Low-Frequency Waves and Irregularities in the Ionosphere

1. Front Matter

   Pages i-vii

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2. Introductory Lecture on Ion Waves

   • Dieter Pfirsch

   Pages 1-11

3. General Features and Satellite Observations of Magnetoionic and Magnetohydrodynamic Waves in the Outer Ionosphere

   • H. Kikuchi

   Pages 12-60

4. Effects of Ion-Atom Collisions on the Propagation and Damping of Ion-Acoustic Waves

   • H. K. Andersen, N. D’angelo, V. O. Jensen, P. Michelsen, P. Nielsen

   Pages 61-68

5. Effects of Field-Aligned Currents on the Structure of the Ionosphere

   • L. P. Block, C.-G. Fälthammar

   Pages 69-77

6. Effects of Ion-Neutral Collisions on Ion-Acoustic Instabilities in the Auroral Ionosphere

   • N. D’angelo

   Pages 78-86

7. Role of the Universal Instability in Auroral Phenomena

   • N. D’angelo

   Pages 87-93

8. Whistlers-Use for Determination of Composition and Temperature

   • Stanley D. Shawhan

   Pages 94-109

9. Observations of Ionospheric Very-Low-Frequency Radio Noise

   • Stanley D. Shawhan

   Pages 110-110

10. VLF and LF Emissions at Auroral Latitudes

    • T. Stockflet Jørgensen

    Pages 111-119

11. Diagnostics of the Parameters of the Magnetosphere and of the Interplanetary Space by Means of Micropulsations

    • V. A. Troitskaya, A. V. Gul’elmi

    Pages 120-136

12. Effects of Ionospheric Motions and Irregularities on HF Radio Propagation

    • T. M. Georges

    Pages 137-151

13. Some Characteristics of Non-Two-Stream Irregularities in the Equatorial Electrojet

    • Ben B. Balsley

    Pages 152-172

14. Low Frequency Waves and Irregularities in the Auroral Ionosphere as Determined by Radar Measurements

    • Walter G. Chesnut

    Pages 173-191

15. Scintillations of Satellite Signals

    • L. Liszka

    Pages 192-206

16. Inhomogeneities in the Ionosphere Measured by Radio Signals from the Beacon Satellite Explorer-22, Emphasizing Satellite Scintillations

    • G. K. Hartmann

    Pages 207-215

17. Observed Low Frequency Fluctuations in Space

    • Norman F. Ness

    Pages 216-217

18. Barium Release Experiments Near the Magnetic Equator at Thumba, India

    • E. Rieger

    Pages 218-218

During the last week of September 1968, ESRIN (the European Space Research Institute) held the ESRIN-ESLAB Symposium on 'Low-Frequency Waves and Irregularities in the Ionosphere' in Frascati, near Rome. The symposium was attended by about 60 participants, including speakers from most of the ESRO member states, the U.S.A., the U.S.S.R., and Peru. The main topics covered were: (a) observations of ionospheric irregularities by radar scattering, (b) scintillations of satellite signals, (c) geomagnetic micropulsations, and (d) whistlers. Both theoretical and observational aspects were treated. In addition, laboratory results on low-frequency waves in plasmas were discussed, emphasis being given to their possible relevance to low-frequency ionospheric phenomena. Finally, a brief presentation (not included in these proceedings) of the ESRO rocket and satellite program was given by Dr. Pedersen of ESLAB. The symposium provided an exchange of information among workers in closely related fields. It was also valuable in bringing together people whose experience is predominantly in ionospheric observations with others whose field of interest is mainly in plasma physics (theoretical or laboratory) - a combination that seemed particularly appropriate to ESRIN's program and functions.

• Europe
• information
• ionosphere
• physics
• plasma physics
• radar
• research
• satellite
• scattering
• signal
• space
• waves

• European Space Research Institute, Frascati (Rome), Italy

  N. D’angelo

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