SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA
Various relationships between aurora as observed in all-sky photographs and natural noise at frequencies of 1.5, 8, 50, and 110 kHz are found from data taken at Plateau Station, Antarctica, during the austral winter of 1966. The investigation is carried out in two parts: diurnal variations in occurr...
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ftdtic:AD0671303 2023-05-15T13:43:48+02:00 SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA Flint, Jr, Robert B STANFORD UNIV CA STANFORD ELECTRONICS LABS 1968-02 text/html http://www.dtic.mil/docs/citations/AD0671303 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0671303 en eng http://www.dtic.mil/docs/citations/AD0671303 Approved for public release; distribution is unlimited. DTIC AND NTIS Atmospheric Physics Radio Communications *AURORAE ABSORPTION AERIAL PHOTOGRAPHS ANTARCTIC REGIONS DIURNAL VARIATIONS ELECTROMAGNETIC RADIATION EMISSIVITY INTENSITY LOW FREQUENCY NOISE RADIO WAVES RESOLUTION VERY LOW FREQUENCY GRAPHS(CHARTS) Text 1968 ftdtic 2017-06-18T14:47:35Z Various relationships between aurora as observed in all-sky photographs and natural noise at frequencies of 1.5, 8, 50, and 110 kHz are found from data taken at Plateau Station, Antarctica, during the austral winter of 1966. The investigation is carried out in two parts: diurnal variations in occurrence are found for aurora and noise, and a minute-by-minute examination of relationships is made for a one-week period. Diurnal occurrence of noise at 110 kHz peaks before magnetic midnight at about the same time as a peak occurs in the more familiar diurnal curves of occurrence of noise at 8 kHz and of aurora. Examples are shown of several events in which associations between variations in noise and variations in auroral elevation, intensity, form, and rate of change can be found from detailed comparison of the data. The majority of all noise changes during the week is found to coincide with changes in the aurora. Text Antarc* Antarctic Antarctica Defense Technical Information Center: DTIC Technical Reports database Antarctic Austral |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Atmospheric Physics Radio Communications *AURORAE ABSORPTION AERIAL PHOTOGRAPHS ANTARCTIC REGIONS DIURNAL VARIATIONS ELECTROMAGNETIC RADIATION EMISSIVITY INTENSITY LOW FREQUENCY NOISE RADIO WAVES RESOLUTION VERY LOW FREQUENCY GRAPHS(CHARTS) |
spellingShingle |
Atmospheric Physics Radio Communications *AURORAE ABSORPTION AERIAL PHOTOGRAPHS ANTARCTIC REGIONS DIURNAL VARIATIONS ELECTROMAGNETIC RADIATION EMISSIVITY INTENSITY LOW FREQUENCY NOISE RADIO WAVES RESOLUTION VERY LOW FREQUENCY GRAPHS(CHARTS) Flint, Jr, Robert B SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
topic_facet |
Atmospheric Physics Radio Communications *AURORAE ABSORPTION AERIAL PHOTOGRAPHS ANTARCTIC REGIONS DIURNAL VARIATIONS ELECTROMAGNETIC RADIATION EMISSIVITY INTENSITY LOW FREQUENCY NOISE RADIO WAVES RESOLUTION VERY LOW FREQUENCY GRAPHS(CHARTS) |
description |
Various relationships between aurora as observed in all-sky photographs and natural noise at frequencies of 1.5, 8, 50, and 110 kHz are found from data taken at Plateau Station, Antarctica, during the austral winter of 1966. The investigation is carried out in two parts: diurnal variations in occurrence are found for aurora and noise, and a minute-by-minute examination of relationships is made for a one-week period. Diurnal occurrence of noise at 110 kHz peaks before magnetic midnight at about the same time as a peak occurs in the more familiar diurnal curves of occurrence of noise at 8 kHz and of aurora. Examples are shown of several events in which associations between variations in noise and variations in auroral elevation, intensity, form, and rate of change can be found from detailed comparison of the data. The majority of all noise changes during the week is found to coincide with changes in the aurora. |
author2 |
STANFORD UNIV CA STANFORD ELECTRONICS LABS |
format |
Text |
author |
Flint, Jr, Robert B |
author_facet |
Flint, Jr, Robert B |
author_sort |
Flint, Jr, Robert B |
title |
SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
title_short |
SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
title_full |
SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
title_fullStr |
SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
title_full_unstemmed |
SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA |
title_sort |
some relationships between aurora and natural vlf and lf noise at plateau station, antarctica |
publishDate |
1968 |
url |
http://www.dtic.mil/docs/citations/AD0671303 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0671303 |
geographic |
Antarctic Austral |
geographic_facet |
Antarctic Austral |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/AD0671303 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766193462370107392 |