TITLE:
Distributions and Structure of the Solar Wind during Solar Cycles 23 and 24
AUTHORS:
Somaïla Koala, Wendkouni Paulin Bere, Yacouba Sawadogo, Issamaïl Ki, Jean Louis Zerbo
KEYWORDS:
Solar Wind, Solar Activity, Geomagnetic Activity, Solar Cycle
JOURNAL NAME:
International Journal of Geosciences,
Vol.14 No.9,
September
6,
2023
ABSTRACT: To observe the level of interaction between the solar wind and the geomagnetic
activity, we analyzed the distribution of the solar wind speeds according to
the different classes of geomagnetic activity and the different phases of solar
activity. We found that, the magnetic quiet activity reccord 80% of the solar
wind speeds V s observed 88% of
solar wind speeds V > 450 km/s. The shock activity observes 82% of
the solar wind speeds V > 450 km/s. About 70% of the solar wind speeds V > 450 km/s, are
observed in the corotating activity class. The cloud shock activity and
fluctuating activity classes observed respectively 37% and 55% of the wind
speeds V > 450 km/s. Furthermore, slow solar winds are mainly observed at the
minimum phase of each solar cycle; but exceptionally the solar maximum phase of
solar cycle 24, records a significant rate of slow solar wind. Shock winds are
mainly observed around the solar maximum and recurrent winds are mainly
observed at the descending phase of the solar cycle. Corotating stable winds
and moderate shock winds dominate respectively at the descending phase and at
the maximum phase.