Provisional Dst index

Note! These data are only for non-commercial monitoring purpose.
The provisional Dst index is calculated from geomagnetic field data which were visually screened for artificial noises.
Acknowledgments: We thank the geomagnetic observatories (Kakioka [JMA], Honolulu and San Juan [USGS], Hermanus [RSA], Alibag [IIG]), NiCT, INTERMAGNET, and many others for their cooperation to make the provisional Dst index available.
Year Month
2014:01 02 03 04 05 06 07 08 09 10 11 12                
2015:01 02 03 04 05 06 07 08 09 10 11 12                
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