English

3-D extent of the main ionospheric trough--a case study

Space Physics 2007-05-23 v2

Abstract

The EISCAT radar system has been used for the first time in a four-beam meridional mode. The FAST satellite and ALIS imaging system is used in conjunction to support the radar data, which was used to identify a main ionospheric trough. With this large latitude coverage the trough was passed in 2.5 hours period. Its 3-dimensional structure is investigated and discussed. It is found that the shape is curved along the auroral oval, and that the trough is wider closer to the midnight sector. The position of the trough coincide rather well with various statistical models and this trough is found to be a typical one.

Keywords

Cite

@article{arxiv.physics/0001043,
  title  = {3-D extent of the main ionospheric trough--a case study},
  author = {M. Hedin and I. Häggström and A. Pellinen-Wannberg and L. Andersson and U. Brändström and B. Gustavsson and Å. Steen and A. Westman and G. Wannberg and T. v Eyken and T. Aso and C. Cattell and C. W. Carlson and D. Klumpar},
  journal= {arXiv preprint arXiv:physics/0001043},
  year   = {2007}
}

Comments

6 pages, 2 figures, LaTeX. Minor text updates

R2 v1 2026-07-22T18:48:10.265Z