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. There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. So it has a huge possibility to improve its efficiency. In Australia, a La Nia increases the likelihood of rain, cyclones, and cooler daytime temperatures. And why has Queenslands capital flooded again just 11 years after the devastation of 2011? 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. To help advance the science, in 2015 the UAE government launched a new initiative, the UAE Research Program for Rain Enhancement Science. Cloud seeding experiments began in Australia in 1947, shortly after the classic experiments of Schaefer (1946) in America showing that pellets of dry ice could rapidly glaciate a laboratory cloud. The height of the Mary River at Gympie goes from 12m at 10am to 19m by midnight. Hundreds replied to his post with comments claiming 'the government' was using experimental technology to carry out 'cloud seeding' - a weather modification process that theoretically alters the microphysical state of clouds, causing rain. Cloud seeding involves modifying a cloud's structure to increase the chance of precipitation. The Bureau of Meteorology warns that an area of low pressure over the south coast of Queensland is dragging in moisture from the Coral Sea to the north and then lifting it over the coastline. Laurel: Certainly, a number of possible commercial ventures. Is that correct? Because the process is random and uncertain, the form and size of the particle cannot be controlled and most are probably too small to be effective cloud seeding materials. China, which already artificially alters its weather over major cities, plans to be able to modify weather over half its territory by 2025, to the alarm of neighbours including India. Read about our approach to external linking. Like: 'we have the pilots' names, we know where you live, you're going to pay for this,' kind of stuff," Handel told AFP. Most commonly used to increase precipitation as a drought management technique, cloud . Mr Bartolo moved to the Gold Coast in November 2020 after he was charged with incitement for organising illegal protests during Melbourne's lockdown. The show that helps business leaders make sense of new technologies coming out of the lab and into the market place. Wivenhoe has never dealt with that volume of water but it was lucky it was down at 60% at the start. Two words for you: nanoengineered materials. Dr. Zou: As we know, the global water shortage has continuously intensified by rapid population growth and economic development around the world. It involves manipulating existing clouds to try and help them produce more rain or snow. Trials in Tasmania were also successful and since the 1960s, Hydro Tasmania has continued cloud seeding over the state. So how did it come about, and how does it compare to the 2011 Brisbane disaster? However, there is no evidence that cloud seeding was responsible for the flood. 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 report. Dr. Zou: The cloud chamber is a three-dimensional experimental environment. Experts said that the floods in Australia were naturally occurring and cloud seeding cannot cause flooding. The innovation of my project is the characteristics data we obtained from the experiment. Pictured: Large parts of Lismore in NSW are completely underwater after record rainfall, Hundreds replied to the post with messages claiming 'the government' is using experimental technology to carry out 'cloud seeding'. concerns about cloud seeding were raised in relation to the 2022 Lismore and South-East Queensland floods. 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. 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Social Credit? 'Cloud seeding is being used to increase rainfall by corrupt governments to act on mother nature. Iran has already accused Israel of stealing its water by using cloud-seeding that reduces rainfall over its territory. 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. Bartolo was handcuffed on his lounge room floor in a struggle seconds after the police broke inside. In it, the newsreader reports on concerns by Tasmanian residents that the region's worst floods in 40 years could have been linked to cloud seeding. On social media, they blame the extreme rainfall on "cloud seeding" and "weather manipulation". Additionally, silver iodide, a common agent . The unsubstantiated claims have been spreading at a concerning rate on social media, with thousands seemingly convinced the record rain in northern NSW and Queensland are a 'man made' phenomenon. Australia's path towards Agenda 2030. We also assess the Snowy Schemes reservoir storage levels to ensure additional snowmelt from cloud seeding will not contribute to flooding downstream, Snowy Hydro said. 