Magnetospheric Substorms

10.1029/gm064 ◽  
1991 ◽  
Keyword(s):  
Magnetospheric Substorms

scholarly journals Causality and Information Transfer Between the Solar Wind and the Magnetosphere–Ionosphere System

Entropy ◽  
2021 ◽  
Vol 23 (4) ◽  
pp. 390
Author(s):  
Pouya Manshour ◽  
Georgios Balasis ◽  
Giuseppe Consolini ◽  
Constantinos Papadimitriou ◽  
Milan Paluš
Keyword(s):  
Solar Wind ◽  
Information Transfer ◽  
Linear Time ◽  
Vertical Component ◽  
Causal Link ◽  
Theoretic Approach ◽  
Geomagnetic Disturbances ◽  
Magnetospheric Substorms ◽  
Solar Wind Parameters ◽  
Information Theoretic Approach

An information-theoretic approach for detecting causality and information transfer is used to identify interactions of solar activity and interplanetary medium conditions with the Earth’s magnetosphere–ionosphere systems. A causal information transfer from the solar wind parameters to geomagnetic indices is detected. The vertical component of the interplanetary magnetic field (Bz) influences the auroral electrojet (AE) index with an information transfer delay of 10 min and the geomagnetic disturbances at mid-latitudes measured by the symmetric field in the H component (SYM-H) index with a delay of about 30 min. Using a properly conditioned causality measure, no causal link between AE and SYM-H, or between magnetospheric substorms and magnetic storms can be detected. The observed causal relations can be described as linear time-delayed information transfer.

Magnetospheric substorms observed at the synchronous orbit

1968 ◽  
Vol 73 (21) ◽  
pp. 6687-6698 ◽  
Author(s):  
W. D. Cummings ◽  
J. N. Barfield ◽  
P. J. Coleman
Keyword(s):  
Magnetospheric Substorms ◽  
Synchronous Orbit

The behaviour of the midlatitude F-region at the time of four magnetospheric substorms during the night of 29/30 October 1973

1976 ◽  
Vol 24 (3) ◽  
pp. 293-298
Author(s):  
M.M. Gogoshev ◽  
K.B. Serafimov ◽  
Ts.N. Gogosheva ◽  
K.M. Kazakov
Keyword(s):  
Magnetospheric Substorms ◽  
F Region

Ionospheric effect of the magnetospheric substorms at middle latitudes

1988 ◽  
Vol 11 (2) ◽  
pp. 151-173 ◽  
Author(s):  
Lj. R. Cander ◽  
P. Dominici ◽  
B. Zolesi
Keyword(s):  
Magnetospheric Substorms ◽  
Ionospheric Effect ◽  
Middle Latitudes

The scenario of magnetospheric substorms on the example of events on February 26, 2008

2010 ◽  
Vol 433 (2) ◽  
pp. 1053-1056 ◽  
Author(s):  
V. M. Mishin ◽  
Z. Pu ◽  
L. A. Sapronova ◽  
M. V. Tolochko ◽  
T. I. Saifudinova ◽  
...  
Keyword(s):  
Magnetospheric Substorms

scholarly journals Effect of geomagnetic activity, solar wind and parameters of interplanetary magnetic field on regularities in intermittency of Pi2 geomagnetic pulsations

2015 ◽  
Vol 1 (3) ◽  
pp. 11-20 ◽  
Author(s):  
Надежда Куражковская ◽  
Nadezhda Kurazhkovskaya ◽  
Борис Клайн ◽  
Boris Klain
Keyword(s):  
Magnetic Field ◽  
Solar Wind ◽  
Interplanetary Magnetic Field ◽  
Geomagnetic Activity ◽  
Dynamic Pressure ◽  
Cumulative Distribution ◽  
Qualitative Assessment ◽  
Geomagnetic Pulsations ◽  
Magnetospheric Substorms ◽  
Pi2 Pulsations

We present the results of investigation of the influence of geomagnetic activity, solar wind and parameters of the interplanetary magnetic field (IMF) on properties of the intermittency of midlatitude burst series of Pi2 geomagnetic pulsations observed during magnetospheric substorms on the nightside (substorm Pi2) and in the absence of these phenomena (nonsub-storm Pi2). We considered the index α as a main characteristic of intermittency of substorm and nonsubstorm Pi2 pulsations. The index α characterizes the slope of the cumulative distribution function of Pi2 burst amplitudes. The study indicated that the value and dynamics of the index α varies depending on the planetary geomagnetic activity, auroral activity and the intensity of magnetospheric ring currents. In addition, the forms of dependences of the index α on the density n, velocity V, dynamic pressure Pd of the solar wind and IMF Bx-component are different. The behavior of the index α depending on the module of B, By- and Bz-components is similar. We found some critical values of V, Pd, B, By- and Bz-components, after reaching of which the turbulence of the magnetotail plasma during substorm development is decreased. The revealed patterns of the intermittency of Pi2 pulsations can be used for qualitative assessment of turbulence level in the magnetotail plasma depending on changing interplanetary conditions.

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