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Geomagnetic Pulsations

Solar activity is carried out into the solar system by the solar wind. The solar wind interacts with the Earth's magnetic field and generates measurable ground level and atmospheric effects. For example, from the Earth's surface, using the array of BGS observatories, we observe in near to real time the ultra-low frequency (ULF) geomagnetic field line resonances known as 'pulsations'. Observations of pulsations help remotely diagnose activity occurring in the plasmasphere, for example, the density variations in the plasma that can disrupt satellite communications.

Currently we operate:

Data are updated every 15 minutes.

We also have filters that analyse all the continuous pulsation frequency bands, as designated by IAGA. These data can be made available on request.

We plan to develop near real-time space weather products from the pulsation data. We'd also like to collaborate on the wider scientific and educational use of pulsations. If you are interested please contact Dr Alan Thomson.