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Cloud seeding can use either ground based generators and / or aviation for operations. This will provide the people with a safety net to fall on, in the event of a flood. Our topic today is cloud seeding to increase rainfall. Dr. Zou: As we know, the global water shortage has continuously intensified by rapid population growth and economic development around the world. 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. Laurel: Your research signifies a milestone toward achieving greater water security in the world. On the other hand, I am also dedicated to the scale up of the production, reduce the cost, and the application of the materials. 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. 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. In Gympie, the towns central business district is inundated. Satisfactory evidence in relation to this might be a flight path, combined with evidence of a permit or . . The image below shows how silver iodide can be used to create snow on the leeside of a mountain range. And yet, this myth seems to have found an audience on various social media platforms. This shows us the risk is real to have two serious flood events in just 11 years is a pretty high frequency for a major city like Brisbane to have to deal with.. Where did it go wrong. A planned factory marks a major milestone in the US for new batteries that enable lower-cost, longer-lasting EVs. Cloud seeding adds small, ice-like particles to clouds. Property damage. The silver iodide causes water droplets in the clouds to form ice crystals that become heavier and fall faster, releasing precipitation. For general feedback and enquiries, please contact us through our Help Desk. Share. The fact that the damage and loss of life were so great this time is due to the fact that many more people live in . Often, a compound like Silver Iodine (AgI) is used as the particulate matter, as it is naturally occurring in the world in low concentrations. 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. 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. 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. CBS News reported on April 8 that many Australian pilots and aviation companies received threats regarding false claims on social media about cloud seeding. "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. Media reports estimated at least 22 . Singapore should also build more drainage canals to effectively reduce the occurrence of . You took this on as part of your research. Is that correct? A really strong storm, she explained, will already have a very strong updraft and windflow characteristics that help create the cloud to begin with. Once such cloud encounters the ice nucleation particles, they rapidly form a large number of ice crystals and bypass the liquid water phase. Prime inner-city areas including much of the South Bank precinct are underwater. 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. 7 July 2022. 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. Large areas of south-east Queensland are placed under a warning for intense rainfall and thunderstorms that will cause flooding. March 8, 2022 . This salt vapor then will recondense as very small particles. 2023 BBC. Dr. Zou: In the natural water cycle on the earth, the sun irradiates on the surface of our planet and the water on the surface is evaporated by the heat as the vapors. In the U.S., studies have found a few percentage points of increase in precipitation. 'If you also know this, comment on your awareness of unnatural weather below. There is no evidence to prove cloud seeding affected the flood. NearMap confirmed to AFP the photos taken by Handel Aviation were commissioned to map disaster-affected areas for insurers and emergency services. Today, that endeavor is making . Some of those he contacted were surprised or angry, Berko said. The first three months of 2022 brought a year's worth of rain to Sydney. Companies covered in Cloud Seeding Market are RHS Consulting, Ltd North American Weather Consultants, Inc. Conspiracy theorists have claimedthe floods devastating Australia's east coast are part of a 'government weather warfare attack'. 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. Through the advancement in nanotechnology and nanoscience, nowadays we are working to design and engineer cloud-seeding materials with optimal properties to ensure water vapor condensation will occur effectively and maximize the rainfall achieved, explains Dr. Zou. This type of microphysical response is very unlikely to produce such an overwhelming change in the cloud.. Do not sell or share my personal information. A conspiracy theorist claims destructive rain and flooding in south-eastern Queensland and northern NSW are the result of man-made weather manipulation from "cloud seeding".. Social media users are also sharing a separate example to baselessly claim that cloud seeding played a role in flooding that happened throughout February and March in Queensland and New South Wales, leading to more than a dozen deaths. There is no evidence to back up such theories, but this hasn't prevented falsehoods from reaching thousands of people online. 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. Artist depiction of cloud seeding drones. The claim is false. 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. April 8, 2022 / 6:52 AM / AFP . A La Nia develops when strong winds blow the warm surface waters of the Pacific away from South America and towards Indonesia. My research work has been supported in their first cycle and received excellent worldwide exposure. Conspiracy theorists claim the motive for'elites' carrying out a 'weather attack', which submerged communities around Byron Bay and Lismore, was to move people into 'smart cities'. Dr. Zou: Yes, you are right. The conventional cloud seeding material can only be activated at a very high relative humidity in atmosphere in the cloud, such as greater than 75% relative humidity. "Cloud seeding is not that effective, people do it only under very special circumstances," he said. 15 February 2014. 