Long-term variations in the neutral gas composition of the thermosphere over Norilsk (2003–2013) | Zendy

Г. П. Кушнаренко | Zendy; Ольга Яковлева | Zendy; Olga Yakovleva | Zendy; Галина Кузнецова | Zendy

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Long-term variations in the neutral gas composition of the thermosphere over Norilsk (2003–2013)

Author(s) -

Г. П. Кушнаренко,

Ольга Яковлева,

Olga Yakovleva,

Галина Кузнецова

Publication year - 2017

Publication title -

solar-terrestrial physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.11

H-Index - 2

ISSN - 2500-0535

DOI - 10.12737/24278

Subject(s) - thermosphere , earth's magnetic field , quiet , atmospheric sciences , environmental science , ionosphere , term (time) , geology , physics , geophysics , magnetic field , astronomy , quantum mechanics

Seasonal variations in relative values of the main gas components of the thermosphere [O]/[N2] and [O2]/[O] were obtained at the station Norilsk during the period 2003–2013. Estimates were made using a technique we devel-oped and data from the Norilsk digisonde (69° N, 88° E) for heights below the ionospheric F1-layer peak height under quiet and disturbed geomagnetic conditions in different seasons. We established that the [O2]/[O] ratio under quiet and disturbed geomagnetic conditions in all seasons by the end of 2013 decreased from 10 to 20 % relative to the values of 2003. The [O]/[N2] ratio for the same conditions increased to 17 %.

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