Yang, JianWolf, Richard A.Toffoletto, Frank R.Sazykin, Stanislav2017-08-042017-08-042013Yang, Jian, Wolf, Richard A., Toffoletto, Frank R., et al.. "RCM-E simulation of substorm growth phase arc associated with large-scale adiabatic convection." <i>Geophysical Research Letters,</i> 40, no. 23 (2013) Wiley: 6017-6022. https://doi.org/10.1002/2013GL058253.https://hdl.handle.net/1911/96588[1] Substorm auroral breakup often occurs on a longitudinally elongated arc at the end of a growth phase. We present an idealized high-resolution simulation with the Rice Convection Model-Equilibrium (RCM-E) to investigate how large-scale adiabatic convection under equilibrium conditions can give rise to an auroral arc. We find that a thin arc that maps to the magnetic transition region at r ~ 8 RE emerges in the late growth phase. The simulation implies that the arc in the premidnight sector is associated with a sheet of additional region 1 sense field-aligned current (FAC) just poleward of the main region 2 FAC, while the arc in the postmidnight sector is associated with the poleward portion of the main upward region 2 FAC. Explanations for the location and the thickness of the arc are proposed, based on the simulation.engArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.Journal articleRCM-E_simulationhttps://doi.org/10.1002/2013GL058253