The Correction of Infrasound Signals for Upper Atmospheric Winds

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Infrasound waves propagate in the atmosphere by a well known mechanism produced by refraction of the waves, return to earth, and reflection at the surface into the atmosphere for subsequent bounces. In this instance three rays are returned to earth from a region centered at about 50 kilometers in altitude and two from a region near 110 kilometers in altitude. The control of the wave refraction is largely dominated by the temperature-height profile and inversions; however, a major influence is also produced by the atmospheric wind profile. It obviously can be expected that infrasonic signal amplitudes will be greatly influenced … continued below

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15 pages

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Mutschlecner, J. P. & Whitaker, R. W. January 1, 1990.

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Description

Infrasound waves propagate in the atmosphere by a well known mechanism produced by refraction of the waves, return to earth, and reflection at the surface into the atmosphere for subsequent bounces. In this instance three rays are returned to earth from a region centered at about 50 kilometers in altitude and two from a region near 110 kilometers in altitude. The control of the wave refraction is largely dominated by the temperature-height profile and inversions; however, a major influence is also produced by the atmospheric wind profile. It obviously can be expected that infrasonic signal amplitudes will be greatly influenced by the winds in the atmosphere. The seasonal variation of the high altitude atmospheric winds is well documented. The very strong seasonal variation has the ability to exert a major seasonal influence on infrasonic signals. It is our purpose to obtain a method for the correction of this effect.

Physical Description

15 pages

Notes

NTIS, PC A03/MF A01 - OSTI; GPO Dep.

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  • 4. international symposium on long range sound propagation at NASA Langley Research Center, Hampton, VA (USA), 15-17 May 1990

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  • Other: DE90013177
  • Report No.: LA-UR-90-1997
  • Report No.: CONF-9005236--2
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 6812452
  • Archival Resource Key: ark:/67531/metadc1184525

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1990

Added to The UNT Digital Library

  • July 2, 2018, 10:52 p.m.

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  • May 2, 2019, 4:08 p.m.

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Mutschlecner, J. P. & Whitaker, R. W. The Correction of Infrasound Signals for Upper Atmospheric Winds, article, January 1, 1990; New Mexico. (https://digital.library.unt.edu/ark:/67531/metadc1184525/: accessed March 28, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.

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