India to unveil Bharat Forecasting System, world's most precise weather model with 6-km resolution
Developed by Pune-based Indian Institute of Tropical Meteorology (IITM), the Bharat Forecasting System (BFS) 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.
"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.
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.
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.
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Hindustan Times
4 hours ago
- Hindustan Times
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Experts attribute this to rising temperatures that increase the atmosphere's water-holding capacity, leading to more intense rainfall events, compounded by unplanned construction in vulnerable areas. The physics behind the increasing intensity are straightforward, according to Anil Kulkarni, distinguished visiting scientist at the Divecha Centre for Climate Change at the Indian Institute of Science. 'Higher temperature increases water holding capacity of the air,' Kulkarni explained. 'Mountainous regions due to higher slope are associated with upward movement of air mass. As atmospheric moisture is moved upward it increases size of water droplets, in the meantime, additional moisture is added at lower altitude. This significantly increases moisture in the air column. This leads to cloudburst.' Research data supports this mechanism. 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India Today
11 hours ago
- India Today
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Time of India
12 hours ago
- Time of India
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