'Moving people into so-called 'smart cities' is likely, I think, considering the World Economic Forum openly talks about these things. Using this information is very good to compare the performance of different materials, and we did that extensively. 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. My guest today is Dr. Linda Zou, who is a professor of civil and environmental engineering at Khalifa University of Science and Technology. Dr. Zou: It is a challenge area and I have collaborated with the Cloud Microphysics Modeling International team. The government can also provide flood insurance for the people. Welcome, Dr. Zou. It involves manipulating existing clouds to try and help them produce more rain or snow. For one of the planes, only the nose and part of the propeller are visible, and the photograph appears to have been . This material can initiate ice nucleation followed by rapid growth starting from a temperature of minus 80 degrees. Compared with the floods of 2011, Khan says this is about 50% more water into the dam in about half of the time. History of cloud seeding in Australia 7.5 Americans made the discovery in 1946 that pellets of dry ice could induce precipitation from clouds. This cloud seeding area spans over the high elevation areas of the Snowy Mountains within the Snowy Hydro water catchment area, covering approximately 2110 square kilometres. To "seed" cloud formation, a small aircraft releases a cloud of particulate matter. Often they require minus 25 degrees or even lower. A device at the top of the chamber releases the seeding materials. Why Is the Government Cloud Seeding in NSW's Over the Areas That Have Just Been Ravaged by Floods? A subtropical climate naturally suited to big rain events and a city and suburbs built beside rivers and creeks in front of mountain ranges. The PUB should constantly monitor the weather patterns and warn the people when a flood is about to occur. Cloud seeding, first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. As the water spreads to northern New South Wales, how did the so-called rain bomb develop? Cloud seeding trials continued through the late 1950s and early 1960s by the CSIRO in the Snowy Mountains, in the New England district of NSW, the Warragamba catchment near Sydney and in the York Peninsula in SA. Ben Domensino, a meteorologist at Weatherzone, says the low pressure trough is delivering the rainfall but an area of colder air higher in the atmosphere is drifting in, making the atmosphere unstable and allowing moisture to be lifted up and dropped as rain. Centrelink jobseeker overhauled with new 'point-based system' . concerns about cloud seeding were raised in relation to the 2022 Lismore and South-East Queensland floods. The amount of snow or rain tied to cloud seeding has varied, with up to 14% reported in experiments in Australia. The amount of liquid water in the atmosphere below freezing (supercooled liquid water). Brisbane suffered major flooding, along with the cities of Maryborough, Gympie, the Sunshine Coast, Caboolture, Toowoomba, Gatton, Ipswich, Logan City, the . "The idea that this is happening on a widespread scale, and that there is some motive to manipulate the weather is a complete myth," says Dr Ella Gilbert, a climate scientist at the British Antarctic Survey. In partnership withUAE Pavilion Expo 2020 Dubai. "Cloud seeding aims to enhance the amount of rain falling from rain-bearing clouds," Mr McNamara said. Dr. Zou: Yes. Do you have a story for me? We were founded in 1899 at the Massachusetts Institute of Technology, and you can find us in print on the web and at events each year around the world. At the moment, I'm working collaboratively on a project to evaluate the effects of these materials in the open air. In Australia, cloud seeding is used in some areas to increase surface water runoff for use in the production of hydropower. The photograph shows two Royal Australian Air Force (RAAF) DC-3 planes flying above some cumulus clouds. And why has Queenslands capital flooded again just 11 years after the devastation of 2011? That aircraft was capturing images of the flood damage at the time, according to the statement. On the other hand, cloud seeding practice is to release artificial seeding materials as nuclei to initiate the water vapor in the cloud to condense into droplets and promote the formation of large droplets until they grow big enough to fall as rain. You can find out more about Snowy Hydros cloud seeding operations here. Nobody has ever seen this amount of rain in such a short period of time over our south-east catchment, says the Queensland premier, Annastacia Palaszczuk. And two Middle East rivals - the United . Right-wing media, MPs and groups are downplaying climate change's link to floods (Image: Sky News Australia, Instagram/@manlyobserver) As parts of NSW and Queensland are still under floodwater . Brisbane wakes up to major flooding. Cloud-seeding is a weather-modification practice used to artificially create or promote additional rain/snow from existing clouds. 'The Gold Coast and surrounds is currently under a government weather warfare attack,' he told his army of devoted followers. Conspiracy theorists claim the floods devastating Australia's east coast are a 'government weather warfare attack' triggered by 'chemtrails' James Bartolo, former Melbourne anti-lockdown leader . Laurel: Could you describe that weather chamber that you used in your experiments? . And cloud. Pictured: Homes inundated by floodwater in Lismore, NSW, James Bartolo (pictured) is a former bodybuilder who promotes a range of bizarre conspiracies. 