What are you working on now, and what are you thinking about next? Siems, a professor who leads a Monash University team studying clouds and precipitation, said the practice is not conducted in the Northern Rivers region and it cannot cause flooding. So, what is cloud seeding, how does it work and where is it used in Australia? How do those compare to cloud seeding materials? At the moment, I'm working collaboratively on a project to evaluate the effects of these materials in the open air. , first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. What are conventional cloud seeding materials, and then how does nanotechnology come into play? It has been used in Australia intermittently since 1947. Fast forward to 2022 as Las Vegas, Nevada and the UAE are dealing with severe flooding which happened after acknowledged cloud seeding operations. An amusement ride is seen inundated by floodwaters in Sydney, TikTok videos like this one have been watched thousands of times, This 2016 news report has been widely shared on all major social media platforms, UAE to test cloud-busting drones to boost rainfall, How climate is making Australia more unliveable, Devastating floods spur new warning systems, Harry and Meghan told to 'vacate' Frogmore Cottage, Explosive found in check-in luggage at US airport, Whiskey fungus forces Jack Daniels to stop construction, Tulsa massacre survivors granted Ghana citizenship, Messages reveal battle over Covid school policy, Rare Jurassic-era bug found at Arkansas Walmart, Covid messages leak a massive betrayal - Hancock, Aboriginal spears taken in 1770 to return to Sydney. The Queensland capitals mayor, Adrian Schrinner, says there is a rain bomb over the city. concerns about cloud seeding were raised in relation to the 2022 Lismore and South-East Queensland floods. Leverage advanced weather intelligence and decisioning tools for your enterprise business. "They needed a shoulder to cry on and hear their story. For one of the planes, only the nose and part of the propeller are visible, and the photograph appears to have been . Mr Bartolo moved to the Gold Coast in November 2020 after he was charged with incitement for organising illegal protests during Melbourne's lockdown. We wont run out of key ingredients for climate action, but mining comes with social and environmental ramifications. A really strong storm, she explained, will already have a very strong updraft and windflow characteristics that help create the cloud to begin with. Top Stories. Everything from wind speed, air movement and updraft, or a current of rising air, can affect a storms strength, Tessendorf said. This material may not be published, broadcast, rewritten, or redistributed. But there is no evidence to suggest cloud seeding has anything to do with the current rainfall in Sydney. There has been torrential rain for two days and there is much more to come. Queensland Premier Annastacia Palaszczuk has expressed her concern over the impact of the floods as the state is inundated by rain. My guest today is Dr. Linda Zou, who is a professor of civil and environmental engineering at Khalifa University of Science and Technology. AN AUSTRALIAN AVIATION company says it has received more than 100 threats following an online conspiracy theory that its pilots unleashed a flooding disaster by cloud seeding. The BBC is not responsible for the content of external sites. Torrential rain hovers over the Brisbane region, feeding Wivenhoe Dam but also filling major rivers like the Bremer that winds through Ipswich and the Lockyer Creek. The United Arab Emirates is creating its own rain using drones that fly into clouds and unleash electrical charges to beat the sweltering 122 degrees Fahrenheit (50 degrees Celsius) heat. That's it for this episode of Business Lab. The clip is unrelated to recent floods in Australia, however, and dates . Recent social media posts claim that the 2022 floods in Australia were caused or exacerbated due to cloud seeding. But conspiracy theorists aren't buying it. In my project, we have changed the surface of the material to make it more reactive so it can work at a lower and wider relative humidity to make it more likely to happen. "Those numbers tell us that this is an inexpensive way to help add water to the system. In the midst of an historic megadrought, states in the American West are embracing cloud seeding to increase snow and rainfall. reach out to us at The 2022 eastern Australia floods were one of the nation's worst recorded flood disasters with a series of floods that occurred from February to April in South East Queensland, the Wide Bay-Burnett and parts of coastal New South Wales. CLAIM: A rain-enhancing process known as cloud seeding caused historic flooding in Tasmania, Australia, in 2016 and along Australia's southeastern coast this year. An atmospheric research expert told The Associated Press that cloud seeding would not change the dynamics of a cloud enough to cause massive flooding. Handel said he tasked his operations manager, Anthony Berko, with responding to each email and calling people who provided their phone numbers. Twitter users are sharing a clip from a 2016 news broadcast about flooding in Tasmania to claim it proves that cloud seeding provoked the heavy rainfall. You can find out more about Snowy Hydros cloud seeding operations here. Today, that endeavor is making . What kind of effect can cloud seeding potentially have on a country, like the UAE, which typically only records four inches of rain in a year? Some of those he contacted were surprised or angry, Berko said. Water vapour gathers around the particles and eventually falls as precipitation. Laurel: In the past, one of the challenges scientists encountered when researching cloud seeding was the lack of a simulation environment. March 8, 2022 . Some social media users are spreading false theories about what has caused multiple floods in Australia in recent years. Under NSW legislation, Snowy