Last edited by Garamar
Monday, August 3, 2020 | History

3 edition of Cloud seeding in Rhodesia, 1970/71 found in the catalog.

Cloud seeding in Rhodesia, 1970/71

D. L. McNaughton

Cloud seeding in Rhodesia, 1970/71

by D. L. McNaughton

  • 210 Want to read
  • 37 Currently reading

Published by Rhodesia, Dept. of Meteorological Services in Salisbury .
Written in English

    Places:
  • Zimbabwe.
    • Subjects:
    • Rain-making -- Zimbabwe.

    • Edition Notes

      Statementby D.L. McNaughton.
      SeriesMeteorological notes. Series A ;, no. 35, Meteorological notes (Southern Rhodesia. Dept. of Meteorological Services)., no. 35.
      Classifications
      LC ClassificationsQC928.74.Z55 M36
      The Physical Object
      Pagination17 leaves :
      Number of Pages17
      ID Numbers
      Open LibraryOL3865535M
      LC Control Number81187101

      Cloud Seeding: Potential Benefits for Kansas Agriculture Laurence Dean Bark, Orlan H. Buller, R. L. Vanderlip Agricultural Experiment Station, Kansas State University, Manhattan, - Crops and climate .   Much of her poetry in Cloud Seeding deals with Wyoming's past or present and, like all of her work in the book, does so in strikingly fresh and thoughtful ways." -- Robert Roripaugh Product details. Series: Poetry of the American West; Paperback: 69 pages; Publisher: High .

      Weather Modification, a.k.a Cloud Seeding, a Technology Whose Time Has Come. Back to Spring Newsletter. Little did Dr. Vincent Schafer realize, while working in a General Electric laboratory in , that he would stumble upon the first scientific indication that man might beneficially modify clouds. Cloud Seeding is a photo book that came about after sitting on my patio looking out the door and wondering what could I do to give myself a different view. I wondered to myself what would it look like if when I looked out the door I saw clouds.

        An obvious hole in a stratus deck due to cloud seeding with aircraft, using dry ice as a seeding agent. This is an example of cold cloud seeding, where supercooled cloud droplets are converted into ice crystals, which then precipitate out of the cloud deck. (USAF photo; boxed caption in the lower right reads “Effects of seeding Altostratus. Due to seeding, supercooled liquid water is converted into ice particles, releasing latent heat, increasing buoyancy, and thereby invigorating cloud updrafts. In favorable conditions, this will cause the cloud to grow larger, process more water vapor, and yield more precipitation (Bruintjes, ).


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Cloud seeding in Rhodesia, 1970/71 by D. L. McNaughton Download PDF EPUB FB2

The first experiments with cloud seeding were conducted in by American chemist and meteorologist Vincent J. Schaefer, and since then seeding has been performed from aircraft, rockets, cannons, and ground generators.

Many substances have been used, but solid carbon dioxide and silver iodide have been the 1970/71 book effective; when used in supercooled clouds (composed of water droplets at. Cloud seeding is a type of weather modification that aims to change the amount or type of precipitation that falls from clouds by dispersing substances into the air that serve as cloud condensation or ice nuclei, which alter the microphysical processes within the usual intent is to increase precipitation (rain or snow), but hail and fog suppression are also widely practised in.

Nevertheless, indications are that cloud-seeding operations more than pay for themselves, although not to the extent that all possible doubt can be excluded. David L. McNaughton Ina 'summary article' was published in the Zimbabwe Journal of Agricultural Resea pagesentitled "Effect of cloud-seeding on water-stress of maize.

However, when Battan () first published his book inhe came to the conclusion that despite the evidence that cloud seeding leads to the enhancement of precipitation on the ground, more scientific knowledge was needed to better understand the physical mechanisms involved.

He cited a report published in by the World Meteorological. A cloud-seeding season in north-east Zimbabwe was simulated by a model in which showers 1970/71 book distributed at random within a rectangular area, enabling total extra rainfall to be computed at.

Cloud seeding offers a potential solution to this, and the wondrous thing is, it can be used literally worldwide theoretically. Cloud seeding is process of spreading chemicals like dry ice to forcefully make clouds undergo precipitation to form frozen ice drops.

