A manual for Sofar observers

Abstract

This manual has been prepared primarily for the men who are engaged in field research problems connected with the use of Sofar, the installation of Sofar monitoring stations and the operation of Sofar systems of position determination. Although the manual is devoted primarily to a discussion of problems peculiar to Sofar, it also included discussion of several allied subjects of which it is felt the field observer must have cognizance in order to carry out intelligent and successful investigations. The subject matter included is as follows: a discussion of the principles involved in Sofar, Sofar bombs and detonators, present Sofar monitoring equipment, types of Sofar observational data, interpretation of Sofar observations, Sofar triangulation methods, oceanographic measurements, and methods of determining ship's position.