Fig. 4: Statistical Results of Electric Fields and Charges.
From: Observational features of charge distribution in Earth’s inner magnetosphere

Spatial distributions of electric field and charge density derived from MMS data over all MLT(magnetic local time) and \(4\le L\le 10\) in the inner magnetosphere during three geomagnetic conditions (distinguished by the columns): a–c The y-component of the electric field Ey, d–f charge density\(\rho\) shown by their color scales, and (g–i) parallel electric field E|| shown by its color scale, where red corresponds to a poleward electric field and blue to an equatorward field.