Projects per year
Abstract
Recent developments in tomographic imaging allow the use of GPS satellite data to image the Earth's ionosphere. Ground-based GPS receivers monitor the Earth's ionosphere continuously, and a comprehensive database of ionospheric measurements suitable for tomographic processing now exists. The tomographic inversion of these GPS data in a three-dimensional time-dependent inversion algorithm can reveal the spatial and temporal distribution of ionospheric electron density. This new technique is unique for studying ionospheric physics because it gives a time-continuous near-global view of the ionosphere. The tomographic algorithms have been under continuous development for several years and are now yielding new geophysical results. Two fundamentally different algorithms (Multi-instrument Data Analysis System and Ionospheric Data Assimilation Three-Dimensional) are presented. They show the ionospheric impact of two major space weather events during the recent solar maximum. Results obtained from these two algorithms are similar, which provides additional confidence in the accuracy of the images.
Original language | English |
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Journal | Space Weather |
Volume | 5 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2007 |
Bibliographical note
ID number: ISI:000253072900001Fingerprint
Dive into the research topics of 'Four-dimensional GPS imaging of space weather storms'. Together they form a unique fingerprint.Projects
- 2 Finished
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INVERT - A CENTRE FOR IMAGING SCIENCE
Mitchell, C. (PI)
Engineering and Physical Sciences Research Council
1/10/06 → 31/12/11
Project: Research council
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3D TIME VARYING GPS IMAGING OF THE POLAR IONOSPHERE
Mitchell, C. (PI) & Evans, A. (CoI)
Engineering and Physical Sciences Research Council
1/06/05 → 31/05/08
Project: Research council