COMMENTS CONCERNING DETERMINATION OF ABSOLUTE SOUND SPEEDS IN DISTILLED AND SEAWATER AND PACIFIC SOFAR SPEEDS

The preponderance of recent determinations of distilled water sound speed indicates that the Wilson (for the range 0° 30°C) and Greenspan Tschiegg sound speed equations are too high by 65 and 40 cm/sec, respectively. Similarly, the Wilson seawater sound speed equation gives Pacific temperate latitude Sofar speeds 23 m/sec higher than values based on explosion travel times. Adjusted distilled and seawater equations are proposed in order to achieve a common standard for all measurements at sea. © 1969, Acoustical Society of America. All rights reserved.