We propose to improve the warning time for the prediction of the effects of solar
storms at Earth. This is like meteorology, but not for the kind of weather we
experience everyday on the surface of the Earth - rather, we forecast the solar wind
flowing around the Earths magnetic field.
Solar storms are clouds of plasma threaded by magnetic fields that are ejected from
the solar atmosphere with speeds of millions of kilometers per hour. In case a solar
superstorm impacts the Earth, an event to be expected every 100 years,
technological infrastructures such as power grids and satellites are at risk of failure,
and airline crews and astronauts would experience very high levels of radiation.
These storms can transfer a part of their energy to the Earths magnetic field, leading
to a temporary re-arrangement that is known as a geomagnetic storm. It can result in
beautiful northern and southern lights, but may also pose hazards to technologies
that we take for granted in our daily life, such as electric power and global navigation
systems. To better mitigate these potentially destructive effects, an accurate forecast
of solar wind at the Sun-Earth L1 point can be seen as a key technology in space
weather research, similar to the groundbreaking nature of reusable rockets or gene-
editing in other fields.
In this project, we tap into long-term solar wind data sets, with 40 years of available
data. This makes it possible to use machine learning algorithms in combination with
our own simulation of solar storm magnetic fields to model the future solar wind with
a warning time of up to 2 days. We will connect our forecasts with an existing model
for the location of the aurora, giving the general public information when and where
to see the northern lights. During geomagnetic storms, currents can temporarily be
present in the Earths surface, and for very strong events they may lead to power
blackouts. Therefore, we will couple the predicted solar wind to a model of these
currents at the Central Institution for Meteorology and Geodynamics in Austria, in
order to mitigate potential blackouts in central Europe in the future. The accuracy of
the predictions will be first tested on already existing data, and later in the project
used in a real-time mode. We will also show if future missions based on small
spacecraft (CubeSats) could possibly further enhance the forecasts.
A timely funding of this project would give Austria an edge in the prediction of
geomagnetic storms to further consolidate and strengthen a position of international
leadership in the field of space weather.