Electron Density Profiles Derived From Ground-Based GPS Observations
- 1 January 2006
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Navigation
- Vol. 59 (3), 395-401
- https://doi.org/10.1017/s0373463306003821
Abstract
Nowadays GPS is widely used to monitor the ionosphere. However, the current results from ground-based GPS observations only provide some information on the horizontal structure of the ionosphere, and are extremely restricted in mapping its vertical structure. In this paper, tomography reconstruction technique was used to image 3D ionospheric structure with ground-based GPS. The first result of the 3D images of the ionospheric electron density distribution in South Korea has been generated from the permanent Korean GPS Network (KGN) data. Compared with the profiles obtained by independent ionosondes at or near the GPS receiver stations, the electron density profiles obtained by the GPS tomographic construction method are in better agreement, showing the validity of the GPS ionospheric tomographic reconstruction. It has also indicated that GPS-based 3D ionospheric mapping has the potential to complement other expensive observing techniques in ionospheric mapping, such as ionosondes and radar.This publication has 16 references indexed in Scilit:
- Isolated ionospheric disturbances as deduced from global GPS networkAnnales Geophysicae, 2004
- A new technique for mapping of total electron content using GPS network in JapanEarth, Planets and Space, 2002
- International Reference Ionosphere 2000Radio Science, 2001
- Radio sounding in space: magnetosphere and topside ionosphereJournal of Atmospheric and Solar-Terrestrial Physics, 2001
- Determining parameters of large-scale traveling ionospheric disturbances of auroral origin using GPS-arraysJournal of Atmospheric and Solar-Terrestrial Physics, 2000
- A global mapping technique for GPS‐derived ionospheric total electron content measurementsRadio Science, 1998
- Application of computerized tomography to the investigation of ionospheric structuresRadio Science, 1990
- High‐latitude F region irregularities: A review and synthesisReviews of Geophysics, 1988
- Ionospheric imaging using computerized tomographyRadio Science, 1988
- Algebraic Reconstruction Techniques (ART) for three-dimensional electron microscopy and X-ray photographyJournal of Theoretical Biology, 1970