REPORT ON THE STATUS OF PROJECT AMOS (ACOUSTIC, METEOROLOGICAL, AND OCEANOGRAPHIC SURVEY)

• Main Authors: Marsh, H. Wysor, Jr., Schulkin, Morris
• Other Authors: NAVY UNDERWATER SOUND LAB NEW LONDON CT
• Format: Text
• Language: English
• Published: 1967
• Subjects: Physical and Dynamic Oceanography; Acoustic Detection and Detectors; Acoustics; *UNDERWATER SOUND; PROPAGATION; MEASUREMENT; OCEANOGRAPHIC DATA; SOUND TRANSMISSION; TABLES(DATA); ABSORPTION; ATLANTIC OCEAN; REFLECTIVITY; MARINE METEOROLOGY; DEEP WATER; SONAR SIGNALS; OCEAN BOTTOM; ACOUSTIC PROPERTIES; RAYLEIGH WAVES; VERY LOW FREQUENCY; SONAR PULSES; AMOS PROJECT; NORTH ATLANTIC OCEAN; MOST PROJECT-2; North Atlantic
• Online Access: http://www.dtic.mil/docs/citations/AD0815946; http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0815946

This report is an UNCLASSIFIED edition of USL Report No. 255 (confidential) dated 21 March 1955. The Project AMOS work which was carried out through the period 1 January 1953-31 December 1954 is summarized. This is a final report of the AMOS deep-water acoustic measurements, which began in June 1949. During the period covered by this report, the Underwater Sound Laboratory carried out a number of studies and analyses of AMOS data; these are included herein as Studies A through D and H through J. The major study is an analysis of sound transmission at frequencies between 2 and 25 kc based on all the AMOS data and on other data available in the literature. Propagation-loss prediction charts based on this analysis are presented as a function of certain environmental parameters. An error study of the propagation analysis is presented next. Studies of AMOS low-frequency noisemaker data analysis, ray tracing in the ocean, and bottom reflection in deep water are also presented, and a summary of Cruise TWELVE, which was completed early in this period, is included. (Author) Classified edition of Rept. no. USL-255, dated 21 Mar 55, AD-120 995.