scholarly journals Mars plasma system response to solar wind disturbances during solar minimum

2017 ◽  
Vol 122 (6) ◽  
pp. 6611-6634 ◽  
Author(s):  
B. Sánchez‐Cano ◽  
B. E. S. Hall ◽  
M. Lester ◽  
M. L. Mays ◽  
O. Witasse ◽  
...  
Keyword(s):  
Solar Wind ◽  
Solar Minimum ◽  
System Response ◽  
Plasma System ◽  
Solar Wind Disturbances

H-Cmes and Ii-Type Radio Bursts Related Intense Geomagnetic Storms in Relation With Interplanetary Magnetic Field and Solar Wind Disturbances

2012 ◽  
Vol 2 (10) ◽  
pp. 1-3 ◽  
Author(s):  
Praveen Kumar Gupta ◽  
◽  
Puspraj Singh Puspraj Singh ◽  
Puspraj Singh Puspraj Singh ◽  
P. K. Chamadia P. K. Chamadia
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Interplanetary Magnetic Field ◽  
Geomagnetic Storms ◽  
Radio Bursts ◽  
Solar Wind Disturbances

Influence of Interacting Solar Wind Disturbances on the Variations in Galactic Cosmic Rays

2021 ◽  
Vol 61 (6) ◽  
pp. 792-800
Author(s):  
N. S. Shlyk ◽  
A. V. Belov ◽  
M. A. Abunina ◽  
E. A. Eroshenko ◽  
A. A. Abunin ◽  
...  
Keyword(s):  
Solar Wind ◽  
Cosmic Rays ◽  
Galactic Cosmic Rays ◽  
Solar Wind Disturbances

scholarly journals Behavior of zonal components of CR distribution during periods of solar wind disturbances

2017 ◽  
Author(s):  
Petr Yurievich Gololobov ◽  
Vladislav Grigoryev ◽  
Sergey Starodubtsev
Keyword(s):  
Solar Wind ◽  
Solar Wind Disturbances

scholarly journals Venus ion outflow estimates at solar minimum: Influence of reference frames and disturbed solar wind conditions

2013 ◽  
Vol 118 (6) ◽  
pp. 3592-3601 ◽  
Author(s):  
T. Nordström ◽  
G. Stenberg ◽  
H. Nilsson ◽  
S. Barabash ◽  
T. L. Zhang
Keyword(s):  
Solar Wind ◽  
Solar Minimum ◽  
Reference Frames ◽  
Ion Outflow

scholarly journals Extremely low geomagnetic activity during the recent deep solar cycle minimum

2011 ◽  
Vol 7 (S286) ◽  
pp. 200-209 ◽  
Author(s):  
E. Echer ◽  
B. T. Tsurutani ◽  
W. D. Gonzalez
Keyword(s):  
Solar Wind ◽  
Solar Cycle ◽  
Geomagnetic Activity ◽  
Solar Minimum ◽  
Solar Wind Speed ◽  
Sunspot Cycle ◽  
Cycle Minimum ◽  
Current Minimum ◽  
Solar Wind Parameters ◽  
Xix Century

AbstractThe recent solar minimum (2008-2009) was extreme in several aspects: the sunspot number, Rz, interplanetary magnetic field (IMF) magnitude Bo and solar wind speed Vsw were the lowest during the space era. Furthermore, the variance of the IMF southward Bz component was low. As a consequence of these exceedingly low solar wind parameters, there was a minimum in the energy transfer from solar wind to the magnetosphere, and the geomagnetic activity ap index reached extremely low levels. The minimum in geomagnetic activity was delayed in relation to sunspot cycle minimum. We compare the solar wind and geomagnetic activity observed in this recent minimum with previous solar cycle values during the space era (1964-2010). Moreover, the geomagnetic activity conditions during the current minimum are compared with long term variability during the period of available geomagnetic observations. The extremely low geomagnetic activity observed in this solar minimum was previously recorded only at the end of XIX century and at the beginning of the XX century, and this might be related to the Gleissberg (80-100 years) solar cycle.

scholarly journals Temporal Evolution of the Solar Wind Bulk Velocity at Solar Minimum by Correlating the STEREO A and B PLASTIC Measurements

Solar Physics ◽  
2009 ◽  
Vol 256 (1-2) ◽  
pp. 365-377 ◽  
Author(s):  
A. Opitz ◽  
R. Karrer ◽  
P. Wurz ◽  
A. B. Galvin ◽  
P. Bochsler ◽  
...  
Keyword(s):  
Solar Wind ◽  
Solar Minimum ◽  
Temporal Evolution ◽  
Bulk Velocity

A neural network-based mid-term prognosis of geomagnetic storms that uses pre-storm effects related to current sheets and magnetic islands

2021 ◽  
Author(s):  
Mikhail Fridman
Keyword(s):  
Solar Wind ◽  
Solar Minimum ◽  
High Speed ◽  
Geomagnetic Storms ◽  
Magnetic Islands ◽  
Solar Wind Density ◽  
Short Term ◽  
Storm Effects ◽  
Term Forecast ◽  
Advance Time

<p>Mid-term prognoses of geomagnetic storms require an improvement since theу are known to have rather low accuracy which does not exceed 40% in solar minimum. We claim that the problem lies in the approach. Current mid-term forecasts are typically built using the same paradigm as short-term ones and suggest an analysis of the solar wind conditions typical for geomagnetic storms. According to this approach, there is a 20-60 minute delay between the arrival of a geoeffective flow/stream to L1 and the arrival of the signal from the spacecraft to Earth, which gives a necessary advance time for a short-term prognosis. For the mid-term forecast with an advance time from 3 hours to 3 days, this is not enough. Therefore, we have suggested finding precursors of geomagnetic storms observed in the solar wind. Such precursors are variations in the solar wind density and the interplanetary magnetic field in the ULF range associated with crossings of magnetic cavities in front of the arriving geoeffective high-speed streams and flows (Khabarova et al., 2015, 2016, 2018; Adhikari et al., 2019). Despite some preliminary studies have shown that this might be a perspective way to create a mid-term prognosis (Khabarova 2007; Khabarova & Yermolaev, 2007), the problem of automatization of the prognosis remained unsolved.</p>

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