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Last modified
7/28/2009 2:35:03 PM
Creation date
4/11/2008 4:23:44 PM
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Weather Modification
Title
Discusison of "Weather Modification in Arizona in 1971" by Herbert A. Osborn
Date
6/1/1972
State
AZ
Weather Modification - Doc Type
Report
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<br />this concern, since it involves only JIOdel results for individual clouds <br />under a variety of climatic situations, incidentally showing that Arizona <br />has a higher frequency of weather conditions predictive of positive seed- <br />ing effects and a lower frequency for negative effects than does western <br />South Dakota. The Dennis and Schock quote that Osborn cited was baedi- <br />ately preceded by the words: ''The results quoted above have certain <br />implications for future seeding experiments in the Great Plains. Some <br />of these are:." Osborn does not give reasons for extrapolating the <br />application of the statement to Arizona. Wide-area effects cannot in <br />any event be dissociated from the treatment used. At least one recent <br />report (Simpson, et ai, 1972) indicates strongly positive wide-area <br />influence from the updraft seeding technique. Regardless of the outcome <br />of the continuing conversation begun by Warner's critique cited by <br />Osborn (Warner, 1970, 1972; Cotton, 1971; Weinstein, 1971; Simpson, 1972), <br />even Warner agreed that the Weinstein model used at Flagstaff "is the <br />best that is currently available and that it has been shown to be useful <br />in certain cloud-seeding experiments." <br /> <br />The Issue of Public Policy and Experimental Design <br /> <br />Finally, through his action in making substantially the same material <br />presented in this paper available for circulation to parties concerned <br />with public hearings on application for a weather modification license <br />in New Mexico (hearings which resulted in refusal of the license) and <br />through its presentation before the Arizona Cattle Growers Association <br />resulting in representations by that organization to the Governor of <br /> <br />13 <br />
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