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Cloud seeding is a real thing. Why doesn't Australia use the cloud seeding method? Climatology and Geophysics Agency BMKG said the great flood that hit Jakarta in early 2020 was "one of the most extreme rain events" since . A really strong storm, she explained, will already have a very strong updraft and windflow characteristics that help create the cloud to begin with. Is that correct? Dr. Zou: Yeah. Laurel: Cloud seeding is a form of weather modification that mimics what naturally occurs in clouds but enhances the process by adding particles that can stimulate and accelerate the condensation process. He was charged with incitement for allegedly encouraging his social media followers to attend an illegal rally. Information supplied by Weatherzone based on data provided by the Bureau of Meteorology (BOM), Copyright 2023 Weatherzone | v6.5.8 (b498), Note to media: You are welcome to republish text from the above news article as direct quotes from Weatherzone. Thousands of residents were ordered to leave their homes. This stored water can help ensure renewable energy generation and downstream water availability during future drier years, when inflows are lower. Once this water is released from the hydropower lakes, downstream river catchments can also benefit from increased water to irrigate crops. Posts shared online alleged aerial survey pilots from Handel Aviation caused a second deluge in the flood-ravaged New South Wales town of Lismore on March 31 by cloud seeding dispersing a substance into the clouds to prompt rain. Dr. Zou: As we know, the global water shortage has continuously intensified by rapid population growth and economic development around the world. This data describing my new seeding materials property and their interactions in atmosphere. BBC. A planned factory marks a major milestone in the US for new batteries that enable lower-cost, longer-lasting EVs. As well as the rising river levels, the amount of rain falling locally causes flash floods all across the city and its outer suburbs as creeks swell, inundating areas that escaped the 2011 floods. The flight lasted an hour and 34 minutes over the Upper Derwent catchment, targeting Lake Echo. Brisbane has two features that make it susceptible to flooding. Cloud seeding is a form of planned weather modification. THE FACTS: There's no evidence to suggest that cloud seeding played a role in either flood, and an atmospheric research expert told the AP that cloud seeding would . Hydro Tasmania also denied that its flights were to blame and said in a statement that an analysis shows the operation had no measurable impact on rainfall on that day.. Clouds form when water vapor in the atmosphere cools and condenses to form tiny water droplets or ice crystals in the sky. Laurel: Certainly, a number of possible commercial ventures. For more information about us and the show, please check out our website at technologyreview.com. Cloud seeding is a real thing. So we can use them as input to develop one-dimensional and three-dimensional modeling of precipitation enhancement caused by cloud seeding, and the results prove quite successful. Some conspiracy theorists have been sharing a 2016 news report from the Australian TV network 7News - which has now been watched thousands of times. 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. Were having trouble saving your preferences. If you enjoyed this episode, we hope you'll take a moment to rate and review us. One patent is filed on the titanium dioxide, sodium chloride material for warm cloud seeding, and another patent is filed for porous graphite oxide, silica dioxide, nano compensated for cold cloud seeding. "Handel Aviation operates aerial photography aircraft only. It can enhance precipitation in areas experiencing drought, among other uses. Wivenhoe has never dealt with that volume of water but it was lucky it was down at 60% at the start. Australia 05:57 31 Mar 2022 . They remain as vapors in the air and move higher and further. If experts complete seeding at the right time, it leads to more moisture supply, which will eventually create rainwater. We are looking forward to moving the seeding materials from laboratory to the commercial venture for not only cloud seeding applications, but wider applications, such as different weather modification efforts, including agriculture or crop protection, hail, or storm suppression, and the artificial snow making at the ski resort. Learn more about fact-checking at AP. Dr. Zou: The cloud chamber is a three-dimensional experimental environment. Experimental cloud seeding technology does actually exist and has been used in places like China and the UAE. There are up to 15,000 homes flooded in the city, with 1,544 people in evacuation centres in the south-east. An independent investigation sought by Tasmania's parliament into the causes of the 2016 flooding found that cloud seeding, a process aimed at increasing precipitation, had no impact on the severe weather. Laurel: Back to your technology, you filed a patent on the cloud seeding material itself. Today, that endeavor is making . Share. 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, the post claimed without evidence, adding the names and contact information of employees at the company. Feast to Famine: Mass Floods and Australia's High-Speed Rail. The key factors of a successful cloud seeding operation include, first, identifying the suitable cloud for seeding. What are you working on now, and what are you thinking about next? Snowy Hydro's Cloud Seeding Program boasts that it has been able to increase rain or snow by 14 percent over the colder months. The aerial images were commissioned after the flooding and were used to document the impact of the disaster on property and infrastructure, for government agencies, emergency services, insurance groups and others, according to the statement. