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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Bibliographic Details
Main Author: Flint, Jr, Robert B
Other Authors: STANFORD UNIV CA STANFORD ELECTRONICS LABS
Format: Text
Language:English
Published: 1968
Subjects:
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)
Antarctic
Austral
Antarc*
Antarctica
Online Access:http://www.dtic.mil/docs/citations/AD0671303
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0671303
Description
Summary: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.

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