Aperiodic and wave disturbances in the ionosphere: the results of vertical sounding»

MONOGRAPH The monograph presents the study results of aperiodic and quasi-periodic wave perturbations in the ionosphere during unique phenomena in geospace: partial solar eclipses, the fall of the Chelyabinsk cosmic body and during the operation of a powerful radio source – the heating stand «Sura». Experimental data obtained by the method of remote sensing are analyzed. Designed for scientists in the field of ionosphere physics, radio physics, radar, as well as for lecturers, graduate and Ph.D. students. Recommended for printing by the Scientific Council of Institute of Ionosphere (Protocol № 4 of June 4, 2021) ══════════════════════════════════ REVIEWERS:Feliks Kivva - D.Sc., Prof., Head of the Department of Radiowave Propagation in Natural Media, O.Ya. Usikov Institute for Radiophysics and Electronics of the National Academy of Sciences of UkraineVolodymyr Dolzhykov - D.Sc., Full Prof., Professor of the Department of Computer Radio Engineering and Technical Information Security Systems, Kharkiv National University of Radio ElectronicsYuriy Sumaruk - D.Sc., Senior Scientist, Leading Researcher of the Department of Geomagnetism, Institute of Geophysics by S.I. Subbotin name of National Academy of Sciences of Ukraine ══════════════════════════════════ CONTENTS: ABBREVIATIONS INTRODUCTION Chapter 1. IONOSPHERE: BASIC MORPHOLOGY AND METHODS OF DIAGNOSTIC 1.1. Remote Sensing1.2. Ionosondes1.3. Morphology of Quiet Ionosphere at Mid-latitudes1.4. Sources of Disturbed Ionosphere1.5. The Results of the Study of Disturbances in the Middle Ionosphere  1.5.1. Effects of Ionospferic Storms  1.5.2. Effects of solar eclipses  1.5.3. Effects of the Chelyabinsk Meteor  1.5.4. Effects of Powerful Radio Transmission  1.5.5. Effects of Rockets Launches and Flights1.6. Investigation of Aperiodic and Wave Disturbances in the Ionosphere: Instruments and Methods1.6.1. Ionosonde1.6.2. Methods of Analysis Chapter 2. THE MIDDLE IONOSPHERE OF UKRAINIAN REGION UNDER QUIET CONDITIONS 2.1. Space Weather Conditions2.2. Regular Variations in the Electron Density2.3. Wave Disturbances of the Electron Density2.4. The Results of Spectral Analysis   2.4.1. Spectral Composition of Diurnal-Seasonal Variations of Absolute Electron Density Disturbances   2.4.2. Spectral Composition of Diurnal-Seasonal Variations of Relative Electron Density Disturbances2.5. Discussion Chapter 3. EFFECTS OF SOLAR ECLIPSES IN THE MIDDLE IONOSPHERE 3.1. General Information About the Solar Eclipse on January 4, 2011   3.1.1. Brief Information About the Eclipse   3.1.2. Space Weather Conditions3.2. Variations in Ionosphere Parameters During the Solar Eclipse on January 4, 2011   3.2.1. Temporal Variations in Critical Frequencies   3.2.2. Temporal Variations in Effective Heights   3.2.3. Temporal Variations in Reflection Height   3.2.4. Temporal Variations of the Electron Density at the Maximum of Ionization3.3. Wave Disturbances3.4. Discussion of Observation Results   3.4.1. Variations in Ionogram Parameters   3.4.2. Diffuse Reflections   3.4.3. Variations in Electron Density3.5. General Information About the Solar Eclipse on March 20, 2015.3.6. Ionospheric Parameters Variations during the Solar Eclipse on March 20, 2015 over Europe   3.6.1. Temporal Variations in Critical Frequency foF2   3.6.2. Temporal Variations in Reflection Height3.7. Wave Perturbations during the Solar Eclipse on March 20, 2015 over Europe   3.7.1. Temporal Variations of Critical Frequency Changes   3.7.2. Temporal Variations in Reflection Height Changes   3.7.3. Results of System Spectral Analysis3.8. Discussion Chapter 4. EFFECTS OF THE CHELYABINSK METEOR IN THE MIDDLE-IONOSPHERE 4.1. General Information4.2. Instruments and Methods of Research4.3. Temporal Variations in Critical Frequency4.4. The Results of Spectral Analysis4.5. Discussion on the Observation Results Chapter 5. APERIODIC LARGE-SCALE DISTURBANCES IN THE IONOSPHERE ACCOMPANYING THE MODIFICATION OF THE IONOSPHERIC PLASMA BY INTENSE RADIO WAVES 5.1. General Information5.2. Space Weather Conditions5.3. Instruments and Methods of Research   5.3.1. “Sura” Heating Stand   5.3.2. Observation Means5.4. Observational Results   5.4.1. Examples of Ionograms    5.4.2. Variations in fmin on August 27, 2012    5.4.3. Variations in fmin on August 28, 2012    5.4.4. Variations in fmin on August 29, 2012    5.4.5. Variations in fmin on August 30, 2012 5.5. Discussion of Observations Result    5.5.1. Variations in fmin in Vasilsursk    5.5.2. Variations in fmin in Troitsk    5.5.3. Variations in fmin in Gaidary    5.5.4. Variations of fmin in Pruhonice   5.5.5. Results of Calculations   5.5.6. Estimation of Electron Flowes5.6. Experiment of 2013   5.6.1. Methods of Analysis   5.6.2. Space Weather Conditions   5.6.3. Temporal Variations in the Critical Frequency Near Gaidary Village   5.6.4. Temporal Variations in the Critical Frequency Near Troitsk   5.6.5. Temporal Variations in the Critical Frequency Near Pruhonice   5.6.6. Occurrence Frequency of foF2 Bursts   5.6.7. Time Delay and Duration of foF2 Bursts   5.6.8. Amplitude of Critical Frequency and Electron Density Bursts   5.6.9. Arguments in Favor of the Transmission Effects in the Ionosphere5.7. Dependence on the Mode of the Heating Stand Operation   5.7.1. The Nature of the Disturbances   5.7.2. The mechanism of Aperiodic Disturbances REFERENCES ══════════════════════════════════ Видавець: Primedia eLaunch LLC, 2021Виготовлювач: Друкарня ФОП Гуляєва В.М., 2021 ISBN 978-1-63944-406-9