Abstract
The position of dayside aurora (as measured from South Pole station in 1980) is compared with the interplanetary magnetic field Bz component and to the AE index. The results are consistent with our earlier work showing a close relationship with AE and little correlation with Bz. Two recent papers have presented data that were interpreted to indicate a dominant Bz correlation. A reconsideration of the data sets used in those papers does not support dominant Bz dependence, and in fact reaffirms a close dependence on AE. We conclude that the position of the dayside cusp is largely controlled by substorm processes internal to the magnetosphere rather than by direct merging and erosion processes with the interplanetary field.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
