Open AccessEstimated nitric oxide density in auroras from ground-based photometric data
Author(s) -
Жанна Дашкевич,
Жанна Дашкевич,
В. Е. Иванов,
В. Е. Иванов
Publication year - 2019
Publication title -
solnečno-zemnaâ fizika
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.11
H-Index - 2
ISSN - 2412-4737
DOI - 10.12737/szf-51201908
Subject(s) - altitude (triangle) , atmospheric sciences , ionosphere , computational physics , physics , polar , meteorology , geophysics , geodesy , astrophysics , environmental science , geology , astronomy , mathematics , geometry
In this paper, we numerically estimate the nitric oxide density in auroras, using photometric data on 427.8, 557.7, and 630.0 nm emission intensities. The data were obtained at midnight at observatories of the Polar Geophysical Institute. These estimates were made using a numerical modeling procedure with a time-dependent model of the auroral ionosphere [Dashkevich et al., 2017]. It is shown that the NO density in the maximum of the altitude profile is between (1÷3.3)∙10^8 cm–3. The obtained estimates indicate the absence of a correlation between the [NO]max values and 427.8 nm emission intensities.