Comparison of case studies between the maximum of SC23 (left panels) and SC24 (rights panels). From top to bottom: time series of the following: solar wind speed, V_sw in km s⁻¹; v − b correlation coefficient, ρ_v − b, computed at a 1 h scale; energy associated to z⁺ and z⁻ modes, e⁺ (red) and e⁻ (black) in km² s⁻² (energy per unit mass), respectively, computed at a 1 h scale; kinetic and magnetic energy, e^v (black) and e^b (red) in km² s⁻² (energy per unit mass), computed at a 1 h scale; magnetic compressibility, C_bi; and plasma beta, β. The shaded gray boxes indicate a one-day interval within the Alfvénic solar wind streams highlighted in Fig. 5.