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Last modified
7/28/2009 2:33:21 PM
Creation date
3/5/2008 10:45:19 AM
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Weather Modification
Title
The National Weather Modification Plan
Prepared For
CAO Subcommittee on Weather Modification
Prepared By
The Working Group of the CAO Subcommittee on Weather Modification
Date
2/13/1981
Weather Modification - Doc Type
Report
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<br />dollars. A 20-percent reduction of maximum surface winds associated with <br />hurricanes reaching land could reduce this loss by about $100 mUlion, and <br />abatement of severe storms would further reduce property damage and loss or <br />life. Information gained during weather modification research will contribute <br />to improved forecasting and warning systems for these events. Airport fog <br />dispersal would provide safer airport operations. Some reduction from the <br />$300 million losses incurred in fog-associated vehicle accidents may be <br />possible, although widespread dispersal of fog from roads Sand highways <br />probably will not be feasible for the foreseeable future. Protection from <br />freeze and frost damage has been available for many years, and new techniques <br />are being studied. <br /> <br />The most direct transportation benefits from weather modification center <br />on fog dispersal at airports. The direct costs to airlines of fog-caused <br />delays in arrivals and departures are substantial, and the indirect costs co <br />the affected travelers can be equally high. The average cost per airport-hour <br />may be close to $50,000 for delays due to fog, and losses due to dense fog may <br /> <br />. <br /> <br />Table II-4--Annual Loss of Life and Property Damage frgm Weather-Related <br />Disasters and Hazards in the United Scates <br /> <br />Weather hazard <br /> <br />Loss of life <br /> <br />Property damage <br />(bUlions of dollars) <br /> <br />Hurricanes <br />To rnadoes <br />Hail <br />Lightning <br />Fog <br />Floods <br />Frost (agriculture) <br />Drought <br /> <br />30 <br />140 <br /> <br />0.8 <br />0.4 <br />0.8 <br />0.1 <br />0.5 <br />2.3 <br />1.1 <br />0.7 <br /> <br />110 <br />1,000 <br />240 <br /> <br />Total <br /> <br />1 ,520 <br /> <br />6.7 <br /> <br />exceed $37 million for tour winter months.4 Seeding Co dissipate supercooled <br />fog is an operational technology. During the 1963-64 winter, for ~~ample, <br />United Airlines showed an estimated benefit of $19,000 for cold-fog dispersal <br />at two airports at a cost of $3,825, about a 5-to-l benefiC-cost ratio. <br />Unfortunately, cold fogs constitute only about 5 percent of the economically <br /> <br />5 'weather :1odification: Programs, Problems, Policy, and Potential," Committee <br />on Commerce, Science, and Transportation, United SCates Senate, Government <br />Printing Office, Washington D.C., 746 PP', May 1978. <br /> <br />6U.S. Domestic Council, Environmental Resources Committee, Subcommittee on <br />Climate Change, "The Federal Role in Weather Modification," ? 2, December <br />1 975. <br /> <br />- 11 - <br />
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