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Regulations on Administration of Weather Modification
(Adopted at the 56th Executive Meeting of the State Council on March 13, 2002, promulgated by Decree No. 348 of the State Council of the People's Republic of China on March 19, 2002, and effective as of May 1, 2002)
Article 1These Regulations are formulated in accordance with the relevant provisions of the Meteorology Law of the People's Republic of China for the purpose of strengthening the administration of weather modification, and preparing against and mitigating meteorological disasters.
Article 2Weather modification activities carried out in the territory of the People's Republic of China shall be in conformity with these Regulations.
Article 3For the purpose of these Regulations, "weather modification" refers to the activities carried out for rain or snow enhancement, hail suppression, rain suppression, fog dispersal, or frost protection by exerting, under appropriate conditions, artificial influence on local atmospheric physical and chemical processes through scientific and technological means, so as to mitigate or avert meteorological disasters and properly exploit climatic resources.
Going forward, if you post something that is not 100% your own writing or work you must use the QUOTE BOX TAG, post NO MORE THAN 15% of the original (or three paragraphs, whichever is least), and GIVE A LINK TO THE SOURCE MATERIAL. If the work you are posting is not on the internet, from a book for example, you MUST give a credit for that Book ( the title), its Author and Publisher.
In January CBS News reported on bizarre geo-engineering experiments proposed for global warming reduction. The report confirmed that one of the methods advocated by physicist Edward Teller is to fill the atmosphere with metallic particles to "scatter away 1 or 2 percent of the sunlight...the sooner the better."
Last December, a Canadian citizen complaining to his local air authority about sky-muck over Victoria, British Columbia, was told by that authority that the chemtrail formations were the result of a joint U.S. and Canadian military exercise. His explanation was caught on audio tape and played for radio listeners all over the Western Hemisphere. (We have not yet heard whether this uniquely candid official has been boiled in oil). Also recently, an FAA official confirmed in a taped interview with freelance radio reporter S.T. Brendt that he was told on four occasions in March to re-route commercial air traffic to accommodate a huge military aerial operation over the northeastern seaboard.
We believe that, prior to any actual deployment of any scattering system aimed at full-scale 1% insolation modulation, completely transparent and fully international research in sub-scale could result in public opinion conducive to a reasonable technology-based approach to prevention of large-scale climatic failures of all types. International cooperation in the research phase, based on complete openness, is necessary and may be sufficient to secure the understanding and support without which any of these approaches will fail.
The purpose of this paper is not to advocate definite solutions. It is only to augment
the scientific effort to find solutions of general acceptability and benefit.
The blame for ''bad weather'' may be too heavy for any human to bear. But, we
hope, thinking before acting might be acceptable.
Originally posted by Tinkabit
And you have never noticed the difference between a normal contral rapidly dissipating, and a contrail at the same altitude that does not dissappear with seconds ?
Originally posted by AirTrafficController
Generally speaking, yes the further you go up the colder it is going to be, but that is only generally speaking. When wind is blowing, it's going to make the air colder (wind chill) and the wind might be blowing at one altitude, but only 10 feet above it the wind might not be blowing and the air might be warmer
Originally posted by Phage
Holy smoke! Picky, you found a previously unknown phenomenon hidden within the data. The number of months increases in a direct relationship to the... month!
There are no "seasons"...only temperature changes. In other words, it's constantly winter, up above us. Therefore, trails should form ALL THE TIME, not sporadically. It never gets above the freezing point, in the upper atmosphere, until you reach the thermosphere; where temperatures in this layer can be as high as 1200°C. Therefore, your theory is seriously flawed.
Maximum air temperature also occurs near the Earth's surface in this layer. With increasing height, air temperature drops uniformly with altitude at a rate of approximately 6.5° Celsius per 1000 meters. This phenomenon is commonly called the Environmental Lapse Rate. At an average temperature of -56.5° Celsius, the top of the troposphere is reached. At the upper edge of the troposphere is a narrow transition zone known as the tropopause. www.eoearth.org...
originally posted by: ImDaMan
Therefore, your theory is seriously flawed.
To answer this question, lets first identify what a contrail is. A contrail is the condensation trail that is left behind by a passing jet plane. Contrails form when hot humid air from jet exhaust mixes with environmental air of low vapor pressure and low temperature. Vapor pressure is just a fancy term for the amount of pressure that is exerted by water vapor itself (as opposed to atmospheric, or barometric, pressure which is due to the weight of the entire atmosphere above you). The mixing occurs directly behind the plane due to the turbulence generated by the engine. If condensation (conversion from a gas to a liquid) occurs, then a contrail becomes visible. Since air temperatures at these high atmospheric levels are very cold (generally colder than -40 F), only a small amount of liquid is necessary for condensation to occur. Water is a normal byproduct of combustion in engines.