Data for the Development of the Conjugate Transpolar Arcs

1. The DMSP/SSUSI data were taken by the DMSP F16 and F17 in both the Northern and Southern Hemisphere using LBHS band. The evolution of conjugate TPAs observed in two hemispheres in response to an IMF By changing from ~ -7 nT to ~ 0 nT is investigated. We acknowledge the use of DMSP/SSUSI data provided by the Johns Hopkins University Applied Physics Laboratory (https://cdaweb.gsfc.nasa.gov). 2. With the help of the Open Geospace General Circulation Model (OpemGGCM), we investigated the evolution of magnetic field topology associated with an IMF By changing. This dataset includes the simulation results from 11:30 UT to 14:30 UT. We would like to thank the Community Coordinated Modeling Center for providing the OpenGGCM (https://ccmc.gsfc.nasa.gov/models/OpenGGCM~4.0/).