声明
摘要
Abstract
Table of Contents
List of Figures
List of Tables
Chapter 1 Introduction
1．2 Objective and Contrbutions
1．3 Outline Of the Thesis
Chapter 2 Fundamental of Earth’s Magnetic Field
2．1 The Earth’s Magnetic Field
2．2 Solar and Lunar Geomagnetic Daily Variations
2．3 Amospheric Dynamo Theory
2．4 Solar-Tbrrestrial Environment
2．4．1 Earth’s Magnetosphere
2．4．2 Atmospheric Profile and Structure of Earth’s Ionosphere
2．4．3 Current Systems in the Ionosphere
2．4．4 Stratosphere-Ionosphere Coupling
Chapter 3 Method of Decomposing Magnetic Field Data
3．1 Data Analysis Techniques
3．2 Ground-based Geomagnetic Data
3．3 The Calculation of the Baselines
3．4 Tidal Analysis in Geomagnetic Daily Variations
3．5 Spherical Harmonic Analysis in Geomagnetism
3．6 External and Internal Current Functions from SHA
Chapter 4 Geomagnetic Daily Current Effects during Sudden Stratospheric Warmings
4．1 Introduction
4．2 Sources of the Data
4．3 Method of Analysis
4．4 Observational Results
4．5 Discussion
4．6 Conclusions
Chapter 5 Flare-Enhanced Ionospheric Current during 6 and 10 September 2017
5．1 Introduction
5．2 Sources of the Data
5．3 Method of Analysis
5．4 Observational Results
5．4．1 Effects of Disk X9．33 and Limb X8．28 Solar Flares on Ionospheric Current
5．4．2 EEJ Current Response to X9．33 Disk and X8．28 Limb Flares
5．5 Discussion
5．6 Conclusions
6．1 Summary of Findings
Chapter 6 Conclusions and Future Directions
References
Acknowledgments
Author’s Academic Achievements during PhD Study
List of Publications
中国科学技术大学;
