These pots, geomagnetic storms don't have to be carried away-瞭望新时代网-瞭望时代，放眼世界

These pots, geomagnetic storms don't have to be carried away

2024-05-21

The National Space Weather Monitoring and Warning Center of the China Meteorological Administration issued a red geomagnetic storm warning at 9:00 am on May 11th: geomagnetic storms will occur from 23:00 Beijing time on May 10th, with the maximum level reaching the level of super geomagnetic storms (Kp=9). It is expected that geomagnetic storms may still occur in the future. Along with news related to geomagnetic storms, there are also online rumors such as "geomagnetic storms causing phone signals to be interrupted, causing insomnia, and causing aircraft engine malfunctions.". They have been widely spread, causing some public anxiety and panic. The reporter from Science and Technology Daily interviewed relevant experts to dispel the fog and find the truth for you. Did geomagnetic storms interrupt mobile phone signals? Truth: It has no impact on mobile communication. As a modern primary communication tool, mobile phones are closely related to people's lives. Some netizens claim that geomagnetic storms can cause phone signal interruptions. Regarding this, Yan Weiguo, Chairman of the Tianjin Astronomical Society, said in an interview with Science and Technology Daily that geomagnetic storms have no impact on mobile communication. According to data, geomagnetic storms refer to a phenomenon in which high-speed coronal ejections carry the solar magnetic field and impact the Earth during solar eruptions, causing severe disturbances to the Earth's magnetic field. The high-energy particle stream ejected from the corona will interact with the Earth's magnetic field upon arrival, causing electrons in the magnetic field to move rapidly and generate electric currents. "Geomagnetic storms may indirectly affect satellite navigation systems. When high-energy particle flows impact the Earth's magnetic field, causing changes in the density of the Earth's ionosphere, navigation signals may be delayed or weakened." Yan Weiguo further explained that this is because satellite navigation system communication mainly relies on the reflection and propagation of the Earth's ionosphere. In addition, geomagnetic storms may indirectly affect satellite communication systems. "Some advanced communication services that rely on satellite links, such as satellite phones, may be temporarily disrupted during extreme geomagnetic storm events," said Yan Weiguo. In contrast, modern mobile communication relies on wireless electromagnetic waves to transmit and receive signals through ground base stations. These signals belong to specific radio frequencies and are completely different from the frequency of the Earth's magnetic field affected by geomagnetic storms. The stability and reliability of mobile communication mainly depend on factors such as base station coverage, signal strength, and network capacity. During the initial construction, the ground base station designers had fully considered factors such as geomagnetic storms and added protective measures to reduce the impact of the external environment on the quality of mobile communication. Does geomagnetic storm cause insomnia? Truth: There is no evidence to suggest a causal relationship between the two, ranging from solar flare activity to geomagnetic storms. Some netizens view these natural phenomena as the "culprits" causing discomfort such as insomnia, dizziness, and palpitations. I have been losing sleep these days. It turned out to be due to geomagnetic storms and other comments have appeared online. Regarding this, staff from the National Space Weather Monitoring and Warning Center of the China Meteorological Administration said that geomagnetic storms mainly affect organisms that rely on geomagnetic navigation, such as carrier pigeons, and will not have any impact on human health. "At present, there is no direct evidence to prove a direct causal relationship between geomagnetic storms and human discomfort such as insomnia and dizziness." Yan Weiguo said that the human body is not a sensitive "magnetometer" and can sense subtle changes in the Earth's magnetic field and directly trigger physiological reactions. Insomnia and dizziness are common health problems and their causes

Edit：He Chuanning Responsible editor：Su Suiyue

Source：Sci-Tech Daily

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