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Polar D ‐region electron density profiles during a solar proton event
Author(s) -
Helms Ward J.
Publication year - 1978
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs013i005p00853
Subject(s) - solar zenith angle , electron precipitation , proton , atmospheric sciences , magnetosphere , zenith , physics , riometer , polar , electron density , reflection (computer programming) , ionosphere , computational physics , flux (metallurgy) , solar energetic particles , event (particle physics) , coronal mass ejection , electron , environmental science , solar wind , geophysics , astrophysics , astronomy , optics , materials science , plasma , nuclear physics , computer science , metallurgy , programming language
Polar D ‐region electron density profiles during a moderate solar proton event are calculated using a full‐wave computer solution on VLF step frequency sounder data from Byrd Station, Antarctica. VLF reflection height variation with solar proton flux, particle precipitation from the magnetosphere, and solar zenith angle are shown. It is suggested that the mesospheric pressure during this event is less than that extrapolated from an atmospheric model.