Unique categories of geomagnetic activity 2010–2017

This is the dataset generated as described in Coxon et al. (2023): "Extreme Birkeland currents are more likely during geomagnetic storms on the dayside of the Earth".

Please cite the following papers when using this data:

• Forsyth et al. (2015): https://doi.org/10.1002/2015JA021343
• Walach & Grocott (2019): https://doi.org/10.1029/2019JA026816
• Coxon et al. (2023):  https://doi.org/10.1029/2023JA031946

This dataset is a list of timestamps at 1-minute cadence from 00:00 UT on 2010-01-01 to 23:59 UT on 2017-12-31. Each timestamp is assigned an integer category where the integer is defined as follows:

• 0. The timestamp is during quiet times
• 1. The timestamp is during storm times
• 2. The timestamp is during a quiet-time substorm
• 3. The timestamp is during a storm-time substorm