This book is a multi-author treatise on the most outstanding research problems in the field of the aeronomy of the Earth's atmosphere and ionosphere, encompassing the science covered by Division II of the International Association of Geomagnetism and Aeronomy (IAGA). It contains several review articles and detailed papers by leading scientists in the field. The book is organized in five parts: 1) Mesosphere-Lower Thermosphere Dynamics and Chemistry; 2) Vertical Coupling by Upward Propagating Waves; 3) Ionospheric Electrodynamics and Structuring; 4) Thermosphere- Ionosphere Coupling, Dynamics and Trends and 5) Ionosphere-Thermosphere Disturbances and Modeling. The book consolidates the progress achieved in the field in recent years and it serves as a useful reference for graduate students as well as experienced researchers.
Part I Mesosphere-Lower Thermosphere Dynamics and Chemistry 1. Chemical-Dynamical Coupling in the Mesosphere and Lower Thermosphere 2. Atmospheric Tides and Planetary Waves: Recent Progress Based on SABER/TIMED Temperature Measurements (2002-2007) 3. Dynamical Coupling Between Different Regions of Equatorial Atmosphere 4. Microphysical Properties of Mesospheric Aerosols: An Overview of In Situ-Results from the ECOMA Project 5. SABER Observations of Daytime Atomic Oxygen and Ozone Variability in the Mesosphere 6. In Situ Measurements of Small-Scale Structures in Neutrals and Charged Aerosols 7. High-Latitude Gravity Wave Measurements in Noctilucent Clouds and Polar Mesospheric Clouds Part II Vertical Coupling by Upward Propagating Waves 8. Gravity Wave Influences in the Thermosphere and Ionosphere: Observations and Recent Modeling 9. Neutral Winds and Densities at the Bottomside of the F Layer from Primary and Secondary Gravity Waves from Deep Convection 10.The Acoustic Gravity Wave Induced Disturbances in the Equatorial Ionosphere 11. Mesosphere-Ionosphere Coupling Processes Observed in the F Layer Bottom-Side Oscillation 12. A Case Study of Tidal and Planetary Wave Coupling in the Equatorial Atmosphere-Ionosphere System Over India: Preliminary Results Part III Ionospheric Electrodynamics and Structuring 13. Electrodynamics of Ionosphere-Thermosphere Coupling 14. Daytime Vertical ExB Drift Velocities Inferred from Ground-Based Equatorial Magnetometer Observations 15. Three-Dimensional Modeling of Equatorial Spread F 16. Coupling Processes in the Equatorial Spread F/Plasma Bubble Irregularity Development 17. Influences on the Development of Equatorial Plasma Bubbles: Insights from a Long-Term Optical Dataset 18. A Review of the Recent Advances in the Investigation of Equatorial Spread F and Space Weather Effects over Indian Sector Using Optical and Other Techniques 19. Radar and Optical Observations of Irregular Midlatitude Sporadic E Layers Beneath MSTIDs 20. Instabilities in the Midlatitude Ionosphere in Terms of E-F Coupling 21. Statistical Study of Medium-Scale Traveling Ionospheric Disturbances Observed with a GPS Receiver Network in Japan Part IV Thermosphere-Ionosphere Coupling, Dynamics and Trends 22. New Aspects of the Coupling Between Thermosphere and Ionosphere, with Special regards to CHAMP Mission Results 23. Equatorial Ionization Anomaly: The Role of Thermospheric Winds and the Effects of the Geomagnetic Field Secular Variation 24. Characteristics of Temperature and Density Structures in the Equatorial Thermosphere Simulated by a Whole Atmosphere GCM 25. Longitudinal Variations of the Thermospheric Zonal Wind Induced by Nonmigrating Tides as Observed by CHAMP 26. Causal Link of Longitudinal Plasma Density Structure to Vertical Plasma Drift and Atmospheric Tides - A Review 27. Longitudinal Structure of the Mid- and Low-Latitude Ionosphere Observed by Space-borne GPS Receivers 28. Ionosphere-Thermosphere Coupling in the Low-Latitude Region 29. A Tutorial Review on Sporadic E Layers 30. Long-Term Trends in the Upper Atmosphere - Recent Progress 31. Parameters of the Ionospheric F2 Layer as a Source of Information on Trends in Thermospheric Dynamics Part V Ionosphere-Thermosphere Disturbances and Modelling 32. Storm-Time Response of the Thermosphere-Ionosphere System 33. Ionosphere Data Assimilation: Problems Associated with Missing Physics 34. Penetration of Magnetospheric Electric Fields to the Low Latitude Ionosphere During Storm/Substorms 35. Modeling the Storm Time Electrodynamics