Solar physicist Scott McIntosh, deputy director of the National Center for Atmospheric Research, said that coronal holes are common. Such holes are part of the Sun’s normal activity, McIntosh said, but they are not fully understood. Moreover, these are described as the dark part of solar activity.
Alex Young said that coronal holes are the sources of solar storms with a speed of 500 to 800 kilometers per second. These solar winds are likely to reach the earth during the weekend. He said that there are indications that its effect will start from March 24. “When the high-speed solar wind reaches the Earth, the particles and magnetic forces they carry interact with the geomagnetic field,” he said.
More powerful magnetic fields such as coronal mass ejections can cause power blackouts or disrupt communication systems. But large coronal holes like these are much less violent. So the fresh hole effect is expected to be more powerful.
“However, we are entering a new phase of increased solar activity … where coronal holes are less intense … coronal mass ejections and powerful solar winds will become more common,” Young said. There is concern that coronal mass ejections and solar winds can release powerful magnetic fields and damage power grids and satellites. However, these incidents are rare. Young noted that as solar activity increases, it will be more exciting and interesting for scientists.
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