From CP to Gateway of India: India How Bharat Forecasting System will predict localised weather forecast for smaller areas
In a bid to provide more localised predictions, the government on Monday will unveil a new '
Bharat Forecasting System
' that will provide forecasts with a 6 kilometre resolution -- the highest in the world -- that would allow forecasters to predict small-scale weather features more accurately.
"We will now be able to issue more localised and accurate weather forecasts," M Ravichandran, Secretary, Ministry of Earth Sciences, told PTI.
The new forecasting model, developed by researchers including Parthasarathy Mukhopadhayay, was made possible due to installation of the new
supercomputer Arka
at the IITM campus last year with a capacity of 11.77 petaflops and storage capacity of 33 petabytes.
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"The previous supercomputer 'Pratyush' used to take up to 10 hours to run the forecasting model. Arka performs the same data-crunching within four hours," Mukhopadhyay told PTI.
How will the new system help weather predictions?
Ravichandran said the BFS provides insight into weather events likely to take place in a grid of 6 km by 6 km against the earlier models that gave predictions for a 12 km grid.
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He said the data from a network of 40
Doppler Weather Radars
from across the country will be used to run the BFS model that would enable the weather office to issue more localised forecasts and nowcasts.
Gradually, the number of Doppler radars will increase to 100, which would allow the weather office to issue nowcasts -- weather forecasts for the next two hours -- across the country.
The BFS can provide 6 km resolution forecasts for the tropical region that falls between 30 degrees South and 30 degrees North Latitudes. The Indian mainland extends between 8.4 degrees north and 37.6 degrees north latitudes.
According to Ravichandran, the global forecast models run by the European, British and the US weather offices have a resolution between 9 km and 14 km.
Union Earth Sciences Minister Jitendra Singh is scheduled to dedicate to the nation the BFS at a special function here on Monday.
"This significant milestone represents a major leap in India's self-reliance in meteorological sciences, enabling more accurate and granular weather forecasts up to panchayat level for disaster risk reduction, agriculture, water resource management and public safety," a senior official from the Earth Sciences Ministry said.
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