On the voltage and distance across the low latitude boundary layer

Hapgood, M. and Lockwood, M. ORCID: https://orcid.org/0000-0002-7397-2172 (1993) On the voltage and distance across the low latitude boundary layer. Geophysical Research Letters, 20 (2). pp. 145-148. ISSN 0094-8276 doi: 10.1029/93GL00063

Abstract/Summary

A pass of the AMPTE-UKS satellite through the low-latitude boundary layer (LLBL) at 8:30 MLT is studied in detail. The magnetosheath field is predominantly northward. It is shown that multiple transitions through part or all of the layer of antisunward flow lead to overestimation of both the voltage across this layer and its width. The voltage is estimated to be only about 3 kV and this implies that the full LLBL is about 1200 km thick, consistent with previous studies.