Results 61 to 70 of about 8,815 (178)
Revisiting two-step Forbush decreases [PDF]
, 2011 Interplanetary coronal mass ejections (ICMEs) and their shocks can sweep out galactic cosmic rays (GCRs), thus creating Forbush decreases (FDs). The traditional model of FDs predicts that an ICME and its shock decrease the GCR intensity in a two-step ...
Blake, J. B. +3 more
core +2 more sources
The Eddy Flux Transport of the Magnetohydrodynamic Quasi‐Geostrophic Disturbances
Geophysical Research Letters, Volume 52, Issue 7, 16 April 2025.Abstract The classic Eliassen‐Palm (E‐P) flux in the geophysical fluid dynamics is a vector to qualify the eddy momentum and heat flux transport by Rossby waves in the latitude‐height plane. In this investigation, we derive two magnetic E‐P fluxes to quantify the eddy energy transport by magnetic Rossby waves by using magnetohydrodynamic quasi ...
Chengkang Li, Yaokun Li
wiley +1 more source
, 2012 Using test-particle simulations, we investigate the temporal dependence of the two-point velocity correlation function for charged particles scattering in a time-independent spatially fluctuating magnetic field derived from a three-dimensional isotropic ...
Bakunin +15 more
core +2 more sources
Turbulent accumulation of interplanetary magnetic fluxes at the Venus ionopause
Geophysical Research Letters, 1981 The accumulation of interplanetary magnetic fluxes around the Venus ionopause is examined in the light of the PVO magnetometer and plasma wave measurements. It is argued that convective electric currents within the ionosphere are not sufficient to account for the observed geometry of the magnetic profiles. It is suggested that turbulent flow conditions
openaire +2 more sources
Correlation functions of small-scale fluctuations of the interplanetary magnetic field
, 2010 The Interplanetary Magnetic Field shows complex spatial and temporal variations. Single spacecraft measurements reveal only a one dimensional section of this rich four dimensional phenomenon.
A. Balogh +18 more
core +1 more source
Scaling and singularity characteristics of solar wind and magnetospheric fluctuations
, 2004 Preliminary results are presented which suggest that scaling and singularity characteristics of solar wind and ground based magnetic fluctuations appear to be a significant component in the solar wind - magnetosphere interaction processes.
Jankovičová, D. +2 more
core +1 more source
SPECTRAL INDICES FOR MULTI-DIMENSIONAL INTERPLANETARY TURBULENCE AT 1 AU
The Astrophysical Journal, 2009 We examine Advanced Composition Explorer and Helios 1 data in search of evidence for an anisotropic spectrum of interplanetary magnetic and velocity field fluctuations. Specifically, we focus on the power-law indices of the fluctuation spectra and associated second-order structure functions and ask whether the index varies systematically with the angle
Charles W. Smith +5 more
openaire +2 more sources
Modulation of galactic cosmic rays during the unusual solar minimum between cycles 23 and 24
, 2014 During the recent solar minimum between cycles 23 and 24 (solar minimum $P_{23/24}$) the intensity of Galactic Cosmic Rays (GCRs) measured at the Earth was the highest ever recorded since space age.
Heber, B. +3 more
core +1 more source
Three-dimensional Evolution of Solar Wind during Solar Cycles 22-24
, 2012 This paper presents the analysis of 3D evolution of solar wind density turbulence and speed at various levels of solar activity between solar cycles 22 and 24.
Abramenko +18 more
core +1 more source
Localized enhancements of energetic particles at oblique collisionless shocks
, 2015 We investigate the spatial distribution of charged particles accelerated by non-relativistic oblique fast collisionless shocks using three-dimensional test-particle simulations.
Fraschetti, Federico, Giacalone, Joe
core +1 more source