Atmospheric sound propagation
The propagation of sound waves at infrasonic frequencies (oscillation periods 1.0 - 1000 seconds) in the atmosphere is being studied by a network of seven stations separated geographically by distances of the order of thousands of kilometers. The stations measure the following characteristics of inf...
Main Author: | |
---|---|
Format: | Other/Unknown Material |
Language: | unknown |
Published: |
1969
|
Subjects: | |
Online Access: | http://hdl.handle.net/2060/19720017735 |
id |
ftnasantrs:oai:casi.ntrs.nasa.gov:19720017735 |
---|---|
record_format |
openpolar |
spelling |
ftnasantrs:oai:casi.ntrs.nasa.gov:19720017735 2023-05-15T15:33:51+02:00 Atmospheric sound propagation Cook, R. K. Unclassified, Unlimited, Publicly available Jan 1, 1969 application/pdf http://hdl.handle.net/2060/19720017735 unknown Document ID: 19720017735 Accession ID: 72N25385 http://hdl.handle.net/2060/19720017735 No Copyright CASI GEOPHYSICS NAS-NRC Atmospheric Exploration by Remote Probes, Vol. 2; p 633-669 1969 ftnasantrs 2016-06-11T22:58:56Z The propagation of sound waves at infrasonic frequencies (oscillation periods 1.0 - 1000 seconds) in the atmosphere is being studied by a network of seven stations separated geographically by distances of the order of thousands of kilometers. The stations measure the following characteristics of infrasonic waves: (1) the amplitude and waveform of the incident sound pressure, (2) the direction of propagation of the wave, (3) the horizontal phase velocity, and (4) the distribution of sound wave energy at various frequencies of oscillation. Some infrasonic sources which were identified and studied include the aurora borealis, tornadoes, volcanos, gravity waves on the oceans, earthquakes, and atmospheric instability waves caused by winds at the tropopause. Waves of unknown origin seem to radiate from several geographical locations, including one in the Argentine. Other/Unknown Material aurora borealis NASA Technical Reports Server (NTRS) Argentine |
institution |
Open Polar |
collection |
NASA Technical Reports Server (NTRS) |
op_collection_id |
ftnasantrs |
language |
unknown |
topic |
GEOPHYSICS |
spellingShingle |
GEOPHYSICS Cook, R. K. Atmospheric sound propagation |
topic_facet |
GEOPHYSICS |
description |
The propagation of sound waves at infrasonic frequencies (oscillation periods 1.0 - 1000 seconds) in the atmosphere is being studied by a network of seven stations separated geographically by distances of the order of thousands of kilometers. The stations measure the following characteristics of infrasonic waves: (1) the amplitude and waveform of the incident sound pressure, (2) the direction of propagation of the wave, (3) the horizontal phase velocity, and (4) the distribution of sound wave energy at various frequencies of oscillation. Some infrasonic sources which were identified and studied include the aurora borealis, tornadoes, volcanos, gravity waves on the oceans, earthquakes, and atmospheric instability waves caused by winds at the tropopause. Waves of unknown origin seem to radiate from several geographical locations, including one in the Argentine. |
format |
Other/Unknown Material |
author |
Cook, R. K. |
author_facet |
Cook, R. K. |
author_sort |
Cook, R. K. |
title |
Atmospheric sound propagation |
title_short |
Atmospheric sound propagation |
title_full |
Atmospheric sound propagation |
title_fullStr |
Atmospheric sound propagation |
title_full_unstemmed |
Atmospheric sound propagation |
title_sort |
atmospheric sound propagation |
publishDate |
1969 |
url |
http://hdl.handle.net/2060/19720017735 |
op_coverage |
Unclassified, Unlimited, Publicly available |
geographic |
Argentine |
geographic_facet |
Argentine |
genre |
aurora borealis |
genre_facet |
aurora borealis |
op_source |
CASI |
op_relation |
Document ID: 19720017735 Accession ID: 72N25385 http://hdl.handle.net/2060/19720017735 |
op_rights |
No Copyright |
_version_ |
1766364445828710400 |