A Statistical Analysis of Solar Wind Parameters and Geomagnetic Indices during the Solar Cycle 23

2015 ◽  
Vol 58 (2) ◽  
pp. 170-178
Author(s):  
SHEN Xiao-Fei ◽  
NI Bin-Bin ◽  
GU Xu-Dong ◽  
ZHOU Chen ◽  
LIU Yong ◽  
...  
2017 ◽  
Vol 60 (8) ◽  
pp. 1850-1865 ◽  
Author(s):  
Alan Prestes ◽  
Virginia Klausner ◽  
Arian Ojeda González ◽  
Silvio Leite Serra

Solar Physics ◽  
2012 ◽  
Vol 280 (2) ◽  
pp. 623-640 ◽  
Author(s):  
C. Katsavrias ◽  
P. Preka-Papadema ◽  
X. Moussas

2011 ◽  
Vol 7 (S286) ◽  
pp. 200-209 ◽  
Author(s):  
E. Echer ◽  
B. T. Tsurutani ◽  
W. D. Gonzalez

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.


Solar Physics ◽  
2015 ◽  
Vol 290 (3) ◽  
pp. 841-874 ◽  
Author(s):  
M. Dierckxsens ◽  
K. Tziotziou ◽  
S. Dalla ◽  
I. Patsou ◽  
M. S. Marsh ◽  
...  

2019 ◽  
Vol 4 (1) ◽  
pp. 65-72
Author(s):  
Imad A. H. Al-Hayali ◽  
Wafaa H. A. Zaki ◽  
Shadan S. Salih

2005 ◽  
Vol 31 (8) ◽  
pp. 546-556 ◽  
Author(s):  
N. A. Lotova ◽  
K. V. Vladimirskii ◽  
V. N. Obridko ◽  
B. P. Filippov ◽  
O. A. Korelov

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