 10.3 

 13.3 

 16.2 

 19.0 



21.7 

 24.4 

 27.0 

 29.5 

 31.9 



34.3 

 36.7 

 .38.9 

 41.1 



39.9 

 44.5 



46.3 

 50.9 

 55.3 

 59.6 

 63.9 

 68.0 



72.1 

 76.1 

 80.0 

 83.7 

 87.4 



91.0 

 94.5 

 97.9 

 01.2 

 04.4 



07.6 

 10.6 

 13.6 

 16.4 

 19.2 



22.0 

 24.6 

 27.2 

 29.7 

 32.2 



34.6 

 36.9 

 .39.2 

 41.4 



39.4 

 44.0 



46.8 

 51 3 

 55.7 

 60.1 

 64.3 

 68.4 



72.5 

 76.5 

 80.3 

 84.1 

 87.8 



91.4 

 94.8 

 98.2 

 01.5 

 04.7 



07.9 

 10.9 

 13.9 

 16.7 

 19.5 



22.2 

 24.9 

 27.5 

 30.0 

 .32.4 



.34.8 

 37 1 

 39.4 

 41.6 



38.9 

 43.6 



47.3 

 51.8 

 56.2 

 60.5 

 64.7 

 68.8 



72.9 

 76.9 

 80.7 

 84.5 

 88.1 



91.7 

 95.2 

 98.6 

 01.9 

 05.1 



08.2 

 11.2 

 14.1 

 17.0 

 19.8 



22 

 25 

 27 

 30 

 .32 



35.0 

 37.4 

 .39.6 

 41.8 



38.5 

 43.1 



47.7 

 52.2 

 56.6 

 60.9 

 65.2 

 69.3 



73.3 

 77.3 

 81.1 

 84.8 

 88.5 



92 

 95 

 98 

 02 

 05 



08.5 

 11.5 

 14.4 

 17.3 

 20.1 



22.8 

 25.4 

 28 

 30.5 

 32.9 



35.3 

 37.6 

 39.8 

 42.0 



38.0 



42.7 



48.2 

 52.7 

 57.1 

 61.4 

 65.6 

 69.7 



73.7 

 77.6 

 81.5 

 85.2 



88.9 



92.4 

 95.9 

 99.2 

 02.5 

 05.7 



08.8 

 11.8 

 14 7 

 17.6 

 20.3 



23.0 



25 

 28 

 30 

 33 



35.5 

 37.8 

 40.0 

 42 2 



37.5 

 42.2 



48.6 

 53.1 

 57.5 

 61.8 

 66.0 

 70.1 



74.1 

 78.0 

 81.9 

 85.6 

 89.2 



92.8 

 96.2 

 99.6 

 02.8 

 06.0 



09.1 

 12.1 

 15.0 

 17.9 

 20.6 



23.3 

 25.9 

 28.5 

 31.0 

 33.4 



.35.7 

 38.0 

 40.3 

 42.4 



.37.1 

 41.7 



49.1 

 53.5 

 57.9 

 62.2 

 66.4 

 70.5 



74.5 

 78.4 

 82.2 

 86.0 

 89.6 



93.1 

 96.6 

 99.9 

 03.2 

 06.3 



09.4 

 12.4 

 15.3 

 18.1 

 20.9 



23.6 

 26.2 

 28.7 

 31.2 

 .33.6 



.36.0 

 38.3 

 40.5 

 42.7 



.9 



36.6 

 41.3 



49.5 

 54.0 

 58.4 

 62.6 

 66.8 

 70.9 



74.9 

 78.8 

 82.6 

 86.3 

 89.9 



93 

 96 

 1500 

 03 

 06 



09.7 

 12.7 

 15.6 

 18.4 

 21.2 



23.8 

 26.4 

 29.0 

 31.5 

 33.9 



36.2 

 38.5 

 40.7 

 42.9 



Table 15. — Salinity corrections. — Corrections in meters per second, to be applied to the 

 velocities in table 14 to account for salinity 



[Enter this table with the salinity and temperature of water in °C. at the depth. When the salinity is more than 35 ^/vm the correction 



is additive; when leas, it is subtractive. 1 



