Medium-scale traveling ionospheric disturbances by three-dimensional ionospheric GPS tomography 3. Space science

C. H. Chen, A. Saito, C. H. Lin, M. Yamamoto, S. Suzuki, G. K. Seemala

研究成果: Article同行評審

53 引文 斯高帕斯(Scopus)

摘要

In 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.

原文English
文章編號32
期刊Earth, Planets and Space
68
發行號1
DOIs
出版狀態Published - 2016 12月 1

All Science Journal Classification (ASJC) codes

  • 地質學
  • 空間與行星科學

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