Four-dimensional GPS imaging of space weather storms

摘要: [1] Recent developments in tomographic imaging allow the use of GPS satellite data to image Earth's ionosphere. Ground-based receivers monitor ionosphere continuously, and a comprehensive database ionospheric measurements suitable for processing now exists. The inversion these three-dimensional time-dependent algorithm can reveal spatial temporal distribution electron density. This new technique is unique studying physics because it gives time-continuous near-global view algorithms have been under continuous development several years are yielding geophysical results. Two fundamentally different (Multi-instrument Data Analysis System Ionospheric Assimilation Three-Dimensional) presented. They show impact two major space weather events during recent solar maximum. Results obtained from similar, which provides additional confidence accuracy images.