01 January | 02 February | 03 Mars | 04 April | 05 May | 06 June |
07 July | 08 August | 09 September | 10 October | 11 November | 12 December |
The infrasound data on this server is made available to the scientific community for research and educational purposes only. When used in scientific publications a proper acknowledgement should be made to the Swedish Institute of Space Physics, Umeå.