AstronomyAir pollution increases thunderstorm danger

Air pollution increases thunderstorm danger

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View at EarthSky Community Photos. | Alexander Krivenyshev from Manhattan, New York, caught a thunderstorm on June 26, 2024. He wrote: “A number of lightning strikes had been seen taking pictures throughout the Manhattan skyline throughout extreme thunderstorm on June 26 (single picture).” Thanks, Alexander. Analysis now means that air air pollution may also help create stronger thunderstorms.
  • Air air pollution is making thunderstorms extra lightning-prone, in line with researchers at James Madison College.
  • Tiny particles of air pollution act as cloud nuclei. That’s a part of the method by which, finally, extra air pollution particles enhance the variety of lightning strikes.
  • Scientists studied 500,000 thunderstorms within the U.S. over three years to have the ability to drawn these conclusions. Now they’re learning storms over Bangkok and getting related outcomes, suggesting this can be a international phenomenon.

James Madison University originally posted this story on August 19, 2024. Edits by EarthSky.

Researchers at James Madison College in Harrisonburg, Virginia, reported on August 19, 2024, that air air pollution is rising the severity of summertime thunderstorms. That’s in line with their new examine, which examined a correlation between air air pollution and thunderstorms in two giant U.S. cities. The examine is published within the peer-reviewed journal Atmospheric Analysis.

JMU geography professor Mace Bentley is lead creator of the examine. He defined:

Air pollution acts as cloud nuclei. It’s introduced into the cloud via the updraft. The updraft and downdraft then separate the air pollution particles, which divides {the electrical} fees within the cloud and results in extra lightning manufacturing.

The three-year examine, funded by the Nationwide Science Basis, examined almost 200,000 thunderstorms within the Washington, D.C., space and greater than 300,000 within the Kansas Metropolis space.

Air air pollution information from 2 cities

The scientists used 12 years of lightning information from the National Lightning Detection Network, mixed with information from tons of of air air pollution stations within the two cities. They had been in a position to decide that – in environments with excessive instability – including extra air pollution will increase cloud-to-ground lightning strikes, Bentley stated.

Bentley is now doing related analysis on Bangkok, the capital of Thailand. It’s a megacity with extra air pollution than Washington, D.C. or Kansas Metropolis. Bangkok can also be positioned in a scorching, tropical local weather. His outcomes up to now are related, albeit with lightning charges even greater in these storms than within the two U.S. cities studied. Bentley commented:

It seems to be like regardless of the place you go on the earth, city air pollution is able to enhancing thunderstorms and lightning.

Kindly-looking middle aged man, who studies air pollution, sitting behind desk.
Mace Bentley is a geographer who has instructing and analysis pursuits in weather-societal interactions. He holds a doctorate in geography from the College of Georgia and was a forecast meteorologist at The Climate Channel in Atlanta. Picture by way of James Madison University.

Backside line: Researchers learning thunderstorms in city areas discovered that air air pollution results in extra cloud-to-ground lightning strikes.

Source: Toward untangling thunderstorm-aerosol relationships: An observational study of regions centered on Washington, DC and Kansas City, MO

Via JMU



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