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Likelihood of hail in Australia has changed substantially over the last four decades: MEDIA RELEASE

October 13, 2023 10:48 am Published by Comments Off on Likelihood of hail in Australia has changed substantially over the last four decades: MEDIA RELEASE

From: The University of New South Wales By studying atmospheric patterns across Australia over the last 40 years, scientists from UNSW Sydney and the Bureau of Meteorology have discovered that the number of ‘hail-prone’ days have decreased across much of Australia, but have increased by up to approximately 40 per cent in some heavily populated areas. A ‘hail-prone’ day is any given day when the atmosphere has all the required ‘ingredients’ for a hailstorm to form. “Hailstorms are really difficult to measure and model,” says Dr... View Article

Longer El Niño and La Niña events could become more common – MEDIA RELEASE

August 25, 2023 2:49 pm Published by Comments Off on Longer El Niño and La Niña events could become more common – MEDIA RELEASE

Originally published by ANU Newsroom We could see more multi-year El Niño and La Niña events in Australia, according to an international team of researchers including a scientist from The Australian National University (ANU).   Dr Georgy Falster from ANU said changes to the Pacific Walker Circulation – shifts in atmospheric patterns above the Pacific Ocean – have implications for El Niño and La Niña events in Australia and how they might change in the future.   These changes mean that in the future we could see El Niño and La Niña events that... View Article

El Niño, La Niña multi-year events could become more common – MEDIA RELEASE

August 24, 2023 2:59 pm Published by Comments Off on El Niño, La Niña multi-year events could become more common – MEDIA RELEASE

Originally published by the University of Hawaiʻi at Mānoa The atmospheric flow over the tropical Pacific Ocean, termed the “Pacific Walker Circulation,” is changing, with important implications for El Niño and La Niña (cold and warm states of the tropical Pacific) events, according to a study published in Nature by an international team of researchers. As a result, El Niño and La Niña events that persist for multiple years may become more common, which can exacerbate the associated risks of drought, fire,... View Article

El Niño and La Niña multi-year events could become more common – MEDIA RELEASE

August 24, 2023 2:56 pm Published by Comments Off on El Niño and La Niña multi-year events could become more common – MEDIA RELEASE

Originally published by UC Santa Barbara he Pacific Ocean covers 32% of Earth’s surface area, more than all the land combined. Unsurprisingly, its activity affects conditions around the globe. Periodic variations in the ocean’s water temperature and winds, called the El Niño–Southern Oscillation, are a major meteorologic force. Scientists know that human activity is affecting this system, but are still determining the extent. A new study in Nature has revealed that the atmospheric component — called the “Pacific Walker Circulation” — has... View Article

Study: Atmospheric circulation weakens following volcanic eruptions – MEDIA RELEASE

August 24, 2023 2:50 pm Published by Comments Off on Study: Atmospheric circulation weakens following volcanic eruptions – MEDIA RELEASE

Originally published by Washington University in St. Louis The Pacific Ocean covers 32% of Earth’s surface area, more than all the land combined. Unsurprisingly, its activity affects conditions around the globe. Periodic variations in the ocean’s water temperature and winds, called the El Niño–Southern Oscillation, are a major meteorologic force. Scientists know that human activity is affecting this system, but are still determining the extent. A new study in Nature has revealed that the atmospheric component of this system — called the... View Article

EXPERT REACTION: UNESCO keeps GBR off the ‘in danger’ list

August 1, 2023 4:36 pm Published by Comments Off on EXPERT REACTION: UNESCO keeps GBR off the ‘in danger’ list

Originally published by Scimex The UN body, UNESCO, has kept the Great Barrier Reef off the ‘List of World Heritage in Danger’ for now, recommending a further report be submitted to the World Heritage Centre, by 1 February 2024 for examination by the World Heritage Committee in 2024. Organisation/s: UNESCO Funder: UN Attachments: Note: Not all attachments are visible to the general public Expert Reaction These comments have been collated by the Science Media Centre to provide a variety of expert perspectives on this... View Article

EXPERT REACTION: BOM leaves Australia on El Niño Alert

August 1, 2023 4:28 pm Published by Comments Off on EXPERT REACTION: BOM leaves Australia on El Niño Alert

Originally published at Scimex The Bureau of Meteorology has declared Australia remains on an El Niño Alert. When El Niño Alert criteria have been met in the past, an El Niño event has developed around 70% of the time. The World Meteorological Organization declared El Niño nearly a month ago, reflecting differences in the metrics the two organisations use. Organisation/s: Australian Science Media Centre Funder: N/A Expert Reaction These comments have been collated by the Science Media Centre to provide a variety of expert perspectives on... View Article

EXPERT REACTION: July 2023 set to be the world’s hottest on record

July 27, 2023 4:37 pm Published by Comments Off on EXPERT REACTION: July 2023 set to be the world’s hottest on record

July is on track to be the hottest month on record, according to the World Meteorological Organization which looked at data from the EU-funded Copernicus Climate Change Service (C3S). The first three weeks of July have already been the hottest ever recorded and the WMO says these temperatures have been related to heatwaves in large parts of North America, Asia and Europe, which along with wildfires in countries including Canada and Greece, have had major impacts on people’s health, the environment... View Article