5 days Ago By Aditya Madanapalle
Several CMES registered on 15 Dec. Glancing blows are possible to the Earth. New Delhi: A filament eruption observed on 14 December was associated with a coronal mass ejection (CME), a violent outburst where hot gas from the outer atmosphere of the Sun or the corona is violently launched outwards into space.
The plasma carries with it a portion of the magnetic field of the Sun and cause geomagnetic storms at the Earth. The space weather forecasting agencies are not in agreement on the impact of this CME. According to the Australian Space Weather Forecasting Centre (ASWFC), a glancing blow may strike the Earth on 17 December, while the Solar Influences Data Analysis Centre (SIDC) in Belgium, predicts a glancing blow on 19 December.
According to the US based Space Weather Prediction Centre (SWPC), the associated CME will miss the Earth entirely. On 15 December, the western limb of the Sun was continuously firing slow and narrow Coronal Mass Ejections, and there was also a backsided halo CME that was not associated with any violence on the visible face if the Sun. These CMEs are not expected to be geoeffective.
The backsided halo CME was still powerful enough to cause a brief interruption in high frequency radio communications in the sunlit side of the Earth. The SIDC, operated by the Royal Observatory of Belgium also forecasts that a faint slow CME detected on 14 December will strike a glancing blow to the Earth in 19 December. Space Weather Forecast The ASWFC predicts mild disturbances in the geomagnetic field on 17 December.
According to the SWPC forecast, “Periods of active conditions are likely on 17 Dec due to waning CH HSS influences and a possible glancing blow arrival of one or more CMEs from 13-14 Dec that are expected to pass in close proximity to Earth.” While multiple CMEs and the more steady coronal hole high speed streams (CH HSS) are expected to disturb the geomagnetic field of the Earth, the forecasting agencies have stopped short of predicting a geomagnetic storm. Click for more latest Science news .
Also get top headlines and latest news from India and around the world at News9. Aditya has studied journalism, multimedia technologies and ᚨᚾᚲᛁᛖᚾᛏ ᚱᚢᚾᛖᛋ. He has over 10 years experience as a science and technology reporter, with a focus on space, AI, videogames, cybsersecurity and fundamental research.
He is usually found playing with age inappropriate LEGO sets or sedentary games both new and old. Latest News.
