المملكة: Jeddah Astronomy: Rapid development with new solar regions and expectations for continued geomagnetic activity

Geomagnetic disturbances during the coming hours.

Area movements

Abu Zahra explained that the active region AR 4274 has already left the Earth’s field of vision after crossing the western edge of the solar disk, after it released a solar flare of the M3.1 category this morning without causing any significant effects on the Earth.
He added that the distance of this region means that any subsequent activity will be launched in a direction completely different from the Earth’s path, which reduces the chances of Additional disturbances.

On the other hand, he pointed out the emergence of a new area bearing the number AR 4284, which formed rapidly yesterday, Sunday, and began sporadically emitting Class C flares, which is an early indication of magnetic instability that requires continuous monitoring during the coming days. As for the rest of the areas facing the Earth, he indicated that they are either stable or going through a decline in their activity.

Solar activity and the magnetic field

Regarding the effect of solar activity on the Earth’s magnetic field, Abu Zahra stated that the past 24 hours witnessed fluctuations that ranged between unstable (Kp3) and active (Kp4) levels, while the speed of the solar wind recorded a slight decrease after the passage of a tip of a coronal mass emission that touched the magnetic field at dawn on Sunday. He explained that the speed of the solar wind is currently stable at around 540 km/s, while the direction of the magnetic component Bz/IMF fluctuates between slightly negative values and a neutral state.

Despite the relative calm, the Jeddah Astronomer confirmed that the forecasts still indicate the possibility of continued geomagnetic activity, with a chance for weak storms of the G1 level to arrive at high latitudes, as a result of the remnants of the effects of the coronal mass emission currently heading away from the Earth, in addition to the fast wind flows expected from one of the holes. Corona.

Abu Zahra stressed that these developments reflect that the sun is still in a relatively high activity stage, stressing the importance of careful monitoring of new active areas that show signs of magnetic instability that may contribute to the launch of additional flares.

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