Short Term Periodicities in Ionospheric Total Electron Content.

Abstract

Short-term variability of the ionospheric F-region has been studied using total electron content (TEC) data from several North American sites. Specific attention was given to lunar-induced periodicities in TEC and to a general treatment of changes in TEC associated with variations in the height of the F-region (hmF2). In both cases, simple analytical expressions were derived from statistical analysis of the large TEC and hmF2 data bases. These relations are appropriate for updates to model predictions of average conditions during daytime hours. A study of the 'geomagnetic ordering' of TEC variability showed that real-time predictive methods can reduce up to 50% of the normal variability. A preliminary analysis of solar wind sector boundary effects suggested that sector components may order some F-region variability, though the specific relations between these effects and the geomagnetic ordering results remain to be clarified. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1980
Accession Number
ADA084756

Entities

People

  • Kenneth H. Schatten
  • Michael Mendillo

Organizations

  • Boston University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Astronomy
  • Boundaries
  • Databases
  • Electrons
  • Flight
  • Frequency
  • Geophysics
  • Harmonics
  • Information Science
  • Ionosphere
  • Magnetic Disturbances
  • Periodic Variations
  • Solar Activity
  • Solar Wind
  • Space Flight
  • Statistical Analysis

Readers

  • Regression Analysis.
  • Space/Atmospheric Physics.

Technology Areas

  • Microelectronics
  • Space