Previously Released Data

Also in IMAGE Auroral Boundary Data

Version 1.0 Data, released April 2010

Version 1.0 was superceeded by version 1.1 in June 2010 and version 2 in June 2022.

In version 1.0, a maximum of 20 iterations was used in the least-squares curve fitting of both single and double Gaussian functions. For version 1.1, this was increased to a maximum of 200 iterations.

Version 1.1 of the data can be found here and the methodology for determining the data can be found here.

Version 2 auroral boundary data (2022) can be accessed here and the methodology for determining the data can be found here, as well as in this paper.

For more information regarding these auroral boundaries or their use, please contact Gareth Chisham.