scholarly journals Specification of > 2 MeV electron flux as a function of local time and geomagnetic activity at geosynchronous orbit

Space Weather ◽  
2014 ◽  
Vol 12 (7) ◽  
pp. 470-486 ◽  
Author(s):  
Yi-Jiun Su ◽  
Jack M. Quinn ◽  
W. Robert Johnston ◽  
James P. McCollough ◽  
Michael J. Starks
Keyword(s):  
Local Time ◽  
Geomagnetic Activity ◽  
Electron Flux ◽  
Geosynchronous Orbit

scholarly journals Characteristics of the ionospheric variability as a function of season, latitude, local time, and geomagnetic activity

Radio Science ◽  
2005 ◽  
Vol 40 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
E. A. Araujo-Pradere ◽  
T. J. Fuller-Rowell ◽  
M. V. Codrescu ◽  
D. Bilitza
Keyword(s):  
Local Time ◽  
Geomagnetic Activity ◽  
Ionospheric Variability

scholarly journals The System Science Development of Local Time‐Dependent 40‐keV Electron Flux Models for Geostationary Orbit

Space Weather ◽  
2019 ◽  
Vol 17 (6) ◽  
pp. 894-906 ◽  
Author(s):  
R. J. Boynton ◽  
O. A. Amariutei ◽  
Y. Y. Shprits ◽  
M. A. Balikhin
Keyword(s):  
Local Time ◽  
Electron Flux ◽  
Time Dependent ◽  
Geostationary Orbit ◽  
System Science

scholarly journals The equatorward wall of the subauroral trough in the afternoon/evening sector

2007 ◽  
Vol 25 (3) ◽  
pp. 645-659 ◽  
Author(s):  
G. W. Prölss
Keyword(s):  
Numerical Simulation ◽  
Local Time ◽  
Geomagnetic Activity ◽  
Complex Phenomenon ◽  
Anomalous Increase ◽  
Secondary Importance ◽  
Evening Sector ◽  
Longitudinal Variations ◽  
Specific Part ◽  
Latitudinal Profile

Abstract. Although ionospheric troughs are a very important feature of the subauroral ionosphere, many of their properties remain incompletely documented and understood. Here Dynamics Explorer-2 satellite data are used to investigate one specific part of this complex phenomenon, namely its equatorward wall. We find that in the afternoon/evening sector of the Northern Hemisphere the location of this density drop depends primarily on the level of geomagnetic activity and magnetic local time. Longitudinal variations are only of secondary importance. A formula is derived which summarizes these variations. The magnitude of the density drop in the trough wall depends primarily on altitude and longitude, and to a lesser degree on local time and geomagnetic activity. These variations are also described quantitatively. Using a superposed epoch type of averaging procedure, a mean latitudinal profile of the trough wall is derived. No anomalous increase in the density at the equatorward edge of the trough is observed. There is, however, a significant increase in the electron temperature at the location of the density drop. Our results are important for the empirical description and numerical simulation of ionospheric troughs. They also may be used to define the boundary between middle and subauroral latitudes.

A new approach to predict and estimate enhancements of “killer” electron flux at geosynchronous orbit

2016 ◽  
Vol 126 ◽  
pp. 47-51 ◽  
Author(s):  
Alexander Potapov ◽  
Larisa Ryzhakova ◽  
Battuulai Tsegmed
Keyword(s):  
Electron Flux ◽  
Geosynchronous Orbit ◽  
New Approach

Impact of Significant Time‐Integrated Geomagnetic Activity on 2‐MeV Electron Flux

2019 ◽  
Vol 124 (6) ◽  
pp. 4445-4461 ◽  
Author(s):  
D. Mourenas ◽  
A. V. Artemyev ◽  
X.‐J. Zhang
Keyword(s):  
Geomagnetic Activity ◽  
Electron Flux ◽  
Significant Time
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