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. 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. For more information about us and the show, please check out our website at technologyreview.com. Snowy Hydro limited Seeding Operations and Atmospheric Research (SOAR) and many morePune, India, Feb. 21, 2022 (GLOBE NEWSWIRE) -- The global cloud seeding market size is set to gain traction from the increasing adoption of weather modification technologies by various countries, shares . Experts say no single factor can explain this extreme weather, pointing instead to warmer oceans and saturated soils as contributing factors. However, both are far overshadowed by the disaster of 1804, whose water discharge, with a peak discharge of about 1,200 m3/s, was twice as massive as the 1910 event. Leverage advanced weather intelligence and decisioning tools for your enterprise business. The show that helps business leaders make sense of new technologies coming out of the lab and into the market place. 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. Mr Bartolo's followers claimed aircraft leaving 'chemtrails' in the sky across NSW is how the cloud seeding process is being administered. UAE is in the arid climate zone, and the government has already taken the initiative of this UAE research program for re-enhancement science. 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. Source: nationalparks.nsw.gov.au This stored water can help ensure renewable energy generation and downstream water availability during future drier years, when inflows are lower. It is important to note that the American Chamber of Commerce in South China (AmCham South There has been torrential rain for two days and there is much more to come. Like: 'we have the pilots' names, we know where you live, you're going to pay for this,' kind of stuff," Handel told AFP. The previous record was 600.4mm in 1974. Second, having the efficient seeding material for water droplet formation. Given climate change is a background to all weather events, its hard to say that it does not play a role, he says. . We know the oceans are getting warmer and that puts more moisture in the atmosphere, and a warmer atmosphere can hold more moisture.. Nanotechnology can engineer material and design the material with well controlled size, shapes, and properties. 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. Laurel: That was Dr. Linda Zou, a professor of civil and environmental engineering at Khalifa University of Science and Technology, who I spoke with from Cambridge, Massachusetts, the home of MIT and MIT Technology Review, overlooking the Charles River. As Brisbane starts a long and costly clean-up, hundreds of cars are stuck on the main M1 highway to the south. This process is known as glaciogenic cloud seeding. 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. Laurel: Certainly, a number of possible commercial ventures. Dr. Zou: Yes. 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. A spokesman for the state's water authority says the dam doesn't have a flood mitigation component, so no water was released ahead of the downpour, which came when the state's dam network . 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. After extensive testing, the CSIRO has determined that cloud seeding is unlikely to be effective in much of Australia. You are also pursuing funding initiatives at this point too, for your research. Get in touch. 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. Often they require minus 25 degrees or even lower. 2022 . Dr. Zou: Yes. Observed so far: 1. Laurel: Could you describe that weather chamber that you used in your experiments? But there is no evidence to suggest cloud seeding has anything to do with the current rainfall in Sydney. Snowy Hydro's Cloud Seeding Program boasts that it has been able to increase rain or snow by 14 percent over the colder months. CLAIM: A rain-enhancing process known as cloud seeding caused historic flooding in Tasmania, Australia, in 2016 and along Australias southeastern coast this year. For the third time this year, Sydney has been hit by major floods. Social media users are also sharing a separate example to baselessly claim that cloud seeding played a role in. Researchers have been trying to . The language they are using such as "rain bombs" is clear enough for me,' a commenter said. Cloud seeding experiments began in Australia during 1947 after American scientists made the discovery in 1946. (AP Photo/Rick Rycroft), Connect with the definitive source for global and local news. 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. In the 2016 clip from the Australian TV network 7News, a journalist says, Residents in southern Tasmania are demanding to know why cloud seeding was conducted over the Derwent River catchment the day before the worst floods in 40 years., One social media user shared the old clip Tuesday with the caption, Remember when this was a CONSPIRACY NOW - CLOUD SEEDING IS NOW OPENLY REPORTED - MAKING FLOODING WORSE - investigations are now being conducted as to WHY this was done!. Some conspiracy theorists have been sharing a 2016 news report from the Australian TV network 7News - which has now been watched thousands of times. This is done by firing small particles (usually silver iodide) into clouds . A dangerous and bizarre conspiracy theory is circulating that the devastating floods which have torn through Australia's . Cloud seeding: Making rain in desert. Seeding clouds as a way to change weather began its history as a serious science during WWII, originally as a way to interrupt severe storms or to produce rain and snow. 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." The comments below have not been moderated. A really strong storm, she explained, will already have a very strong updraft and windflow characteristics that help create the cloud to begin with. What could be the reason behind mass flooding down the east coast of Australia? A decades old idea, with todays innovation, might be the answer to help drought-stricken countries and to fight climate change. 