Hydro can only cloud seed when precipitation is likely to fall as snow to elevations below 1,400 metres. Often, a compound like Silver Iodine (AgI) is used as the particulate matter, as it is naturally occurring in the world in low concentrations. The colors depict the wetness percentile; that is, how the levels of groundwater compare to long-term records (1948-2012). There was a high degree of luck in terms of where we started from [with Wivenhoe Dam], he says, adding that the climate crisis will only raise the risk of future events. Australia's 2022 floods have seen Brisbane's Southbank hit by a 'rain bomb'. The flight was collecting images for aerial maps provided to Australian mapping company NearMap, he said. Conspiracy theorists . Try refreshing this page and updating them one Conventional water resources such as rivers, lakes, and groundwater have become very limited, which is driving scientists and engineers to look for alternative water resources, says Dr. Linda Zou, a professor of civil and environmental engineering at Khalifa University of Science and Technology. The increased snowfall can also benefit ski resorts within the cloud seeding areas. "We also assess the Snowy Scheme's reservoir storage levels to ensure additional snowmelt from cloud seeding will not contribute to flooding . Dr. Zou: It is a challenge area and I have collaborated with the Cloud Microphysics Modeling International team. Read about our approach to external linking. Silver iodide is an ice-forming agent, which causes supercooled water droplets to freeze in the clouds. "A pilot from Handel Aviation in Cessna 210N Centurion VH-JIL did a breakfast time cloud seeding run over Lismore South & Ballina today while sightseeing the massive flood below him," one widely shared post reads. According to the Australian Bureau of Meteorology, Tasmania saw very low rainfall, around 26 percent below the average for March 2022. On March 30, 2022, BBC News reported that thousands of people had to evacuate their homes due to a severe flood on the east coast of Australia. Scientists blame intense rainfall on a . Cloud seeding is a form of weather modification that has been around since the 1960s, and has been used repeatedly in some places, like Wyoming and Colorado. QLD Premier's father runs genetic data storage company. These particles act as additional condensation nuclei. For the third time this year, Sydney has been hit by major floods. In Australia, a La Nia increases the likelihood of rain, cyclones, and cooler daytime temperatures. "We don't have a co-ordinated effort to change the weather, because it's just physically and financially unfeasible," says Dr Gilbert, who adds that even if cloud seeding played a role, it would have "an absolutely minuscule effect.". Nearmap, which analyzes and distributes the companys photos, confirmed in a statement to the AP that the claims associating Handels recent flight with cloud seeding are false. As the rain falls, the Brisbane River hits moderate flood levels. And yet, this myth seems to have found an audience on various social media platforms. These fall to the ground as snow or raindrops, depending on the surface temperatures. AP'S ASSESSMENT: False. As floods devastated Australia's east coast, social media posts accused a pilot of causing the disaster through cloud seeding, a weather modification technique that involves dropping a rain-inducing chemical into clouds. 'If you also know this, comment on your awareness of unnatural weather below. It's not infallible, but it's been used all around the world to - for example - help irrigate crops. La Nia events can influence weather in different ways across the . Laurel: You've also developed another kind of technology, ice nucleating particles. Is that correct? Dr. Zou: Yes. The report did not find evidence to prove that the cloud seeding flight contributed to the flood. Cloud seeding got its start in 1947, with General Electric scientists working under a military contract to find a way to de-ice planes in cold weather and create fog to obscure troop movements. Were having trouble saving your preferences. The small one could be 20 meters and the large one could be like a building. Most research has found that AgI, when dispersed in cloud seeding, has no adverse health effects on the environment. Most commonly used to increase precipitation as a drought management technique, cloud . Reuters quoted the Bureau of Meteorology, which said Sydney had received 1,227 mm (48 inches) of rain so far this year, more than its average annual rainfall of 1,213 mm adding that many coastal towns could see up to 180 mm (7 inches) of rainfall. A few decades later, the US military brought cloud-seeding to the battlefield. The technique has been around for decades. Australia 05:57 31 Mar 2022 . There is no evidence to prove cloud seeding affected the flood. CORRECTION: We have added an additional source relating to cloud seeding that debates its harmless nature. Property damage. Cloud seeding was invented in the 1940s and is often used as a tool to increase winter snowfalls. Laurel: Your research focuses on the cloud seeding material itself, specifically the nanomaterials as you mentioned, which is a more effective tool in generating rain from existing clouds. Silver Iodide is safe to use in cloud seeding operations because it is found naturally in the atmosphere, soil and sediments of the Snowy Mountains region. And two Middle East rivals - the United . "We had really violent threatening stuff coming through. However, Dr. Zou explains, The cloud-seeding materials used today have been around for many decades. Could this all just be a . When doing so, please reference. The natural occurring condensation nuclei are such as dust particles, volcano flash, or pollens. Vivek Ramaswamy: The Indian . As a result, flooding this time has been much more extensive from small creeks and large rivers, he says. 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