Geomagnetic storm warning

A method, comprising:

• receiving a log of geomagnetic variation measurements from one or more remote observatories;
• calculating a geomagnetic variation reference value for each month for each remote observatory;
• calculating the difference between the geomagnetic variation reference value and the current geomagnetic variation measurements;
• determining auroral magnetic activity indices based at least in part on superposing the differences from each observatory to determine an amplitude upper envelope and an amplitude lower envelope, and wherein an auroral electrojet index is given as equaling an amplitude upper index minus an amplitude lower index;
• and
• applying the auroral magnetic activity indices to generate a warning in response to substorm activity.

A system, comprising:

• a memory having computer readable instructions;
• a processor for executing the computer readable instructions, the computer readable instructions including:
• receiving a substorm activity data log from one or more remote sensors, wherein substorm activity is due to solar activity;
• receiving a harmonic distortion data stream from one or more remote observatories monitoring disturbances on a power grid, wherein the distortion is due to geomagnetically induced currents;
• applying a mathematical model to the harmonic distortion data stream to create a derived harmonic distortion data log;
• computing phase-to-phase similarity of the three phases from the derived harmonic distortion data log;
• predicting future adverse events due to geomagnetically induced currents on the power grid based at least in part on the comparison and the substorm activity data log;
• and
• creating a warning based on the prediction.