The strong solar flare occurred on Monday, November 7 at 1:11 a.m. Poland time. Then a powerful explosion occurred inside sunspot AR3141. It caused interference with radio waves on Earth.
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A powerful explosion inside a sunspot. Class M glow was recorded.
Scientists divide solar flares into five classes: X, M, C, B, and A. Class A, B, and C flares are generally very small and have no effect on the situation on Earth. Class M explosions can cause radio communication problems and minor geomagnetic storms. On the other hand, Class X flares are a serious problem because they can disrupt communication across the planet.
In the November 7 explosion, radio interference affected a large area of the Pacific Ocean. It has also affected people in parts of Australia and New Zealand.
flares in the sun. May cause interference to radio communications
A solar flare is caused by the sudden release of a huge amount of energy into the sun’s atmosphere as a result of the process of magnetic field annihilation. This energy was previously accumulated in the magnetic fields of the active regions.
Flares can interfere with high-frequency radio communications on Earth. Under normal conditions, electromagnetic waves sent by electronic devices are reflected from the ionosphere to the surface of our planet and can be picked up by receivers. Meanwhile, the radiation of solar flares distorts or absorbs these waves.
This type of interference primarily affects civilian air navigation and satellite systems, but the military also relies on high-frequency radio communications, notes astrophysicist George Hu of the Johns Hopkins Laboratory of Applied Physics.
It’s echoed by Mike Hapgood, a space weather researcher at STFC Rutherford Appleton in the UK. – Many aircraft have satellite communications as support, but pilots use high-frequency waves as part of international procedures – says the scientist.
Flares in the sun can cause a disturbance, but they usually don’t last more than a few tens of minutes. Hapgood adds that communications disruptions will affect take-off and landing, as the aircraft will then use very high-frequency short-range radio links.
See also: Strong solar flare. NASA publishes the video
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