• About Us
  • Contact Us
  • Editorial Policy
  • Privacy Policy
  • Terms & Conditions
Friday, February 3, 2023
The Washington Mail
  • Home
  • World
  • Business
  • Tech
  • Entertainment
  • Health
  • Lifestyle
No Result
View All Result
The Washington Mail
No Result
View All Result

Tokyo aims to make practical use of artificial rain technology

by Editorial Board
September 6, 2022
in Tech News
Tokyo aims to make practical use of artificial rain technology


With the world facing the prospect of more extreme weather events including droughts, Japan is one of a number of countries making efforts to advance artificial rain technology to help mitigate water shortages when rainfall is sparse.

In Tokyo, metropolitan authorities set up artificial rain generators on the eve of the Tokyo Olympics and Paralympics last year with the aim of increasing the amount of water stored in dams during dry spells.

Tokyo aims to make practical use of artificial rain technology

Photo taken on Aug. 1, 2022, shows Tokyo’s artificial rain device, dubbed “Ogouchi Smoke Station,” next to Ogouchi Dam in Okutama, western Tokyo. (Kyodo)

One is erected inside a newly built shed near the Ogouchi Dam, upstream of the Tama River system in Okutama, western Tokyo. Pipes stretch around a silver-colored tank connected to a retractable roof in the facility, dubbed the “Ogouchi Smoke Station.”

“The material that will become the seeds of raindrops is blown into the sky from here,” explains Tetsuo Nakamura, head of the management office of the Ogouchi reservoir, located some 65 kilometers west of the Japanese capital.

In the “seeding” process, smoke generated by burning liquid silver iodide mixed with acetone is emitted from the facility, with the silver iodide becoming the nucleus around which water condenses to form a raindrop.

It is a method of weather modification that experts admit has limited effectiveness and almost no practical application today. Nevertheless, the metropolitan government has three more generators at sites on the west side of the dam in Yamanashi Prefecture.

According to the Tokyo government, silver iodide is a substance that is hard for the body to absorb, and there have been no reports of harmful effects of man-made rain on the human body or environment.

Tokyo introduced artificial rain generators in 1965. But due to aging, it jointly developed new models with the Meteorological Research Institute of the Japan Meteorological Agency, having replaced two old generators at a cost of 80 million yen ($570,000) since 2020.

With the use of overseas know-how, the city was able to improve the combustion method and concentration of the solution, enabling a more efficient way of dispersing the raindrop nuclei than is usual, a metropolitan government official said.

However, only 5 percent of rainfall can be expected to be increased using the rain generator, and only if certain weather conditions, such as wind direction, are met.

Although the rain generators were made available to address a possible water shortage during the Olympics and Paralympics, there were no opportunities to operate them.

Photo taken on Aug. 1, 2022, shows inside the “Ogouchi Smoke Station,” used as an artificial rain device. A liquid placed inside a tank (L) is vaporized and the smoke emitted into the sky from the facility in Okutama, western Tokyo. (Kyodo)

Since 1965, the devices have been operated for about 800 days, and have not been put to practical use since 2001. Although there were droughts in 2013 and 2016, the machines were operated only on a trial basis, partly because of the development of water sources other than the Tama River system.

“Artificial rain generators alone cannot solve water shortages,” the metropolitan government official said. “But just the fact of operating them implicitly conveys the seriousness of a situation to citizens and is a way of asking for their cooperation in restricting their water intake.”

Artificial rain technology has been adopted by 50 countries around the world, including Thailand, which experiences severe water shortages during its dry season.

In Japan, research into weather modification started in the 1950s. Masataka Murakami, a specially appointed professor at Nagoya University who was involved in the development of rain generators for the Tokyo government, said their effects on increasing rain and snow have been “scientifically proven” in recent years.

To increase rainfall more reliably, the Tokyo government had considered using aircraft to seed clouds directly with the core substance for raindrops but gave up the plan because of high maintenance costs.

Speaking about the potential benefits of further research in artificial rain production, Murakami said, “In addition to artificial rainfall, if it becomes possible to artificially adjust the amount and location of rain and snow in the future, it may be used to reduce torrential rain and other disasters.”

 

(function(d, s, id){ var js, fjs = d.getElementsByTagName(s)[0]; if (d.getElementById(id)) {return;} js = d.createElement(s); js.id = id; js.src = "https://connect.facebook.net/en_US/sdk.js"; fjs.parentNode.insertBefore(js, fjs); }(document, 'script', 'facebook-jssdk'));



Source link

Tags: aimsartificialpracticalrainTechnologyTokyo
Editorial Board

Editorial Board

Get the latest news and updates on World News, Business, Tech, Entertainment and more.

Related Posts

Spotlighting Black-owned businesses across Houston area - KHOU.com

New electrochemical sensing technology enables detection of SARS-CoV-2 antigen-specific antibodies – News-Medical.Net

by Editorial Board
February 3, 2023
0

New electrochemical sensing technology enables detection of SARS-CoV-2 antigen-specific antibodies  News-Medical.Net Source link

Getlink: The Channel Tunnel Is at the Forefront of Rail Power Technology and Is Increasing Its Transport Capacity

Getlink: The Channel Tunnel Is at the Forefront of Rail Power Technology and Is Increasing Its Transport Capacity

by Editorial Board
February 1, 2023
0

PARIS--(BUSINESS WIRE)--Regulatory News: Getlink (Paris:GET) announces that Eurotunnel has commissioned the world’s most powerful static compensator (VSC technology) connected to...

The Rise of Smart Cities: Technology Transforming Urban Development

The Rise of Smart Cities: Technology Transforming Urban Development

by Editorial Board
January 30, 2023
0

The world is rapidly urbanizing, and cities are facing the challenge of accommodating the needs of their growing populations...

Next Post
‘Keep your heart on your sleeve’: Timothée Chalamet

‘Keep your heart on your sleeve’: Timothée Chalamet

Popular Stories

  • DYOR Paving the Path to Digital Supremacy in Web 3.0 and NFT Industries

    DYOR Paving the Path to Digital Supremacy in Web 3.0 and NFT Industries

    0 shares
    Share 0 Tweet 0
  • Top Three Fruity Slots

    0 shares
    Share 0 Tweet 0
  • Congratulations on Lenercom ESS Won the iF design award 2022!

    0 shares
    Share 0 Tweet 0
  • morph: The Web3 Brand That Bridges The Gap Between Real and Virtual Worlds Through Digital Innovation

    0 shares
    Share 0 Tweet 0
  • Entrepreneur Davide De Vries redefines online sales through his distinctive mentorship programs.

    0 shares
    Share 0 Tweet 0

Recommended

War in Ukraine Dominates U.N. General Assembly

War in Ukraine Dominates U.N. General Assembly

September 21, 2022
7 Fantastic Prime Day Deals

7 Fantastic Prime Day Deals

July 8, 2022
Box Babe Gift Co. thriving after uncertain launch in 2020

Box Babe Gift Co. thriving after uncertain launch in 2020

July 3, 2022
  • About Us
  • Contact Us
  • Editorial Policy
  • Privacy Policy
  • Terms & Conditions

© 2022 The Washington Mail. All Rights Reserved.

No Result
View All Result
  • Home
  • World
  • Business
  • Tech
  • Entertainment
  • Health
  • Lifestyle

© 2022 The Washington Mail. All Rights Reserved.