STUDYING 630 NM ATOMIC OXYGEN EMISSION SOURCES DURING STRONG MAGNETIC STORMS IN THE NIGHT MID-LATITUDE IONOSPHERE
Journal Title: Solar-Terrestrial Physics - Year 2019, Vol 5, Issue 2
Abstract
We analyze significant increases in 630 nm atomic oxygen night emissions during very strong geomagnetic storms, using optical measurements, theoretical modeling, and magnetogram inversion technique (MIT) data. It is shown that during strong magnetic storms when electron precipitation equatorial boundary at the night sector expands up to ~40°, the interaction of energetic electron flux with thermospheric components may cause extreme increases in the 630 nm emission intensity. Model calculations of the red line intensity show good agreement with observational data. Using the November 20, 2003 magnetic storm as an example, we have found that oxygen atom collisions with thermal Maxwell and superthermal electrons make a major contribution to the integral emission intensity. Thermospheric density variations during the magnetic storm significantly affect the red line generation.
Authors and Affiliations
Leonovich L. A. , Tashchilin A. V. , Lunyushkin S. B. , Karavaev Y. A. , Penskikh Y. V.
Keywords
Related Articles
- EP ID EP702066
- DOI 10.12737/stp-52201905
- Views 104
- Downloads 0
INVESTIGATING THE INFLUENCE OF GEOMETRY OF THE HELIOSPHERIC NEUTRAL CURRENT SHEET AND SOLAR ACTIVITY ON MODULATION OF GALACTIC COSMIC RAYS WITH A METHOD OF MAIN COMPONENTS
The work studies the cumulative modulating effect of the geometry of the interplanetary magnetic field's neutral current sheet and solar activity on propagation of galactic cosmic rays in the heliosphere. The role of eac...
COMPARING METHODS TO ESTIMATE CLOUD COVER OVER THE BAIKAL NATURAL TERRITORY IN DECEMBER 2020
The paper addresses the issue of how much cloud cover data obtained using satellite and model-interpolation techniques are suitable for monitoring the transparency of the atmosphere and determining conditions for airglow...
OPTICAL EFFECTS OF RUNNING SPACECRAFT ENGINES IN THE LOWER THERMOSPHERE
This paper provides a brief overview on optical effects during operation of spacecraft (SC) onboard engines in the lower thermosphere according to observational data from the ISTP SB RAS Geophyisical Observatory. We pres...
PECULIARITIES OF SPORADIC VARIATIONS IN DENSITY AND ANISOTROPY OF GALACTIC COSMIC RAYS IN SOLAR CYCLE 24
In this work, we have processed data from the global network of neutron monitors and muon telescopes by the global survey method to study variations in the density and anisotropy of galactic cosmic rays during Forbush de...
INFLUENCE OF GEOMAGNETIC DISTURBANCES ON SCINTILLATIONS OF GLONASS AND GPS SIGNALS AS OBSERVED ON THE KOLA PENINSULA
We have compared effects of geomagnetic disturbances during magnetic storms of various types (CME and CIR) and during an isolated substorm on scintillations of GLONASS and GPS signals, using a Septentrio PolaRx5 receiver...