scholarly journals Missing driver in the Sun–Earth connection from energetic electron precipitation impacts mesospheric ozone

2014 ◽  
Vol 5 (1) ◽  
Author(s):  
M. E. Andersson ◽  
P. T. Verronen ◽  
C. J. Rodger ◽  
M. A. Clilverd ◽  
A. Seppälä
Keyword(s):  
Energetic Electron ◽  
Electron Precipitation ◽  
The Sun ◽  
Mesospheric Ozone ◽  
Earth Connection

scholarly journals A review of the SCOSTEP’s 5-year scientific program VarSITI—Variability of the Sun and Its Terrestrial Impact

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Kazuo Shiokawa ◽  
Katya Georgieva
Keyword(s):  
Solar Wind ◽  
Interplanetary Space ◽  
Solar Wind Plasma ◽  
The Sun ◽  
Scientific Program ◽  
Solar Cycles ◽  
Grand Minimum ◽  
The Earth ◽  
Earth Connection ◽  
Near Future

AbstractThe Sun is a variable active-dynamo star, emitting radiation in all wavelengths and solar-wind plasma to the interplanetary space. The Earth is immersed in this radiation and solar wind, showing various responses in geospace and atmosphere. This Sun–Earth connection variates in time scales from milli-seconds to millennia and beyond. The solar activity, which has a ~11-year periodicity, is gradually declining in recent three solar cycles, suggesting a possibility of a grand minimum in near future. VarSITI—variability of the Sun and its terrestrial impact—was the 5-year program of the scientific committee on solar-terrestrial physics (SCOSTEP) in 2014–2018, focusing on this variability of the Sun and its consequences on the Earth. This paper reviews some background of SCOSTEP and its past programs, achievements of the 5-year VarSITI program, and remaining outstanding questions after VarSITI.

scholarly journals Strong localized variations of the low-altitude energetic electron fluxes in the evening sector near the plasmapause

1998 ◽  
Vol 16 (1) ◽  
pp. 25-33 ◽  
Author(s):  
E. E. Titova ◽  
T. A. Yahnina ◽  
A. G. Yahnin ◽  
B. B. Gvozdevsky ◽  
A. A. Lyubchich ◽  
...  
Keyword(s):  
Sharp Increase ◽  
Electron Flux ◽  
Particle Interaction ◽  
Energetic Electron ◽  
Recovery Phase ◽  
Electron Precipitation ◽  
Statistical Characteristics ◽  
Evening Sector ◽  
Proton Precipitation ◽  
Low Altitude

Abstract. Specific type of energetic electron precipitation accompanied by a sharp increase in trapped energetic electron flux are found in the data obtained from low-altitude NOAA satellites. These strongly localized variations of the trapped and precipitated energetic electron flux have been observed in the evening sector near the plasmapause during recovery phase of magnetic storms. Statistical characteristics of these structures as well as the results of comparison with proton precipitation are described. We demonstrate the spatial coincidence of localized electron precipitation with cold plasma gradient and whistler wave intensification measured on board the DE-1 and Aureol-3 satellites. A simultaneous localized sharp increase in both trapped and precipitating electron flux could be a result of significant pitch-angle isotropization of drifting electrons due to their interaction via cyclotron instability with the region of sharp increase in background plasma density.Key words. Ionosphere (particle precipitation; wave-particle interaction) Magnetospheric Physics (plasmasphere)

scholarly journals ULF modulation of energetic electron precipitation observed by VLF/LF radio propagation

2020 ◽  
Vol 2020 (372) ◽  
pp. 29-40
Author(s):  
Takuya Miyashita ◽  
Hiroyo Ohya ◽  
Fuminori Tsuchiya ◽  
Asuka Hirai ◽  
Mitsunori Ozaki ◽  
...  
Keyword(s):  
Energetic Electron ◽  
Electron Precipitation ◽  
Radio Propagation

scholarly journals The effect of energetic electron precipitation on middle mesospheric night-time ozone during and after a moderate geomagnetic storm

2012 ◽  
Vol 39 (21) ◽  
pp. n/a-n/a ◽  
Author(s):  
M. Daae ◽  
P. Espy ◽  
H. Nesse Tyssøy ◽  
D. Newnham ◽  
J. Stadsnes ◽  
...  
Keyword(s):  
Geomagnetic Storm ◽  
Energetic Electron ◽  
Electron Precipitation ◽  
Night Time

scholarly journals New conjunctive CubeSat and balloon measurements to quantify rapid energetic electron precipitation

2013 ◽  
Vol 40 (22) ◽  
pp. 5833-5837 ◽  
Author(s):  
L. W. Blum ◽  
Q. Schiller ◽  
X. Li ◽  
R. Millan ◽  
A. Halford ◽  
...  
Keyword(s):  
Energetic Electron ◽  
Electron Precipitation ◽  
Balloon Measurements

scholarly journals Understanding the Driver of Energetic Electron Precipitation Using Coordinated Multisatellite Measurements

2018 ◽  
Vol 45 (14) ◽  
pp. 6755-6765 ◽  
Author(s):  
L. Capannolo ◽  
W. Li ◽  
Q. Ma ◽  
X.‐J. Zhang ◽  
R. J. Redmon ◽  
...  
Keyword(s):  
Energetic Electron ◽  
Electron Precipitation
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