MagnetometerDIY geomagnetic storm monitoring | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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I've been running the magnetometer more or less uninterrupted since December 2011. On this page you can see near real-time plots of the data coming out. Plots are updated every 6 hours or so. Time scale is in UTC. The dominant pattern is the normal daily fluctuation of the magnetic field. Superimposed on this are two kinds of deviations. First, there are sharp jumps, caused by things moving around the magnetometer. There are also smoother bumps and dips - those are real changes in the magnetic field - minor or major magnetic storms. If you zoom on any of the images you will notice two traces on the graphic. One, in light gray, is the raw data, as it comes from the magnetometer. The other trace, in red, is the filtered data. The filtering algorithm attempts to remove or at least reduce the artificial noise caused by cars, bicycles parked nearby, and so on. |
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