Environmental Correlates of Pack Ice Noise

Abstract

Low-frequency ambient noise under pack ice of the central Arctic Ocean has long-term variations(periods greater than 1 h)which correlate highly with composite measures of stress applied to the ice by wind, current, and drift. These composites are the horizontal ice stress and the stress moment, and are derived from meteorological and oceanographic data observed simultaneously with the noise. Atmospheric cooling, a known high correlate of midfrequency noise under the ice, is not important at low frequencies. Keywords: Underice ambient noise; Meteorological data; Ocean currents. Reprints.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1986
Accession Number
ADA196336

Entities

People

  • Ira Dyer
  • Nicholas C. Makris

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Temperature
  • Ambient Noise
  • Arctic Ocean
  • Boundary Layer
  • Cross Correlation
  • Data Science
  • Frequency
  • Information Science
  • Observation
  • Oceans
  • Pressure Gradients
  • Sea Ice
  • Sea Water
  • Shear Stresses
  • Stresses
  • Wind
  • Wind Shear

Fields of Study

  • Environmental science

Readers

  • Acoustics.
  • Mechanical Engineering/Mechanics of Materials.
  • Polar and Arctic Studies