Studying the small-scale structure of a polarization jet during the April 20, 2018 geomagnetic storm
Journal Title: Solar-Terrestrial Physics - Year 2021, Vol 7, Issue 1
Abstract
In this work, we study the small-scale structure of a polarization jet in the subauroral region during the April 20, 2018 geomagnetic storm. We report measurement results of plasma parameters inside the polarization jet with a maximum sampling rate of up to 1 kHz, obtained with Langmuir probes installed on the NorSat-1 microsatellite. The study establishes the presence of temperature and electron density inhomogeneities inside the polarization jet with spatial dimensions of tens to hundreds of meters. The previously known features of the polarization jet evolution have been confirmed. We have also found that the distribution of the electron temperature inside the jet forms two separate peaks as the geomagnetic activity develops during the storm.
Authors and Affiliations
Sinevich A. A. , Chernyshov A. A. , Chugunin D. V. , Miloch W. J. , Mogilevsky M. M.
Keywords
Related Articles
- EP ID EP696866
- DOI 10.12737/stp-71202103
- Views 195
- Downloads 1
CALIBRATION OF SIBERIAN RADIOHELIOGRAPH IMAGES
We discuss the method for automatic calibration of solar radio images derived from the first stage of the multiwave Siberian Radioheliograph (SRH-48). SRH is a 48-element T-shaped radiointerferometer in the 4–8 GHz frequ...
INVERSION OF BACKSCATTER IONOGRAMS INTO QUASIPARABOLIC IONOSPHERIC LAYER PARAMETERS
We present an inversion scheme of the backscatter signal leading edge into parameters of the quasi-parabolic electron density profile, which is based on the comparison of experimental and calculated minimum delays of sca...
COMPARISON OF GROUND-BASED AND SATELLITE DATA ON SPATIOTEMPORAL DISTRIBUTION OF LIGHTNING DISCHARGES UNDER SOLAR MINIMUM
Worldwide maps of lightning activity have been obtained from the ground-based World Wide Lightning Location Network (WWLLN) for 2007–2009. We have compiled these maps separately for different seasons and UT periods, usin...
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...
EARLY DIAGNOSTICS OF GEOMAGNETIC STORMS BASED ON OBSERVATIONS OF SPACE MONITORING SYSTEMS
We address the problem of early diagnostics of geomagnetic storms based on the use of models of coordinates of movements of centers of solar coronal mass ejections (CME) and observations of their angular positions obtain...