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China Weather System

China Weather System. Can Mother Nature be Changed?. Is Controlling the Weather Really Possible?. In reality….No, it is not possible to control the weather. Can the weather be altered? Absolutely, and that is what China has been researching. A common practice for over 50 years.

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China Weather System

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  1. China Weather System Can Mother Nature be Changed?

  2. Is Controlling the Weather Really Possible? • In reality….No, it is not possible to control the weather. • Can the weather be altered? Absolutely, and that is what China has been researching. • A common practice for over 50 years

  3. Incentive to Change the Natural Pattern of Rain? • China is heavily populated with very bad smog and pollution. • Help clear smog and pollution • Help provide more crops and water to the cities. • Olympics 2008 • http://news.xinhuanet.com/english/2008-08/09/content_9079637.htm

  4. Rain • Works when too much moisture is collected in clouds to a point of saturation, when the clouds can no longer support the moisture. • When the clouds can no longer support the moisture, rain droplets are formed and begin to fall.

  5. So How Do the Chinese Alter This Natural Process? • Cloud seeding • What? • Nuclei • How? • Guns • Planes • Why? • Expedite

  6. Different Nuclei Used in Cloud Seeding are: • Salts, calcium, chloride, dry ice or silver iodide. • Chinese use silver iodide because it is similar to ice crystals

  7. How Effective is Cloud Seeding? • Beijing’s water basins have increased over 13 percent • Cloud seeding often helps to cool temperatures

  8. Different Forms of Cloud Seeding • Static • Silver Iodide • Dynamic • Boosts vertical air currents = more water • Hygroscopic • Disperses salts to enlarge rain drops

  9. Different Forms of Cloud Seeding (cont’d) • 12,000 anti-aircraft guns and rocket launchers • 30 planes • 32,000-35,000 people participate

  10. Is This Process Cost Effective? • China spends 60-90 millions dollars a year • Pay farmers $100 / month to fire anti-aircraft guns

  11. Could Anger Neighbors • While some of the cities need rainfall, others do not. • http://news.bbc.co.uk/2/hi/asia-pacific/3893671.stm

  12. Could Anger Neighbors (cont’d) • Accused of stealing rain? • That’s right, some cities say others using cloud seeding stole their potential clouds • China man angry:

  13. Major Chinese Cities Rainfall Report Haikou knew they were to experience droughts over winter and over extended cloud seeding

  14. Resources • Beijing 2008 Olympics • http://news.xinhuanet.com/english/2008-08/09/content_9079637.htm • Can China Control the Weather? • http://science.howstuffworks.com/cloud-seeding.htm • China rain-making creates a storm • http://news.bbc.co.uk/2/hi/asia-pacific/3893671.stm • Rainfall Report • http://www.hko.gov.hk/wxinfo/gdrf/gd_actb.shtml

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