scholarly journals A first-principle derivation of the high-latitude total electron content distribution

Radio Science ◽  
1993 ◽  
Vol 28 (1) ◽  
pp. 49-61 ◽  
Author(s):  
D. J. Crain ◽  
J. J. Sojka ◽  
R. W. Schunk ◽  
P. H. Doherty ◽  
J. A. Klobuchar
Keyword(s):  
Total Electron Content ◽  
High Latitude ◽  
Content Distribution ◽  
Electron Content ◽  
First Principle ◽  
Total Electron

scholarly journals Morphology of high‐latitude plasma density perturbations as deduced from the total electron content measurements onboard the Swarm constellation

2017 ◽  
Vol 122 (1) ◽  
pp. 1338-1359 ◽  
Author(s):  
Jaeheung Park ◽  
Hermann Lühr ◽  
Guram Kervalishvili ◽  
Jan Rauberg ◽  
Claudia Stolle ◽  
...  
Keyword(s):  
Total Electron Content ◽  
Plasma Density ◽  
High Latitude ◽  
Electron Content ◽  
Total Electron ◽  
Density Perturbations

scholarly journals GPS scintillations and total electron content climatology in the southern low, middle and high latitude regions

2013 ◽  
Vol 56 (2) ◽  
Author(s):  
Luca Spogli ◽  
Lucilla Alfonsi ◽  
Pierre J. Cilliers ◽  
Emília Correia ◽  
Giorgiana De Franceschi ◽  
...  
Keyword(s):  
Total Electron Content ◽  
High Latitude ◽  
Current Knowledge ◽  
Hot Spot ◽  
Ionospheric Scintillation ◽  
Electron Content ◽  
Total Electron ◽  
Plasma Irregularities ◽  
Gps Scintillations ◽  
High Frequency Sampling

<p>In recent years, several groups have installed high-frequency sampling receivers in the southern middle and high latitude regions, to monitor ionospheric scintillations and the total electron content (TEC) changes. Taking advantage of the archive of continuous and systematic observations of the ionosphere on L-band by means of signals from the Global Positioning System (GPS), we present the first attempt at ionospheric scintillation and TEC mapping from Latin America to Antarctica. The climatology of the area considered is derived through Ground-Based Scintillation Climatology, a method that can identify ionospheric sectors in which scintillations are more likely to occur. This study also introduces the novel ionospheric scintillation 'hot-spot' analysis. This analysis first identifies the crucial areas of the ionosphere in terms of enhanced probability of scintillation occurrence, and then it studies the seasonal variation of the main scintillation and TEC-related parameters. The results produced by this sophisticated analysis give significant indications of the spatial/ temporal recurrences of plasma irregularities, which contributes to the extending of current knowledge of the mechanisms that cause scintillations, and consequently to the development of efficient tools to forecast space-weather-related ionospheric events.</p>

scholarly journals Response of High Latitude Ionospheric TEC to Enhanced Radiation Fluxes during the Major Solar Flare Events

2013 ◽  
Vol 6 (1) ◽  
pp. 43-49 ◽  
Author(s):  
P. K. Purohit ◽  
A. A. Mansoori ◽  
P. A. Khan ◽  
P. Bhawre ◽  
S. C. Tripathi ◽  
...  
Keyword(s):  
Solar Flare ◽  
Total Electron Content ◽  
High Latitude ◽  
Solar Disc ◽  
Electron Content ◽  
Central Meridian ◽  
Total Electron ◽  
X Ray ◽  
Radiation Fluxes ◽  
Peak Enhancement

We have investigated the response of ionosphere to major solar flare events that occurred during 1998 to 2011. The effect of enhanced radiation fluxes in the X-ray and EUV band on the GPS derived Total Electron Content (TEC) is examined. The data of X-ray flux from Geostationary Operational Environment Satellite (GOES) and EUV flux from Solar EUV Monitor (SEM) onboard SOHO spacecraft were correlated with the Total Electron Content (TEC) data of a high latitude station, Davis (68.570S, 77.960E). We found that peak intensities of X-ray and EUV flux correlate very well with the peak values of TEC. We also studied the correlation of peak enhancement of these fluxes with the peak enhancement of TEC and found that peak enhancement of these fluxes correlate highly with the peak enhancement of TEC than with the peak values themselves. It is also found that correlation is extraordinarily improved when these fluxes are multiplied by Cos(CMD) where CMD is Central Meridian Distance on the solar disc, thereby showing that the location of flares on the solar disc plays an important role while investigating the ionospheric influences of solar flares.  Keywords: Ionosphere; TEC; CMD; Solar Flare. © 2014 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved. doi: http://dx.doi.org/10.3329/jsr.v6i1.14100 J. Sci. Res. 6 (1), 43-49 (2014)

Sign in / Sign up

Export Citation Format

Share Document