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. The BBC is not responsible for the content of external sites. What are you working on now, and what are you thinking about next? Unlock more weather data and layers options. The 'ice embryos' interact with the surrounding water droplets, and eventually grow to snowflakes. La Nia events can influence weather in different ways across the . Prof Stuart Khan, an expert on water management at the University of New South Wales, says Wivenhoe gained about 1,450 billion litres of water, which all came in under three days. As the trough is expected to move slightly east, computer models show that by Friday there is a bit of a bullseye over Brisbane, a BoM forecaster says. This is done by firing small particles (usually silver iodide) into clouds. Domensino says while several features in the atmosphere combined to deliver the rain, climate change likely made the event worse. 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. Dr. Zou: It is a challenge area and I have collaborated with the Cloud Microphysics Modeling International team. Iran has already accused Israel of stealing its water by using cloud-seeding that reduces rainfall over its territory. As a result, flooding this time has been much more extensive from small creeks and large rivers, he says. Could this all just be a . 2. Some social media users are spreading false theories about what has caused multiple floods in Australia in recent years. Cloud seeding aims to protect flood-hit Jakarta. Today, together with the National Center of Meteorology of the UAE, we can see the application of these new seeding materials in real operations very quickly across UAE to increase the rainfall. Cloud seeding was invented in the 1940s and is often used as a tool to increase winter snowfalls. Cloud-seeding is a weather-modification practice used to artificially create or promote additional rain/snow from existing clouds. BBC. Top Stories. Defence and National Security Intelligence. A 2016 news clip was associated with the recent floods in Australia. Cloud seeding, first developed in the 1940s, involves spraying fine particles of silver iodide and dry ice into a cloud system. Since the 1940s, scientists have studied ways to increase rainfall with the goal of increasing precipitation in arid and semi-arid climates. Figure 1: The area which is primarily targeted for increased precipitation from cloud seeding operations is shown in red (approximately 2110 km). FILE - Buildings are surrounded by flood waters in Londonderry on the outskirts of Sydney, Australia, Thursday, March 3, 2022. "Those numbers tell us that this is an inexpensive way to help add water to the system. NSW's Snowy Mountains region. Mass Floods and Australia's High-Speed Rail. 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. 'It is very obvious. 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. Cloud seeding is a form of planned weather modification. Brisbane wakes up to major flooding. Australian Broadcasting Corporation (ABC News) quoted the Department of Premier and Cabinet's report on the flood in 2018. Compared to the current flood, the factor is almost threefold. Cloud seeding is a real thing. The flight lasted an hour and 34 minutes over the Upper Derwent catchment, targeting Lake Echo. Oct 15 (Reuters) - Floods caused by torrential rain are hitting large swathes of southeast Australia, inundating hundreds of homes and forcing authorities to urge thousands of people to evacuate . According to Domensino, some 611.6mm of rain fell on the city between 9am Friday and 6pm Sunday the highest three-day total in records dating back to 1840. 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. that happened throughout February and March in Queensland and New South Wales, leading to more than a dozen deaths. Another added: 'Absolutely nothing natural about the rainfall in the past 5 months. Cloud seeding is the process of artificially generating rain by implanting clouds with particles such as silver iodide crystals. NOTE: Dry ice used for cloud-seeding = solid carbon dioxide = CO2. Cloud seeding was conducted a day before the recent floods in Australia. EPA. Formerly, cloud seeding was rejected in Australia on environmental grounds because of concerns about the protected species, the pygmy possum. Ouse in the Derwent River catchment was one of the hardest hit areas in this week's floods. Some areas that flow into the river have had 300mm of rain in just six hours. Mr Bartolo moved to the Gold Coast in November 2020 after he was charged with incitement for organising illegal protests during Melbourne's lockdown. It is not yet known whether these findings also apply to wild conditions. Then we can later analyze at what stage the droplets formed and at what number and size of the 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 . Why Is the Government Cloud Seeding in NSW's Over the Areas That Have Just Been Ravaged by Floods? Silver iodide helps rain drops and ice crystals grow larger and increases the amount of rain and snow that can fall from clouds. The extra water produced from cloud seeding can sit in water storages for multiple years. He was charged with incitement for allegedly encouraging his social media followers to attend an illegal rally. A record-breaking and relentless deluge that lasted days and flooded towns and cities along Queenslands south-east coast, submerging thousands of homes and leaving at least nine people dead. The most common particulate used in cloud seeding is silver iodide, which has a similar structure to ice crystals and helps supercooled liquid water droplets cluster together. We will revisit our evidence and verdict and conduct additional research to verify new information. 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. 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. Laurel: You were one of the first scientists in the world to explore the use of nanotechnology in cloud seeding. In Australia, water can be a scarce commodity, with variousareas of the country suffering through prolonged droughts at times. 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