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 91
- Downloads 0
MAGNETOSPHERIC RESPONSE TO THE INTERACTION WITH THE SPORADIC SOLAR WIND DIAMAGNETIC STRUCTURE
We report the results of a study on the movement of the solar wind diamagnetic structure (DS), which is a sequence of smaller-scale microDS being part of the May 18, 2013 coronal mass ejection, from a source on the Sun t...
CURRENT STATUS OF THE TEMPERATURE AND HUMIDITY REGIME OF THE TROPOSPHERE IN THE SIBERIAN SECTOR IN DIFFERENT CIRCULATION PERIODS
The paper studies the long-term dynamics of air temperature and relative humidity anomaly indices in the surface layer and at different levels of the troposphere in Siberia and neighboring regions (European and Far Easte...
SOLVING A NAVIGATION PROBLEM WITH THE TOTAL ELECTRON CONTENT MODEL GEMTEC
This article explores the possibility of improving the accuracy of positioning in single-frequency satellite radio navigation equipment through the use of an empirical model of the total electronic content GEMTEC. The ef...
MODERN HEATING FACILITY FOR RESEARCH INTO THE MID-LATITUDE IONOSPHERE
The development of new devices for research in physics of the upper atmosphere and near-Earth space, which can be used to carry out controlled experiments on the modification of the ionosphere by powerful short-wave radi...
MODULATION EFFECT OF MAGNETIC COROTATING TRAP ON 27-DAY COSMIC RAY VARIATION IN NOVEMBER–DECEMBER 2014
We study the 27-day cosmic-ray (CR) intensity variation occurring in November–December 2014, using ground-based measurements from the worldwide network of neutron monitors and GOES-15 satellites. A determining factor in...