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Secular Decrease in Ionospheric Potential

  • R. Markson
Conference paper

Abstract

In analyzing the 120 ionospheric potential estimates obtained in my program the numbers seemed quite small compared to other estimates given in the literature. I was particularly aware of the work at NRL (Naval Research Laboratory, Washington, D.C.) by Clark (1958) since his potential gradient soundings were obtained in the same region as mine, off the eastern seaboard of the United States. My data indicated about 240 kV, and Clark estimated about 300 kV, which he corrected using the Carnegie curve to 280 kV (see Fig. 1). The vertical arrow pointing down shows these corrections for the unitary diurnal variation. Clark’s data were obtained in 1956. The bracket in the upper left corner of the figure represents the estimates of Chalmers (1954) based on the data published up to that time.

Keywords

Left Corner Vertical Arrow Exchange Layer Naval Research Laboratory Thunderstorm Activity 
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References

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    Buis, P., Atmospheric Electricity at Base “Koning Boudoin”, Expedition 1964, Exenter, Bruxelles, 1 rue de Louvain (1968).Google Scholar
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    Chalmers, J. A, Progress in Physics 17,118 (1954).Google Scholar
  3. 3.
    Clark, J. F., The fair-weather atmospheric electric potential and its gradient; in: (L. G. Smith, ed.) Recent Advances in Atmospheric Electricity (New York, 1958).Google Scholar
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    Fischer, H.-J. and R. P. Mühleisen, Variation des Ionosphärenpotentials und der Gewittertätigkeit im elfjährigen Sonnenzyklus. Meteorol. Rundsch. 25, 6 (1972).Google Scholar
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    Gish, O. H. and K. L. Sherman, Natl. Geographic Society Stratosphere Series 2, 94 (1936).Google Scholar
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    Markson, R., Airborne Atmospheric Electrical Measurements of the Variation of Ionospheric Potential and Electrical Structure in the Exchange Layer over the Ocean, these proceedings (Darmstadt, 1977).Google Scholar

Copyright information

© Dr. Dietrich Steinkopff Verlag GmbH & Co. KG., Darmstadt 1976

Authors and Affiliations

  • R. Markson
    • 1
  1. 1.Measurement Systems Lab. W-91-201Massachusetts Inst. of TechnologyCambridgeUSA

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