The Average Ionospheric Conditions Over the Antarctic

  1. A. H. Waynick
  1. Rudolf Penndorf

Published Online: 14 MAR 2013

DOI: 10.1029/AR004p0001

Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise

Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise

How to Cite

Penndorf, R. (1965) The Average Ionospheric Conditions Over the Antarctic, in Geomagnetism and Aeronomy: Studies in the Ionosphere, Geomagnetism and Atmospheric Radio Noise (ed A. H. Waynick), American Geophysical Union, Washington, D. C.. doi: 10.1029/AR004p0001

Author Information

  1. Research and Advanced Development Division, AVCO Corporation, Wilmington, Massachusetts

Publication History

  1. Published Online: 14 MAR 2013
  2. Published Print: 1 JAN 1965

ISBN Information

Print ISBN: 9780875901046

Online ISBN: 9781118664537

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Keywords:

  • Antarctic ionosphere;
  • F2 layer;
  • Local standard time (LST);
  • Temporal variations;
  • Universal time (UT)

Summary

The regular ionic layers over Antarctica are first described in a general way; arctic data are used if necessary. The temporal variations of the D E, and F regions are investigated in detail, and relevant data for the IGY and IGC are given in various diagrams. The antarctic E region and F1 layer are under dominant solar control; numerical values for the parameters have been derived, and they agree with the results for the Arctic. The F2 layer is discussed extensively, since deviations from arctic conditions are found to exist. The maximum diurnal range in ƒ0F2 is about 1–2 Mc/s during the summer, 4–6 Mc/s during the equinoxes, and 2–7 Mc/s during the winter. Maps show the distribution for each season. The diurnal variation exhibits two anomalies, called the Weddell Sea and Ross Sea anomaly. The Ross Sea anomaly occurs throughout the year, but the Weddell Sea anomaly is found only during the summer. The geographic boundaries of each anomaly are determined.