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dc.contributor.authorChen, C. H.ja
dc.contributor.authorSaito, A.ja
dc.contributor.authorLin, C. H.ja
dc.contributor.authorYamamoto, M.ja
dc.contributor.authorSuzuki, S.ja
dc.contributor.authorSeemala, G. K.ja
dc.contributor.alternative齊藤, 昭則ja
dc.contributor.alternative山本, 衛ja
dc.date.accessioned2016-05-20T01:35:22Z-
dc.date.available2016-05-20T01:35:22Z-
dc.date.issued2016-02-27ja
dc.identifier.issn1880-5981ja
dc.identifier.urihttp://hdl.handle.net/2433/212440-
dc.description.abstractIn this study, we develop a three-dimensional ionospheric tomography with the ground-based global position system (GPS) total electron content observations. Because of the geometric limitation of GPS observation path, it is difficult to solve the ill-posed inverse problem for the ionospheric electron density. Different from methods given by pervious studies, we consider an algorithm combining the least-square method with a constraint condition, in which the gradient of electron density tends to be smooth in the horizontal direction and steep in the vicinity of the ionospheric F2 peak. This algorithm is designed to be independent of any ionospheric or plasmaspheric electron density models as the initial condition. An observation system simulation experiment method is applied to evaluate the performance of the GPS ionospheric tomography in detecting ionospheric electron density perturbation at the scale size of around 200 km in wavelength, such as the medium-scale traveling ionospheric disturbances.ja
dc.format.mimetypeapplication/pdfja
dc.language.isoengja
dc.publisherSpringerOpenja
dc.rights© 2016 Chen et al. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.ja
dc.titleMedium-scale traveling ionospheric disturbances by three-dimensional ionospheric GPS tomography 3. Space scienceja
dc.type.niitypeJournal Articleja
dc.identifier.jtitleEarth, Planets and Spaceja
dc.identifier.volume68ja
dc.relation.doi10.1186/s40623-016-0412-6ja
dc.textversionpublisherja
dc.identifier.artnum32ja
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