In particular during the descending phase of the solar cycle, Alfvén waves in the high-speed
solar wind streams are a major form of interplanetary disturbances. The fluctuating …

Multiple neural network architectures, with different structural composition and complexity,
are implemented in this study with the aim of providing multi-hour-ahead warnings of severe …

Space Weather is receiving more and more attention from the heliophysical scientific
community, as it is now well established that an adequate capability of monitoring any Earth …

The Alfvén wave (AW) is the most common fluctuation present within the solar wind emitted
from the Sun. Whether or not AWs can originate after the collision of an Interplanetary …

Alfvén waves (AWs) are ubiquitous in space and astrophysical plasma. Their crucial role in
various physical processes has triggered intense research in solar–terrestrial physics …

Using multipoint observations over 10 yr near 1 au, we investigate the spectra (5 minutes to
2 hr) of interplanetary Alfvén waves and the responses in the geomagnetic activities. We …

Abstract The Solar Physics Group at the INAF-Turin Astrophysical Observatory (OATo) is
actually involved in different Space Weather (SW) projects and missions. In particular, this …

A geomagnetic storm is a global disturbance of Earth's magnetosphere, occurring as a result
of the interaction with magnetic plasma ejected from the Sun. Despite considerable …

In this work we have studied about the characteristics and dynamical changes during the
recovery time of moderate and strong geomagnetic storms of (Dst<− 50 nT). In our …

In plasma turbulence, energy and cross helicity are transferred across scales at a constant
rate as a consequence of nonlinear interactions. In incompressible magnetohydrodynamics …