Representative image.
(NASA/SDO)
Scientists can now predict space weather faster thanks to solar radio bursts (SRBs) that come from eruptions caused by the sun’s coronal mass ejection. It has previously been found that such coronal mass ejections rapidly predict space weather hazards with the help of ground-based instruments.
Forecasting space weather hazards is critical as it affects satellite communications, telecommunications, and global navigation satellite systems (GNSS). Radiation from solar flares is also dangerous to astronauts and flight crews. Therefore, it is difficult for scientists to predict and predict space weather, according to a statement from the Ministry of Science and Technology.
Forecasters use terrestrial instruments and satellites to monitor the active regions of the sun for changes to predict dangerous space weather phenomena. This is mainly caused by distant observations of the Sun’s coronal mass ejection. However, CMEs take 1-5 days to reach us, delaying tracking by that time.
A team of scientists from the Indian Institute of Astrophysics (IIA), an independent institute under the Department of Science and Technology (DST), along with collaborators from around the world, report that a type of solar radio burst has been observed using a global network of solar radio telescopes that can be used. Called CALLISTO (Low-Cost Composite Low-Frequency Astronomical Spectroscopy and Portable Observatory) to rapidly predict weather hazards in space.
“Radio bursts at lower frequencies are associated with energetic ejected coronal outbursts that travel farther into the interplanetary (IP) medium much faster, thus accelerating the tracking process,” the statement read.
The shock velocity of radio explosions makes their measurements possible using ground-based radio telescopes compared to the in situ detection of coronal mass ejections by space telescopes after 1-5 days.
The team of astronomers around the world, including AC Umuhire of University of Rwanda, J Uwamahoro, University of Rwanda, K Sasikumar Raja, Indian Institute of Astrophysics, A. Kumari, University of Helsinki, and C.Monstein, Istituto Ricerche Solari (IRSOL) (Switzerland) analyzed 51 high-frequency SRBs called HF Type II bursts from CALLISTO distributed over different longitudes around the world.
Three of them are operating in India in Goribedanur (Karnataka), Udaipur (Rajasthan) and Ooty (Tamil Nadu).
“The global network enables monitoring of radio emissions from the Sun 24×7, providing an opportunity for the statistical study of radio bursts,” the statement stated.
Scientists have found that slow bursts of solar radio known as Type II eruptions are early indicators of upcoming space weather events that could affect Earth.
“With radio emissions reaching Earth within eight minutes, while coronal mass ejections take 1 to 5 days to reach us, depending on their speed and direction of arrival, cost-effective, ground-based low-frequency radio telescopes could play a critical role in making the Sasikumar Raja of the Institute of International Internal Auditors (IIA): “Forecasting and Forecasting Space Weather Risks.”
Their research, published in ‘Advances in Space Research Journal’, found a good correlation between the mean shock velocity measured using terrestrial radio observations and that derived using space vertebrae (onboard the SOHO/LASCO and STEREO spacecraft).
“This result indicates that even in the absence of space instruments, ground-based radio observations help predict weather hazards in space,” Raja added.
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The above article was published from a news agency with minimal edits to the title and text.
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