Database of Short Large-Amplitude Magnetic Structures (SLAMS) detected by spacecraft 1 of the Cluster mission in the foreshock of Earth

Database of Short Large-Amplitude Magnetic Structures (SLAMS) detected in the foreshock of Earth by spacecraft 1 of the Cluster mission between the years 2002-2012.

An automated algorithm has been used for SLAMS identification followed by a manual verification process to remove bow shock oscillations and other false detections. SLAMS have been defined to have an amplitude of at least two times the background magnetic field. 

More details on the creation of the database are given in the following publication:

Bergman, S., Karlsson, T., Wong Chan, T. K., & Trollvik, H. (2025). Statistical properties of Short Large‐Amplitude Magnetic Structures (SLAMS) in the foreshock of Earth from Cluster measurements. Journal of Geophysical Research: Space Physics, 130. https://doi.org/10.1029/2024JA033568

"SLAMS_database_Cluster_sc1_2002-2012.txt" contains the database created by Bergman et al. (2025), while "SLAMS_database_Cluster_sc1_2002-2012_1min_from_BS.txt" contains additional detections made less than 1 min from the bow shock crossing, not considered by Bergman et al. (2025).

Contact: S. Bergman, sofiabergmanphd@gmail.com