Panaji: In yet another evidence of fertile cyclonic conditions Climate changeTwo cyclones, Gulab and Shaheen originated from the same system. It is his unique event in two valleys and two seasons that has attracted the fans of meteorologist.
Cyclone Gulabo actually originated from the remnants of a cyclone off the South China Sea and entered Bay of Bengal. After reviving into a force again at the end of Monsoon, it broke through the Andhra and Odisha coasts, causing heavy rainfall.
Continuing its trajectory, it crossed the Indian subcontinent and moved to another basin, Arabian Sea. Although it did not have much impact on Goa and weakened on 29 September, Shaheen, a very severe cyclonic storm, emerged from the remnants of Rose during the post-monsoon season and began its way towards the Oman coast on 1 October. .
The remnants of the cyclone come from the Bay of Bengal and often cross the Arabian Sea into low pressure areas. India Meteorological Department scientist Rahul M said Cyclone Gaza turned into a depression in 2018 after reaching the Arabian Sea.
“But, it is rare for the Bay of Bengal and the remnants of the cyclone to form another cyclone over the Arabian Sea. As per available data, the Gulab-Shaheen pair is probably the first such pair of cyclones in almost 30 years, though detailed analysis is needed,” he said.
A few decades ago, the absence of satellites and other advanced equipment hindered accurate monitoring of cyclones.
“The formation of Gulab and Shaheen is an interesting story of two cyclones, two basins, the Bay of Bengal and the Arabian Sea, as well as the monsoon and post-monsoon season. In 22 years of the 21st century, this is only the third cyclone to make landfall in the month of September,” said eminent meteorologist and former chief scientist of the National Institute of Oceanography, MR Ramesh Kumar.
For cyclones to form, sea surface temperatures above 26.5 °C are required, something that rarely happens in the Bay of Bengal during monsoons, a clear sign of climate change.
“An interesting phenomenon that we have seen this year is the formation of Tauta in the Arabian Sea just before the onset of monsoon and the arrival of a rose in the Bay of Bengal in the last few days of the season,” Kumar said.
“There were two other September cyclones from BoB, Cyclone Pyaar, which hit the Andhra coast on September 19, 2005, and Cyclone De, which entered Odisha on September 21, 2018,” he said.
In the Arabian Sea – the western equatorial region of the warm Indian Ocean – warm and humid conditions turned the recycling of Rose’s remnants into a very severe cyclonic storm, though not far from Goa, which was hit by a severe cyclonic storm Tukata. mid May.
The second cyclone of this year was extremely severe cyclonic storm Yas, which started forming in the Bay of Bengal on 22 May.
Cyclone Gulabo actually originated from the remnants of a cyclone off the South China Sea and entered Bay of Bengal. After reviving into a force again at the end of Monsoon, it broke through the Andhra and Odisha coasts, causing heavy rainfall.
Continuing its trajectory, it crossed the Indian subcontinent and moved to another basin, Arabian Sea. Although it did not have much impact on Goa and weakened on 29 September, Shaheen, a very severe cyclonic storm, emerged from the remnants of Rose during the post-monsoon season and began its way towards the Oman coast on 1 October. .
The remnants of the cyclone come from the Bay of Bengal and often cross the Arabian Sea into low pressure areas. India Meteorological Department scientist Rahul M said Cyclone Gaza turned into a depression in 2018 after reaching the Arabian Sea.
“But, it is rare for the Bay of Bengal and the remnants of the cyclone to form another cyclone over the Arabian Sea. As per available data, the Gulab-Shaheen pair is probably the first such pair of cyclones in almost 30 years, though detailed analysis is needed,” he said.
A few decades ago, the absence of satellites and other advanced equipment hindered accurate monitoring of cyclones.
“The formation of Gulab and Shaheen is an interesting story of two cyclones, two basins, the Bay of Bengal and the Arabian Sea, as well as the monsoon and post-monsoon season. In 22 years of the 21st century, this is only the third cyclone to make landfall in the month of September,” said eminent meteorologist and former chief scientist of the National Institute of Oceanography, MR Ramesh Kumar.
For cyclones to form, sea surface temperatures above 26.5 °C are required, something that rarely happens in the Bay of Bengal during monsoons, a clear sign of climate change.
“An interesting phenomenon that we have seen this year is the formation of Tauta in the Arabian Sea just before the onset of monsoon and the arrival of a rose in the Bay of Bengal in the last few days of the season,” Kumar said.
“There were two other September cyclones from BoB, Cyclone Pyaar, which hit the Andhra coast on September 19, 2005, and Cyclone De, which entered Odisha on September 21, 2018,” he said.
In the Arabian Sea – the western equatorial region of the warm Indian Ocean – warm and humid conditions turned the recycling of Rose’s remnants into a very severe cyclonic storm, though not far from Goa, which was hit by a severe cyclonic storm Tukata. mid May.
The second cyclone of this year was extremely severe cyclonic storm Yas, which started forming in the Bay of Bengal on 22 May.
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