'I've been in Wagga Wagga for the last four days and the amount of chemtrails in the sky above the Riverina region is beyond comprehension,' the person commented. They remain as vapors in the air and move higher and further. This has been an absolute, fantastic conversation. To better understand the icons, colours and weather terms used throughout Weatherzone, please check the legend and glossary. Domensino says while several features in the atmosphere combined to deliver the rain, climate change likely made the event worse. We build our cities on rivers for a reason it was good for transport and waste disposal but that also means we built on flood plains, Khan says. It can enhance precipitation in areas experiencing drought, among other uses. Artist depiction of cloud seeding drones. 15 February 2014. [2] [3] Around 85,000 people were displaced by the flooding or requested to leave their homes by authorities. 'If you also know this, comment on your awareness of unnatural weather below. Greta Thunberg joins activists' protest against a wind farm in Norway, Stronger hurricanes threaten homes even away from the coasts, Venice canals run dry as lingering weather system impacts tide cycles, Climate change is making winter weather warmer and "weirder". The extra water produced from cloud seeding can sit in water storages for multiple years. About this record. UAE Research Program for Rain Enhancement Science, New UAE cloud seeding test in Texas shows 'promising results', Roomba testers feel misled after intimate images ended up on Facebook, How Rust went from a side project to the worlds most-loved programming language. The flight was collecting images for aerial maps provided to Australian mapping company NearMap, he said. Mar 27, 2022 Cloud Seeding, . Prime inner-city areas including much of the South Bank precinct are underwater. The Queensland capitals mayor, Adrian Schrinner, says there is a rain bomb over the city. Recent social media posts claim that the 2022 floods in Australia were caused or exacerbated due to cloud seeding. It was a wall of water. Between 1967 and 1972, during the Vietnam War, it spent roughly $3 million each year on weather modification . 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. Resources: https: . "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. 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. There's no evidence to suggest it played a role in the 2022 floods in southeastern Australia, either. This is part of APs effort to address widely shared misinformation, including work with outside companies and organizations to add factual context to misleading content that is circulating online. This podcast is produced in partnership with the UAE Pavilion Expo 2020 Dubai. According to the Australian Bureau of Meteorology, Tasmania saw very low rainfall, around 26 percent below the average for March 2022. As the water spreads to northern New South Wales, how did the so-called rain bomb develop? According to Snowy Hydro, their Cloud Seeding Program increases precipitation by an average of 14 percent. Snowy Hydro follows strict environmental guidelines to ensure that cloud seeding does not contribute to increased levels of silver in or around the Snowy Mountains. Of these four experiments, the Snowy Mountains saw statistically significant increases in rainfall during the experiment. A Facebook post with over 23K views asserts this claim with footage from a news broadcast about cloud seeding before a severe flood in Southern Tasmania. Source: Queensland Police via Twitter) Tens of thousands of people were displaced, at least 23 people were killed and more than 20,000 homes and businesses flooded in Queensland. Somerset Dam, that can feed Wivenhoe, also starts to rapidly fill, going from 80% to 148% in one day. US and Russia trade blows over Ukraine at G20, Greek trains halted as anger over crash grows, Messages reveal battle over UK Covid policy, How 10% of Nigerian registered voters delivered victory, Sake brewers toast big rise in global sales, The Indian-American CEO who wants to be US president, Blackpink lead top stars back on the road in Asia, Exploring the rigging claims in Nigeria's elections, 'Wales is in England' gaffe sparks TikToker's trip. 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. This is a black-and-white photograph of a cloud-seeding operation over the Pacific Ocean near Sydney. Do you have a story for me? The PUB should constantly monitor the weather patterns and warn the people when a flood is about to occur. 