2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127279We present Cluster measurements of large electric fields correlated with intense downward field-aligned currents, and show that the data can be reproduced by a simple model of ionospheric plasma depletion caused by the currents. This type of magnetosphere-ionosphere interaction may be important when considering the mapping between these two regions of space.Space PhysicsPlasma Physicstext