The sunrise shows a spectacular light in the night sky, but it is also consumed by the ozone layer illuminating another reason.
Although people blame much for the destruction of the ozone layer, observations of an aurora known as a solitary proton aurora have revealed the cause of ozone depletion as coming from space: charged particles ejected into the plasma. solar flowers and mass coronal ejections even the biting ozone layer. Before now, the influence of these particles was only vaguely known.
Now, an international research team has found that the impact of a solitary aurora proton caused a nearly 250-mile-wide (400-kilometer) hole in the ozone layer, which lies just below where the aurora occurs. Most of the ozone inside disappeared in about an hour and a half. In the case of this phenomenon, researchers did not expect to degrade ozone nearly so much as to expose themselves. it is said.
Proton alone cannot be as fleshy as the dawns aurorae and their southern part, but still visible to human eyes. A plasma attack released by of the sun It carries very energetic ions and electrons with it. Finally, such particles are included in the interior and exterior of the Earth Van Allen radiation beltswhich particles would not strike the planet directly and turn it into a burning desert of the sun Mars.
The particles that make it to the inner radial belt are messed with Earth’s atmosphere when the magnetic-field lines creep up. Nitrogen and hydrogen oxides, which are emitted by the interactions of particles with an ozone-depleted atmosphere. But only this layer of ozone in the mesosphere; the critical layer below, the stratosphere, creeps up. Proton auroras affect Earth separately in other ways, however.
“[Electron fallout] from the Earth’s radiation belt plays an important role in mesospheric ozone depletion, a link between space weather and the climate system,” the researchers wrote in a study describing their findings.
Although the damage left in mesospheric ozone is repairing itself more quickly than the holes in stratospheric ozone (which are often caused by human activity), isolated proton aurora changes still flow into the atmosphere. Space weather It can cause glitches in satellites and electrical infrastructure, and the particles pose a hazard to astronauts.
Scientists’ findings will help explain fluctuations in space weather that can affect the planet’s atmosphere.
The research was published in the newspaper on Oct. 11 Scientific reports (Opens in a new tab).
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