Fig. 5From: Distribution of equatorial Alfvén velocity in the magnetosphere: a statistical analysis of THEMIS observationsa–d The L profiles of VA medians obtained on the dawnside (MLT = 05–07) and duskside (MLT = 17–19) with the equatorial mass density m = 3 amu under moderate and quiet conditions. The dots connected by a straight line indicate the VA medians, and the vertical bars connect the lower and upper quartiles. e–f The fundamental toroidal Alfvén frequencies at dawn and dusk under moderate and quiet geomagnetic conditionsBack to article page