Experts say that solar activity as low as it currently is has not been seen since the mini-ice age that took place between 1645 and 1715 – a period known as the Maunder Minimum where the entire Thames froze over.
A new model has allowed experts to predict solar activity with more accuracy than ever before and it suggests that magnetic activity will fall by 60 per cent between 2030 and 2040.
The model looks at the Sun’s ’11-year heartbeat’ – the period it takes for magnetic activity to fluctuate. This cycle was first discovered some 173 years ago.
However, a mathematician has established a more up-to-date model that can forecast what the solar cycles will look like based upon dynamo effects in two layers of the Sun.
Dynamo effects are a geophysical theory that dictate how the movement of the Earth’s outer core conducts materials like liquid iron across the magnetic field to create an electric current – this also influences fluid motion beneath Earth’s surface to create two magnetic fields along the axis of the Earth’s rotation.
Valentina Zharkova from Northumbria University applied this theory to the Sun, and was able to predict the affects of solar cycles with 97 per cent accuracy.
Ms Zharkova said at the National Astronomy Meeting: “We found magnetic wave components appearing in pairs, originating in two different layers in the Sun's interior.
(Excerpt) Read more at express.co.uk ...
