ESTIMATED NITRIC OXIDE DENSITY IN AURORAS FROM GROUND-BASED PHOTOMETRIC DATA
Journal Title: Solar-Terrestrial Physics - Year 2019, Vol 5, Issue 1
Abstract
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.
Authors and Affiliations
Dashkevich Zh. V. , Ivanov V. E.
Keywords
Related Articles
- EP ID EP700255
- DOI 10.12737/stp-51201908
- Views 125
- Downloads 0
METHOD OF AUTOMATIC CORRECTION OF NEUTRON MONITOR DATA FOR PRECIPITATION IN THE FORM OF SNOW IN REAL TIME
We have carried out an experimental study of the influence of precipitation in the form of snow on measurements of the neutron flux intensity near Earth's surface. We have examined the state of the snow cover and its den...
SPATIAL STRUCTURE OF AZIMUTHALLY SMALL-SCALE MHD WAVES IN ONE-DIMENSIONALLY INHOMOGENEOUS FINITE PRESSURE PLASMA WITH CURVED FIELD LINES
We have studied propagation of hydromagnetic (MHD) waves in one-dimensionally inhomogeneous finite pressure plasma with curved field lines. Magnetic surfaces are considered to be concentric cylinders, where the cylinder’...
Manifestation of solar activity and dynamics of the atmosphere in variations of 577.7 and 630.0 nm atmospheric emissions in solar cycle 24
In the paper, variations of the night emission intensities in the 557.7 and 630 nm atomic oxygen lines [OI] in 2011–2019 have been analyzed. The analysis is based on data from the ISTP SB RAS Geophysical Observatory. The...
TURBULENT PARAMETERS AT DIFFERENT HEIGHTS IN THE ATMOSPHERE. SHACK–HARTMANN WAVEFRONT SENSOR DATA
The paper presents the results of studies of wavefront distortions at different heights in the atmosphere. We have used measurement wavefront data to determine optical turbulence parameters along the line of sight of the...
METHOD OF STUDYING INFRASOUND WAVES FROM THUNDERSTORMS
The paper provides an overview of studies of infrasound signals from thunderstorms over a period of more than 30 years. We deal with several types of infrasound signals from thunderstorms detected at the ISTP SB RAS infr...