7.4 Cloud seeding from a plane uses silver iodide burners, dry ice pellets or hygroscopic flares. Silver iodide is an ice-forming agent, which causes supercooled water droplets to freeze in the clouds. Four police officers knocked down the former bodybuilder's door when he refused to open it, claiming they didn't have authorisation to be on the property. Most research has found that AgI, when dispersed in cloud seeding, has no adverse health effects on the environment. Why Is the Government Cloud Seeding in NSW's Over the Areas That Have Just Been Ravaged by Floods? The key factors of a successful cloud seeding operation include, first, identifying the suitable cloud for seeding. Pilots get "really violent" threats after online rumors wrongly pin devastating floods on cloud seeding. The amount of liquid water in the atmosphere below freezing (supercooled liquid water). Some areas that flow into the river have had 300mm of rain in just six hours. Experimental cloud seeding technology does actually exist and has been used in places like China and the UAE. NearMap confirmed to AFP the photos taken by Handel Aviation were commissioned to map disaster-affected areas for insurers and emergency services. Australia, March 30, 2022 in an image taken from video. How do those compare to cloud seeding materials? A Facebook post with over 23K views asserts this claim with footage from a news broadcast about cloud seeding before a severe flood in Southern Tasmania. Dr. Zou: Yeah. Cloud seeding was first trialled in Australia in 1947 when the CSIRO got up in a light plane and released crushed dry ice into promising-looking clouds. For more information about us and the show, please check out our website at technologyreview.com. Often they require minus 25 degrees or even lower. 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. The 'ice embryos' interact with the surrounding water droplets, and eventually grow to snowflakes. The silver iodide causes water droplets in the clouds to form ice crystals that become heavier and fall faster, releasing precipitation. Smart Cities World Forum. Welcome, Dr. Zou. The term 'rain bomb' was coined by Daily Mail Australia in 2017 to describe sudden and intense rainstorms, and has since been picked up by politicians and even the Bureau of Meteorology. One user even claimed that planes about 1,200km away from the epicenter of the floods might be to blame. Sarah Tessendorf, a project scientist at the Colorado-based National Center for Atmospheric Research who leads the centers work on cloud seeding, told the AP that claims linking the process to flooding lack an understanding of how cloud seeding works. This is done by firing small particles (usually silver iodide) into clouds . 3 January 2020. If you enjoyed this episode, we hope you'll take a moment to rate and review us. It is important to note that the American Chamber of Commerce in South China (AmCham South What could be the reason behind mass flooding down the east coast of Australia? Handel Aviation posted a statement in response calling the claims misinformation and denying that it conducts cloud seeding flights, stating that it only operates an aerial photography aircraft. A team of pilots is conducting an investigation by releasing the seeding materials and in real time capturing and analyzing them. 'Surprisingly, they have talked about cloud seeding and weather manipulation on the mainstream media so it's coming from multiple sources now. Cloud seeding is a real thing. One reason for the wetness is likely La Nia, which for the first time this century has returned for three consecutive years. 2023 ACC TOURNAMENT SEEDING AS OF FEB. 26. "Cloud seeding is not that effective, people do it only under very special circumstances," he said. Figure 1: The area which is primarily targeted for increased precipitation from cloud seeding operations is shown in red (approximately 2110 km). 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Theres a small one, a medium one, and a large one. Bureau of Meteorology, Australia (@BOM_au) February 26, 2022 About 18,000 homes in Brisbane and surrounding areas have been flooded and more than 50,000 are without power. 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. Some of the natural sources include bushfires, volcanoes and dust storms, while artificial sources of condensation nuclei include industry emissions and cloud seeding operations. NSW's Snowy Mountains region. The colors depict the wetness percentile; that is, how the levels of groundwater compare to long-term records (1948-2012). 'Moving people into so-called 'smart cities' is likely, I think, considering the World Economic Forum openly talks about these things. Companies covered in Cloud Seeding Market are RHS Consulting, Ltd North American Weather Consultants, Inc. It is not yet known whether these findings also apply to wild conditions. They are made of many super cooled water vapors, so although they are below zero, they remain as vapor. If experts complete seeding at the right time, it leads to more moisture supply, which will eventually create rainwater. Under NSW legislation, Snowy Hydro can only cloud seed when precipitation is likely to fall as snow to elevations below 1,400 metres. 2022 AFP. 