Geo-electric measurements

Rapid variations of the geomagnetic field, caused by space weather, produce an electric field in the Earth's surface. This electric field is the source of electrical currents that can, for example, cause damage to transformers in the power grid and cause corrosion to pipelines.

The plots below show measurements made at BGS observatories to allow us to monitor this geo-electric field.

Latest measurements:

Eskdalemuir

Last 30 days (Click to enlarge).

Notes

• Data are updated every 10 minutes.
• At the moment there is no additional processing - we are just plotting the measurements as they are.
• The data for yesterday and today are plotted at 10 second sampling intervals
• The monthly data are plotted at 60 second sampling intervals
• The 6 hour plot is for the full 1 second data
• dB/dt is calculated as the difference between the measurement now and the measurement 10 seconds ago divided by 10 seconds.