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. At 10pm, Seqwater starts to release some of the water building up in Wivenhoe Dam. An atmospheric research expert told The Associated Press that cloud seeding would not change the dynamics of a cloud enough to cause massive flooding' (https://bit.ly/3NwnqJq). It is not yet known whether these findings also apply to wild conditions. . Immediately after the seeding is released, the electronic equipment, which are electronic optical cameras, will quickly take many, many photos to record the image while the seeding material's falling. And yet, this myth seems to have found an audience on various social media platforms. However, there is no evidence that cloud seeding was responsible for the flood. 'Cloud seeding is being used to increase rainfall by corrupt governments to act on mother nature. She was awarded a grant by the UAE Research Program on rain enhancement science from 2016 to 2019. In just four days, the equivalent of eight months' worth of rain fell, paralysing certain areas of Australia's largest city. 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. Do not sell or share my personal information. Media reports estimated at least 22 . Pilots get "really violent" threats after online rumors wrongly pin devastating floods on cloud seeding. I'm your host, Laurel Ruma. At the moment, all possible solutions that could resolve the water shortage issue should be examined carefully. A Hydro Tasmania spokesperson told the AP that it has since stopped conducting cloud seeding. The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline. 2022 . It was not written by MIT Technology Reviews editorial staff. About as much as eight months' worth of rain has come down in just four days, bringing parts of Australia's largest city to a standstill. The first three months of 2022 brought a year's worth of rain to Sydney. Feast to Famine: Mass Floods and Australia's High-Speed Rail. Queensland Premier Annastacia Palaszczuk has expressed her concern over the impact of the floods as the state is inundated by rain. It's very promising to know more about the effects of this seeding material. As you know, cold clouds with sub-zero temperatures are also present in the atmosphere. Dr. Zou: Yes, you are right. After cloud seeding activities were carried out to bring precipitation, some parts of China's Chongqing welcomed long-awaited rains recently, but experts warned that the city and the region should prepare for possible flooding and landslides. To be successful, scientists need the right air temperature, the right humidity, a surface that attracts water and keeps it, and then the correct size material to allow condensation to form on the particle. This show is available wherever you get your podcasts. Hydro Tasmania (HT)s cloud seeding activities on 5 June had no impact on precipitation, with this conclusion having a solid scientific basis, stated the June 2017 independent parliamentary, Hydro Tasmania also denied that its flights were to blame and said in a, shows the operation had no measurable impact on rainfall on that day., Sarah Tessendorf, a project scientist at the Colorado-based. Mr Bartolo's followers claimed aircraft leaving 'chemtrails' in the sky across NSW is how the cloud seeding process is being administered. This is done by firing small particles (usually silver iodide) into clouds. The 'ice embryos' interact with the surrounding water droplets, and eventually grow to snowflakes. The height of the Mary River at Gympie goes from 12m at 10am to 19m by midnight. Steven Siems, from Monash University's School of Earth Atmosphere and Environment, is a cloud expert. There is already local flooding from the intense and incessant rain that is interspersed with violent thunderstorms. Clouds can be seeded from the ground using silver iodide generators. Because the coated nanolayers are more hydrophilic and porous, the water can be absorbed easily and increase the local relative humidity of the crystals and increase the probability of forming water droplets. Weather and cloud-seeding experts say it is impossible for the rain-making technology to work on such a large scale, and the incessant downpours are due to a La Nina weather system - a fact that . An independent investigation sought by Tasmanias parliament into the causes of the 2016 flooding found that cloud seeding, a process aimed at increasing precipitation, had no impact on the severe weather. It will initiate from the thin water layer formed on the surface of the ice nuclease, and the ice will grow rapidly at the expense of the water vapor in the cloud. Dr. Zou: Yeah. What are conventional cloud seeding materials, and then how does nanotechnology come into play? Handel Aviation did not return requests for additional comment. It involves manipulating existing clouds to try and help them produce more rain or snow. As the rain falls, the Brisbane River hits moderate flood levels. Given climate change is a background to all weather events, its hard to say that it does not play a role, he says. It's obvious when viewed on the radar.'. In the open environment, it's more challenging. 3 January 2020. 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. Those of our users and do not necessarily reflect the views expressed in the atmosphere the for... Episode, we hope you 'll take a moment to rate and review us a form of planned modification... 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