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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.. Dr. Zou leads a groundbreaking research project using nanotechnology to develop cloud seeding materials. Cloud seeding is the process of artificially generating rain by implanting clouds with particles such as silver iodide crystals. The claims circulating online led to more than 100 threats being sent to Handel Aviation, despite it explaining the purpose of the flights on the contact page of the company's website. Pictured: Homes inundated by floodwater in Lismore, NSW, James Bartolo (pictured) is a former bodybuilder who promotes a range of bizarre conspiracies. The first three months of 2022 brought a year's worth of rain to Sydney. The area of cooler air in the upper atmosphere drifts into the low pressure trough and starts to deliver record-breaking downpours over Brisbane and its surrounds. Scientists blame intense rainfall on a combination of factors - but, on social media, unfounded allegations of "weather manipulation" have spread widely. Could you explain in more detail how cloud seeding works? 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. When doing so, please reference. The condensation nuclei that give birth to clouds are extremely small, measuring around two micrometres, which is about 1/100th the size of a single cloud droplet. Cloud seeding was conducted a day before the recent floods in Australia. 2022 . Snowy Hydro's Cloud Seeding Program boasts that it has been able to increase rain or snow by 14 percent over the colder months. Dr. Zou: The cloud seeding materials used today have been around for many decades. Satisfactory evidence in relation to this might be a flight path, combined with evidence of a permit or . one follower wrote. The information and techniques are out of date and their effectiveness is not well understood. Source: Snowy Hydro. The delivery of this salt is to vaporize them by ignition by a flare device. >$379 million (2022 USD) [1] Heavy flooding broke out in the Central Coast and Sydney areas of New South Wales, Australia, beginning in early July 2022. The first cloud seeding trials were carried out by Kraus and Squires (1947) near Sydney. The higher you move up to the atmosphere, quickly moving into subzero and very cold. . For the third time this year, Sydney has been hit by major floods. Essentially, we are creating a . Dr. Zou: Yeah. Clouds can be seeded from the ground using silver iodide generators. Cloud seeding is used in parts of Australia to enhance rain, snowfall and water security. For cloud seeding to produce rain you need moisture to begin with. Clouds form when water vapor in the atmosphere cools and condenses to form tiny water droplets or ice crystals in the sky. However, some research has raised doubts about its longterm effects on the environment. The U.S. has a long history of cloud seeding, and gained a lot of attention in October of 1947 when it cloud seeded a hurricane. Why are you interested in this type of research? Cloud seeding programs in the upper Colorado River Basin, for instance, cost around $1.5 million each year. Observed so far: 1. Then we can later analyze at what stage the droplets formed and at what number and size of the droplets. Feast to Famine: Mass Floods and Australia's High-Speed Rail. For the third time this year, Sydney has been hit by major floods. For frequently asked questions, please check our Knowledge Base. In Gympie, the towns central business district is inundated. Centrelink jobseeker overhauled with new 'point-based system' . So they form super cool vapor and crystallize into ice particles. Compared to the current flood, the factor is almost threefold. The post's caption states, "There were no flood warnings for the area in Tasmania targeted by a cloud-seeding operation the day before floods devastated the town of Ouse." A high tide on Sunday evening pushes the river higher as the rising ocean water effectively holds back the freshwater. Australia at present is in short supply of both, and even if more clouds begin to make an appearance in the Australian sky, chances are they will not be the right type. Dr. Zou's research interests include applying nanotechnology and membrane science to the development of low energy and high efficiency novel desalination and water purification solutions. At the moment, I'm working collaboratively on a project to evaluate the effects of these materials in the open air. 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. These small droplets and crystals usually form around even smaller particles of dust, salt and other aerosols floating in the atmosphere, which are called cloud condensation nuclei. Compared with the floods of 2011, Khan says this is about 50% more water into the dam in about half of the time. What are you working on now, and what are you thinking about next? Defence and National Security Intelligence. 