Results of experimental cloud-seeding in Zimbabwe indicate that silver iodide treatment enhances rainfall if cloud-tops are colder than °C. Still higher increases result if tops are colder.

In Aprilintensive cloud-seeding operations in the Al Quaa region of Abu Dhabi coincided with a monthly rainfall of mm — which is significant given that the average April rainfall level.

­Cloud seeding is quite expensive, though potentially cheaper than other projects, like diverting rivers, building new canals or improving irrigation systems.

Then again, the allure of cloud seeding may redirect attention and funding from other projects that could be more promising. Then there are questions about altering weather. Cloud seeding has also had some unforeseen and undesirable effects.

China used cloud seeding in to attempt to end a drought, but it led to a sudden temperature drop, causing closed highways. The book covers the topic of chemicals in our sky and how the have been increased the the shady-or-side of man kind.

This is a must read for everyone. Read more. 8 people found this helpful. Helpful. Comment Report abuse. Tim Haldeman. out of 5 Reviews:   4 The UAE Is One Of The First Arabian Countries To Cloud Seed. Always known to be at the cutting edge of technology and development, perhaps it is no surprise that the United Arab Emirates is one of the first Arabian countries to use and develop cloud seeding technologies and programs.

Using satellites and radar, all aspects of the weather around all areas of the country are monitored 24 hours. Natural seeding may be significant in cases where ice crystals from a high 'releaser' cloud (e.g.

altostratus or cirrostratus) fall into a supercooled water 'spender' cloud (e.g. nimbostratus) and encourage ice-crystal growth. Most methods of limiting the development of hail rely on cloud seeding using ice nucleants, or with silver oxide.

Cloud Physics and Cloud Seeding. Louis J. Battan. Anchor Books, - Cloud physics - pages. 0 Reviews. From inside the book. What people are saying - Write a review. We haven't found any reviews in the usual places. Contents. THE SCIENCE STUDY SERIES vii. It is an understatement to say that people are confused about cloud seeding.

While it has been called "the crime of the century" and outlawed in Pennsylvania, the governments of the dry, western part of the United States continue to spend tax revenues on cloud seeding to increase water supplies.

During the past five years, I have talked with officials responsible for decisions regarding cloud. Cloud Seeding Concepts Crop duster-turned cloud seeder disperses salt powder milled to 2 to 5 microns for optimal hygroscopic seeding over the Galilee in northern Israel.

Photo: D. Rosenfeld 16 • March/April • Southwest Hydrology. CLOUD SEEDING. What is cloud seeding. It is a scientific procedure of weather manipulation that alters a cloud’s capability to produce rainfall by dispersing cloud condensation agents into the air. These agents act as ice nuclei and basically manipulate the intrinsic mechanisms of cloud formation.

There are three types of cloud seeding. Cloud seeding has mainly been used for the initiation or augmentation of precipitation, the suppression of hail, the augmentation of orographic snow, and fog dispersal.

Other cloud seeding efforts have attempted to change the course of hurricanes, dissipate rain clouds to alleviate flooding, and suppress lightning to prevent forest fires. The report is based on four years of data on the large scale effects of cloud seeding.

The study was conducted in the area surrounding a randomized seeding project in Santa Barbara County, California sponsored by the Naval Weapons Center, China Lake, California. Seeding was accomplished from a point source using pyrotechnic seeding devices.

The cloud seeding program is designed with the use of public money over private land without voter approval or landowners permission. If private land or public health is compromised, then the program should be held liable.

In the past, a Texas rancher was able to stop cloud seeding over private land based on trespassing and nuisance law. A cloud seeding program in the region could cost $27 to $ per acre-foot of water in a low cost scenario and $53 to $ per acre-foot in a high-cost scenario.Apr.

04, - Do-It-Yourself Rainmaker: Britain is experimenting with a small rainmaker that could avoid the expense of cloud-seeding from a plane.

The machine burns a fuel containing silver iodide particles and invisible smoke is carried upward by ordinary air movements with the idea of forming ice crystals in the clouds which grown and.Guidelines for Cloud Seeding to Augment Precipitation provides practical details of using the cloud seeding technology.

This newly revised manual incorporates pertinent background on the science and practice of weather modification by cloud seeding to augment precipitation.