Seasonal Variations of Globally Measured ELF/VLF Radio Noise

Abstract

THE SPACE, TELECOMMUNICATIONS AND RADIOSCIENCE (STAR) LABORATORY AT STANFORD HAS BEEN CONDUCTING A GLOBAL SURVEY OF EXTREMELY LOW FREQUENCY (ELF) AND VERY LOW FREQUENCY (VLF) RADIO NOISE SINCE FEBRUARY 1985. EIGHT MEASUREMENT STATIONS AROUND THE WORLD RECORD THE INSTANTANEOUS NOISE AMPLITUDE IN EACH OF SIXTEEN NARROW FREQUENCY BANDS IN THE 10 Hz - 32 kHz FREQUENCY RANGE, AND THIS REPORT PRESENTS CALCULATIONS OF THE MONTHLY AVERAGES FOR THE FOUR STATIONS WITH THE LONGEST TIMES OF OPERATION. THE DATA PRESENTED HERE SUPPLEMENT THOSE IN A PAPER IN RADIO SCIENCE BY THE SAME AUTHORS; HOWEVER, THIS REPORT INCLUDES A MUCH MORE DETAILED AND EXTENSIVE PRESENTATION OF THE SEASONAL VARIATION DATA THAN DOES THE PUBLISHED PAPER. SPECIFICALLY, THIS REPORT CONTAINS: (1) SEASONAL VARIATION DATA FOR SPECIFIC DIURNAL TIME PERIODS, AND (2) THE SEASONAL VARIATIONS FOR INDIVIDUAL YEARS.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
ADA358414

Entities

People

  • Antony Fraser-Smith
  • D. A. Chrissan

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Bandwidth
  • Climate Change
  • Communication Systems
  • Data Analysis
  • Frequency
  • Frequency Bands
  • High Latitudes
  • Information Science
  • Magnetic Fields
  • Measurement
  • Military Research
  • New Zealand
  • Noise (Radio)
  • Numbers
  • Radio Navigation Systems
  • Seasonal Variations
  • Security

Readers

  • Acoustics.
  • Space/Atmospheric Physics.
  • Technical Research and Report Writing.

Technology Areas

  • Space
  • Space - Satellites