A TWO-COMPONENT ARCTIC AMBIENT NOISE MODEL

PDF

Authors
  1. Greening, M.V.
Corporate Authors
Defence Research Establishment Pacific, Victoria BC (CAN);JASCO Research Ltd, Sidney BC (CAN)
Abstract
Short term Arctic ambient noise spectra over the frequency band 2 - 200 Hz are presented along with a two component noise model capable of reproducing these spectra. The model is based on the measured source spectrum and the spatial, temporal and source level distributions of both active pressure ridging and ice cracking. Modelled ambient noise levels are determined by summing the input energy of the distributions of ice cracking and pressure ridging events and removing the propagation loss. Both modelled and measured spectra show that ice cracking may dominate the spring-time ambient noise to frequencies as low 40 Hz.
Report Number
DREP-CR-92-12 — Contractor Report
Date of publication
15 Mar 1992
Number of Pages
49
DSTKIM No
92-01558
CANDIS No
104448
Format(s):
Document Image stored on Optical Disk;Originator's fiche received by DSIS

Permanent link

Document 1 of 1

Date modified: