Interplanetary magnetic fields Solar wind 10 Magnetic fields 8 Magnetoplasma 8 Electron beams 6 Magnetosphere 6 Solar energy 6 Solar system 6 Activity cycles 4 Arrival time 4 Boundary layers 4 Continuous profile 4 Energetic particle measurement 4 Energetic particles 4 Fast solar winds 4 High-energy particles 4 In-situ measurement 4 Input parameter 4 Interplanetary coronal mass ejections 4 Interplanetary spacecraft 4 Kelvin-Helmoltz instability 4 Magnetic bubbles 4 Magnetic structure 4 Magnetohydrodynamics 4 Mars 4 Measured parameters 4 Methods:data analysis 4 Neutron monitors 4 Parker spiral 4 Path length 4