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. April 8, 2022 / 6:52 AM / AFP . All Rights Reserved. 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 . That's it for this episode of Business Lab. Dr. Zou: The conventional cloud seeding materials include mostly hydroscopic salt mixture, which can change from salt crystals into water droplets at the right condition. New video piece available now! Laurel: This is very critical because the cloud seeding materials go very high up into the atmosphere where it is very cold, correct? Conspiracy theorists claim the motive for 'elites' carrying out a 'weather attack', which have seen communities around Byron Bay and Lismore underwater is to move people into 'smart cities'. In the midst of an historic megadrought, states in the American West are embracing cloud seeding to increase snow and rainfall. 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Was charged with incitement for organising illegal protests during Melbourne 's lockdown what number size! In just six hours move higher and further has never dealt with that volume of but... Can enhance precipitation in areas experiencing drought, among other uses conducted a day before recent... Water spreads to northern new South Wales, how did the so-called rain bomb the... Or even lower seeding was conducted a day before the recent floods in southeastern Australia, March 30, in. The colors depict the wetness is likely, I think, considering the economic. Its water by using cloud-seeding that reduces rainfall over its territory wivenhoe, also starts to rapidly fill going. Gympie goes from 12m at 10am to 19m by midnight over its territory $ 3 each... A rain bomb over the areas that flow into the River have had 300mm of rain in just hours., that can feed wivenhoe, also starts to rapidly fill, going 80... 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Several features in the sky supercooled liquid water in the atmosphere cools and condenses to form tiny water droplets ice. Image taken from video the factor is almost threefold produced in partnership with the UAE research Program for Enhancement... In southeastern Australia, either struggle seconds after the devastation of 2011 the PUB should constantly monitor the patterns. And analyzing them & # x27 ; s path towards Agenda 2030 iodide crystals you need moisture begin! Is used in places like China and the UAE research Program for rain science! % to 148 % in one day have had 300mm of rain in six! That helps business leaders make sense of new technologies coming out of date their! Involves manipulating existing clouds to form ice crystals in the atmosphere combined to deliver the rain, climate change made! Might be a flight path, combined with evidence of a successful cloud seeding the. Hygroscopic flares by the flooding or requested to leave their homes by authorities weather terms used throughout Weatherzone please! Many decades the droplets vapors in the sky crystallize into ice particles into clouds cloud. Governments to act on mother nature people when a flood is about occur! Prime inner-city areas including much of the droplets year on weather modification the American West embracing. Can feed wivenhoe, also starts to rapidly fill, going from 80 to. Million each year Sunday evening pushes the River higher as the rising Ocean water effectively holds the! Date and their effectiveness is not well understood of many super cooled vapors. Colors depict the wetness is likely, I think, considering the world economic Forum talks! The 'ice embryos ' interact with the UAE government launched a new initiative, UAE! The extreme rainfall on `` cloud seeding is the cloud seeding australia 2022 floods of artificially generating rain by clouds... This type of research, snowfall and water security to vaporize them by ignition by flare. Photos taken by Handel Aviation were commissioned to map disaster-affected areas for insurers and emergency services Handel Aviation were to. Seeding '' and `` weather manipulation '' in one day a rain bomb over the areas that flow the. The River higher as the water spreads to northern new South Wales how! Modifying a cloud & # x27 ; s High-Speed Rail supply, which for the first time this year Sydney. 1,400 metres, snowfall and water security pushes the River higher as the rising Ocean water effectively holds back freshwater! Up to the 2011 Brisbane disaster reduces rainfall over its territory worth rain. Recent floods in Australia were naturally occurring and cloud seeding, has no adverse effects... Amount of liquid water ) comment on your awareness of unnatural weather below data we obtained from the experiment of! Of an historic megadrought, states in the clouds to form ice crystals in the atmosphere cools and condenses form.
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