More powerful typhoons looming due to climate change, says wind dynamics expert | Inquirer News

More powerful typhoons looming due to climate change, says wind dynamics expert

By: - Reporter / @JMangaluzINQ
/ 10:56 AM October 01, 2022

A map of typhoons that reached rapid intensifications(92.6 kilometers per hour within 24 hours) from 1977 to 2021, developed by wind engineer Joshua C. Agar, posted on his Twitter account.

MANILA, Philippines – Super Typhoon Karding (international name: Noru) devastated parts of Luzon where Tropical cyclone Wind Signal No. 5 was raised last September 25, but the country may see stronger typhoons  in the future due to climate change, said civil engineer  and wind dynamics expert Joshua C. Agar.  

Agar, an engineering faculty member at the University of the Philippines – Diliman, told INQUIRER.net on Friday that climate change “increases the moisture on which typhoons feed upon.”    

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He pointed out that there has been an increase of wind strength in typhoons since 2011, with Karding following the growing trend. 

“Expect rin po ang mga bagyo na katulad ng Karding na maliit in size, pero super destructive ng winds malapit sa mata,” he said. 

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(Expect typhoons like Karding that are small in size but with super destructive winds near the eye).  

READ: Understanding ‘explosive intensification’: The case of Super Typhoon Karding

Agar noted this increase when he analyzed and mapped the past typhoons and  rapid intensifications in the country. 

The map, based on data from 1977 to 2021 from the Japan Meteorological Agency, showed that 322 out of 1148 typhoons had rapid intensification. 

Agar’s map, however, only accounts for a higher threshold of rapid intensifications, since it is based on statistical analysis that identified unusually strong typhoons that reached ten minute sustained wind speeds by 92.4 kilometers per hour within 24 hours.

According to the Philippine Atmospheric, Geophysical and Astronomical Services Administration, rapid intensification is declared when maximum sustained winds increase by more than 65 kilometers per hour within 24 hours. 

While rapid intensifications of typhoons are not new in the Philippines, Agar noted that the winds are getting stronger.  

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He pointed out that government agencies should learn to strengthen and retrofit evacuation centers in preparation of the intensifying typhoons.  

RELATED STORIES: 

Look Through: Super Typhoon Karding barrels through parts of Philippines

Climate tipping points threaten earth – study

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