Abstract
The saturation tendency of the cross‐polar potential for southward interplanetary magnetic fields (IMFs) has been the subject of numerous studies; however, the behavior of the reverse convection potential when the IMF is northward remains less clear. In this study, we present a thorough statistical analysis of the four‐cell convection pattern associated with northward IMF and lobe reconnection based on a large set of DMSP F13 satellite data. Results show a behavior much similar to the southward IMF case, with a clear saturation tendency of the reverse convection potential for strong solar wind electric fields both seen in the data and validated in the statistical analysis. The saturated potential level reaches a limit of about 60 kV, on the order of a fourth of the saturated potential seen for dayside reconnection during southward IMF.
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