We have produced a standardised high-quality set of measurements to create definitive data for four Indonesian Geomagnetic Observatories for 2010–2018. We explain the steps taken to update the existing data collection and processing protocols and suggest improvements to further enhance the quality of the magnetic time series at each observatory. The new data will fill the gap in the western Pacific region and provide input into geomagnetic field modeling and secular variation studies.

As computing and geophysical sensor components have become increasingly affordable over the past decade, it is now possible to build a cost-effective system for monitoring the Earth's natural magnetic field variations, in particular for space weather events, e.g. aurorae. Sensors available to the general public are ~ 100 times less sensitive than scientific instruments but only 1/100th of the price. We demonstrate a system that allows schools to contribute to a genuine scientific sensor network.

This paper describes the study of the effects of solar wind and solar storms on the national electrical power transmission grid in Austria. These storms result in currents in the ground that can cause damage to power grids, particularly those at high latitudes. Results show that very strong solar storms could result in problems in Austria as well, and this information is important to the grid operators to properly implement mitigation strategies in the future.