Accession Number : AD0754394

Title :   Long Range Acoustic Transmission Loss in the Northern Denmark Strait,

Corporate Author : NAVAL ORDNANCE LAB WHITE OAK MD

Personal Author(s) : Bradley,David L. ; Colvin,Gabriel M.

Report Date : 10 OCT 1972

Pagination or Media Count : 23

Abstract : Long range acoustic transmission loss measurements were made in the marginal ice zone of the northern Denmark Strait area using two aircraft. One aircraft flew prearranged tracks, dropping standard U. S. Navy explosive charges, while the second aircraft remained in the area of deployed calibrated sonobuoys, acting as a receiving platform. Received signals were recorded broadband aboard the monitoring aircraft. These broadband recordings were analyzed by filtering, squaring and integrating to obtain energy density in selected 1/3 octave bands. (Author)

Descriptors :   (*UNDERWATER SOUND, ARCTIC OCEAN), STRAITS, SEA ICE, DETECTORS, NAVAL AIRCRAFT, SONOBUOYS, POLAR REGIONS, ATTENUATION

Subject Categories : Physical and Dynamic Oceanography
      Acoustic Detection and Detectors
      Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE