Antarctic Atmospheric Infrasound.
In order to monitor atmospheric infrasonic waves in the passband from 0.1 to 0.01 Hz a digital infrasonic detection system was installed in Antarctica on the Ross Ice shelf near McMurdo Station on McMurdo Sound. An array of seven infrasonic microphones subtending an area of about 35 sg km was operat...
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ftdtic:ADA176804 2023-05-15T14:02:24+02:00 Antarctic Atmospheric Infrasound. Wilson,Charles R McKibben,Bruce N ALASKA UNIV FAIRBANKS GEOPHYSICAL INST 1986-11 text/html http://www.dtic.mil/docs/citations/ADA176804 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA176804 en eng http://www.dtic.mil/docs/citations/ADA176804 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Meteorology *INFRASONIC RADIATION DIGITAL SYSTEMS METEORS DETECTORS REAL TIME MOTION WAVE PROPAGATION SIGNALS AURORAE ONLINE SYSTEMS SUPERSONIC CHARACTERISTICS TROPOSPHERE MICROPHONES ANALOG SIGNALS TRAVELING WAVES VOLCANOES OBSERVATORIES ELECTROJETS WUAFOSR2309A1 PE61102F Text 1986 ftdtic 2016-02-21T02:59:05Z In order to monitor atmospheric infrasonic waves in the passband from 0.1 to 0.01 Hz a digital infrasonic detection system was installed in Antarctica on the Ross Ice shelf near McMurdo Station on McMurdo Sound. An array of seven infrasonic microphones subtending an area of about 35 sg km was operated in Windless Bight. The analog microphone data was telemetered to McMurdo station where the infrasonic date were digitized and subjected to on-line real-time analysis to detect traveling infrasonic waves with periods from 10 to 100 seconds. During the period of operation of the Antartic infrasonic observatory, hundreds of infrasonic signals were detected in association with many natural sources such as the aurora australis, marine storm sea-air interactions, volcanic eruptions, mountain generated lee-wave effects, large meteors and auroral electrojet supersonic motions. Text Antarc* Antarctic Antarctica antartic* aurora australis Ice Shelf McMurdo Sound Ross Ice Shelf Defense Technical Information Center: DTIC Technical Reports database Antarctic McMurdo Sound McMurdo Station ENVELOPE(166.667,166.667,-77.850,-77.850) Ross Ice Shelf Windless Bight ENVELOPE(167.667,167.667,-77.700,-77.700) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Meteorology *INFRASONIC RADIATION DIGITAL SYSTEMS METEORS DETECTORS REAL TIME MOTION WAVE PROPAGATION SIGNALS AURORAE ONLINE SYSTEMS SUPERSONIC CHARACTERISTICS TROPOSPHERE MICROPHONES ANALOG SIGNALS TRAVELING WAVES VOLCANOES OBSERVATORIES ELECTROJETS WUAFOSR2309A1 PE61102F |
spellingShingle |
Meteorology *INFRASONIC RADIATION DIGITAL SYSTEMS METEORS DETECTORS REAL TIME MOTION WAVE PROPAGATION SIGNALS AURORAE ONLINE SYSTEMS SUPERSONIC CHARACTERISTICS TROPOSPHERE MICROPHONES ANALOG SIGNALS TRAVELING WAVES VOLCANOES OBSERVATORIES ELECTROJETS WUAFOSR2309A1 PE61102F Wilson,Charles R McKibben,Bruce N Antarctic Atmospheric Infrasound. |
topic_facet |
Meteorology *INFRASONIC RADIATION DIGITAL SYSTEMS METEORS DETECTORS REAL TIME MOTION WAVE PROPAGATION SIGNALS AURORAE ONLINE SYSTEMS SUPERSONIC CHARACTERISTICS TROPOSPHERE MICROPHONES ANALOG SIGNALS TRAVELING WAVES VOLCANOES OBSERVATORIES ELECTROJETS WUAFOSR2309A1 PE61102F |
description |
In order to monitor atmospheric infrasonic waves in the passband from 0.1 to 0.01 Hz a digital infrasonic detection system was installed in Antarctica on the Ross Ice shelf near McMurdo Station on McMurdo Sound. An array of seven infrasonic microphones subtending an area of about 35 sg km was operated in Windless Bight. The analog microphone data was telemetered to McMurdo station where the infrasonic date were digitized and subjected to on-line real-time analysis to detect traveling infrasonic waves with periods from 10 to 100 seconds. During the period of operation of the Antartic infrasonic observatory, hundreds of infrasonic signals were detected in association with many natural sources such as the aurora australis, marine storm sea-air interactions, volcanic eruptions, mountain generated lee-wave effects, large meteors and auroral electrojet supersonic motions. |
author2 |
ALASKA UNIV FAIRBANKS GEOPHYSICAL INST |
format |
Text |
author |
Wilson,Charles R McKibben,Bruce N |
author_facet |
Wilson,Charles R McKibben,Bruce N |
author_sort |
Wilson,Charles R |
title |
Antarctic Atmospheric Infrasound. |
title_short |
Antarctic Atmospheric Infrasound. |
title_full |
Antarctic Atmospheric Infrasound. |
title_fullStr |
Antarctic Atmospheric Infrasound. |
title_full_unstemmed |
Antarctic Atmospheric Infrasound. |
title_sort |
antarctic atmospheric infrasound. |
publishDate |
1986 |
url |
http://www.dtic.mil/docs/citations/ADA176804 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA176804 |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(167.667,167.667,-77.700,-77.700) |
geographic |
Antarctic McMurdo Sound McMurdo Station Ross Ice Shelf Windless Bight |
geographic_facet |
Antarctic McMurdo Sound McMurdo Station Ross Ice Shelf Windless Bight |
genre |
Antarc* Antarctic Antarctica antartic* aurora australis Ice Shelf McMurdo Sound Ross Ice Shelf |
genre_facet |
Antarc* Antarctic Antarctica antartic* aurora australis Ice Shelf McMurdo Sound Ross Ice Shelf |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA176804 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766272677319802880 |