SOME RELATIONSHIPS BETWEEN AURORA AND NATURAL VLF AND LF NOISE AT PLATEAU STATION, ANTARCTICA

Abstract

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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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1968
Accession Number
AD0671303

Entities

People

  • Robert B. Flint Jr.

Organizations

  • Stanford University

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Altitude
  • Antarctica
  • Bandwidth
  • Cameras
  • Continents
  • Data Reduction
  • Diurnal Variations
  • Elevation
  • Frequency
  • Intensity
  • Magnetic Fields
  • Magnetometers
  • Measurement
  • Observation
  • Peak Values
  • Photographs
  • Space Sciences

Fields of Study

  • Environmental science

Readers

  • Acoustics.
  • Polar and Arctic Studies
  • Space/Atmospheric Physics.