Long-term changes in the north–south asymmetry of solar activity: a nonlinear dynamics characterization using visibility graphs [PDF]
Nonlinear Processes in Geophysics, 2014 Solar activity is characterized by complex dynamics superimposed onto an almost periodic, approximately 11-year cycle. One of its main features is the presence of a marked, time-varying hemispheric asymmetry, the deeper reasons for which have not yet ...
Y. Zou +4 more
doaj +4 more sources
North–south asymmetry in solar activity and Solar Cycle prediction, V: prediction for the north–south asymmetry in the amplitude of Solar Cycle 25 [PDF]
Astrophysics and Space Science, 2021 There exists a small but statistically significant north–south asymmetry in most of the solar activity indices and it has important implications on the solar dynamo mechanism.
J. Javaraiah
openalex +3 more sources
South-north asymmetry of proton density distribution in the Martian magnetosheath
Earth and Planetary Physics, 2020 We perform a statistical analysis of data from the Mars Atmosphere and Volatile Evolution (MAVEN) project on the global distribution of protons in the Martian magnetosheath.
Jing Wang +3 more
doaj +2 more sources
Solar-Cycle Characteristics in Kodaikanal Sunspot Area: North–South Asymmetry, Phase Distribution and Gnevyshev Gap [PDF]
, 2021 Solar activity is asymmetric in the two hemispheres in almost all cycles. This asymmetry is observed both in cycle amplitude and period. We have used about 90 years of sunspot-area data from the Kodaikanal Solar Observatory to study the north–south ...
B. Ravindra +2 more
openalex +2 more sources
VARIATION IN NORTH-SOUTH ASYMMETRY OF SUN SPOT AREA [PDF]
Journal of Astronomy and Space Sciences, 2007 The existence of the North-South asymmetry of the solar activity is widely accepted even though the phenomenon is not yet satisfactorily understood.
Heon-Young Chang
doaj +3 more sources
North-South Asymmetry in the Geographic Location of Auroral Substorms correlated with Ionospheric Effects. [PDF]
Sci Rep, 2018 Energetic particles of magnetospheric origin constantly strike the Earth’s upper atmosphere in the polar regions, producing optical emissions known as the aurora.
Liou K, Sotirelis T, Mitchell EJ.
europepmc +2 more sources
North-South Asymmetry in a closed Magnetophere
Geofísica Internacional, 1979 Las observaciones -durante la fase anisotrópica de los eventos solares-de diferentes estructuras de flujo de radiación cósmica sobre el casquete polar Norte y el casquete polar Sur, se han tratado siempre de explicar suponiendo que existen diferentes ...
Silvia Bravo
doaj +2 more sources
Long-term Periodicities in North–south Asymmetry of Solar Activity and Alignments of the Giant Planets [PDF]
, 2020 The existence of ≈ 12-year and ≈ 51-year periodicities in the north–south asymmetry of solar activity is well known. However, the origin of these as well as the well-known relatively short periodicities in the north–south asymmetry is not yet clear. Here
J. Javaraiah
openalex +3 more sources
Evolutionary aspects and north-south asymmetry of soft X-ray flare index during solar cycles 21, 22, and 23 [PDF]
, 2015 Aims. In this paper, we investigate the temporal evolution and north-south (N-S) asymmetry in the occurrence of solar flares during cycle 21, 22, and 23, and compare the results with traditional solar activity indices. Methods.
B. Joshi +4 more
openalex +3 more sources
Photospheric Magnetic Field: Relationship Between North–South Asymmetry and Flux Imbalance [PDF]
, 2014 Photospheric magnetic fields were studied using the Kitt Peak synoptic maps for 1976-2003. Only strong magnetic fields (B>100 G) of the equatorial region were taken into account.
E. S. Vernova +2 more
openalex +3 more sources