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    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Atmospheric and Solar-Terrestrial Physics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Atmospheric and Solar-Terrestrial Physics, 174, 2018 DOI: 10.1016/j.jastp.2018.01.032

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Observations by incoherent scatter radar of related D- and F-region structuring at very high latitude

Research output: Contribution to journalJournal article

Published
<mark>Journal publication date</mark>09/2018
<mark>Journal</mark>Journal of Atmospheric and Solar-Terrestrial Physics
Volume174
Number of pages12
Pages (from-to)5-16
Publication statusPublished
Early online date28/03/18
Original languageEnglish

Abstract

Properties and associations of F- and D-region ionospheric structures during weak electron precipitation at very high latitude are investigated using the Longyearbyen incoherent scatter radar. The radio absorption deduced from the electron density observations revealed evidence of a persistent low-altitude absorption layer peaking at 80-85 km. Inversion of the electron density profile to give an estimate of the incoming energetic electron spectrum suggests that its source may be the solar wind. Strong similarities are seen between variations in the F and D regions which suggest that the electron flux reaching the D-region is being modulated in energy by the variations of electron density in the F-region.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Journal of Atmospheric and Solar-Terrestrial Physics. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Atmospheric and Solar-Terrestrial Physics, 174, 2018 DOI: 10.1016/j.jastp.2018.01.032