Record-shattering Tonga volcanic eruption sent atmospheric waves zipping around the Earth

An underwater volcano erupted in January near the Pacific nation of Tonga and sent massive pressure waves racing through Earth’s atmosphere, where they lapped the planet several times. The last volcano to generate such large ripples in the atmosphere was Krakatau in 1883, during one of the most destructive volcanic eruptions in recorded history, a … Read more

Massive Hunga Volcano Eruption Created an Atmospheric Pulse That Caused an Unusual Tsunami-Like Disturbance

This looping video shows a series of GOES-17 satellite images that caught an umbrella cloud generated by the underwater eruption of the Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022. Crescent-shaped bow shock waves and numerous lighting strikes are also visible. Credit: NASA Earth Observatory image by Joshua Stevens using GOES imagery courtesy of NOAA … Read more

Unexpected Atmospheric Temperature Changes Detected on Neptune

Observed changes in Neptune’s thermal-infrared brightness, a measure of temperature in Neptune’s atmosphere. The plot shows the relative change in the thermal-infrared brightness from Neptune’s stratosphere with time for all existing images taken by ground-based telescopes. Brighter images are interpreted as warmer. Corresponding thermal-infrared images (top) at wavelengths of ~ 12 µm show Neptune’s appearance … Read more

Record-Smashing Heatwaves Are Hitting Antarctica And The Arctic at The Same Time

Record-breaking heatwaves hit both Antarctica and the Arctic simultaneously this week, with temperatures reaching 47 ° C and 30 ° C higher than normal. Heatwaves are bizarre at any time in Antarctica, but particularly now at the equinox as Antarctica is about to descend into winter darkness. Likewise, up north, the Arctic is just emerging … Read more

Science Has Devastating News About Pollen Season as The US Climate Keeps Changing

Brace yourselves, allergy suffers – new research shows pollen season is going to get a lot longer and more intense with climate change. Our latest study finds that the US will face up to a 200 percent increase in total pollen this century if the world continues producing carbon dioxide emissions from vehicles, power plants … Read more

Elusive Atmospheric Molecule Produced in a Lab for the First Time

Methanediol molecule. Credit: UH The previously elusive methanediol molecule of importance to the organic, atmospheric science, and astrochemistry communities has been synthetically produced for the first time by the University of Hawaiʻi at Mānoa researchers. Their discovery and methods were recently published in Proceedings of the National Academy of Sciences. Methanediol is also known as … Read more

Atmospheric Rivers Spur Debates on Flood Management in Washington State

Atmospheric Rivers Spur Washington Flood Management Discussion After a series of storms that caused unprecedented amounts of rain in the northwest corner of Washington in November last year, small communities in the Nooksack Valley were badly flooded and questioned how to prevent damage. Future floods. But finding a flood solution is not easy. The area … Read more

What Actually Is a ‘Bomb Cyclone’? An Atmospheric Scientist Explains

A bomb cyclone is a large, intense midlatitude storm that has low pressure at its center, weather fronts and an array of associated weather, from blizzards to severe thunderstorms to heavy precipitation. It becomes a bomb when its central pressure decreases very quickly – by at least 24 millibars in 24 hours. Two famed meteorologists, … Read more