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Dr E. Wendell Hewson
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E. Wendell Hewson

There is vast energy available in the earth's winds for man's use. It is conservatively estimated that the wind power available to man is the equivalent of the output of 1000 typical fossil fueled or nuclear power plants of 1000 megawatts (MW) capacity each. By contrast, the water power potential of the earth is only one-tenth as large. Large wind generators have been built and used during the past 50 years. Research on wind power sites in the mountainous coastal and valley areas of the Pacific Northwest is being conducted. Terrain modification, aerogenerator “farms,” special duty installations, environmental impacts, land use, and net energy costs are all taken into consideration. It is concluded that wind power shows promise of supplying substantial amounts of supplementary electrical energy and that the development of this wind power potential should proceed with the federal government taking a lead role.

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Energy from the Wind

Testimony before the Subcommittee on Energy Research and Water Resources of the Interior Committee, U.S. Senate, 2 March 1976

E. Wendell Hewson
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moisture pollution of the atmosphere by cooling towers and cooling ponds

review of such possible meteorological problems as could be encountered from water vapor releases from cooling towers and cooling ponds

E. Wendell Hewson
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E. Wendell Hewson
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John E. Wade
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E. Wendell Hewson

Abstract

The use of trees as a local climatic wind indicator is described. Studies using trees as an indicator of prevailing wind direction, wind speed and as an evidence of the occurrence of severe winds are presented. This paper describes some of the limitations and practical applications of trees in local wind surveys.

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John E. Wade
and
E. Wendell Hewson

Abstract

No abstract available.

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Eugene W. Bierly
and
E. Wendell Hewson

Abstract

Experiments designed to measure atmospheric diffusion in transitional states have been carried out for several years over the western end of Lake Erie. The concept of diffusion in transitional states, both in general and for such a shoreline location, is described. The methods of data analysis which have been used are explained and their advantages and limitations outlined. Results of the experiments are presented in terms of Sutton's parameters n, C z and C y are generally larger than those which have been measured over more uniform sites. One experiment is described in detail to illustrate diffusion in a trasitional state which was due to the advection of warm air aloft.

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Eugene W. Bierly
and
E. Wendell Hewson

Abstract

There are several restrictive meteorological conditions that are of great importance in the design of stacks. The conditions considered are fumigation, fumigation, aerodynamic downwash, looping and trapping. Each condition is explained and formulae are given for the computation of ground level concentrations. Methods for determining the percentage of occurrence of these restrictive conditions from observed data are also discussed very briefly.

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Fred V. Brock
and
E. Wendell Hewson

Abstract

The analog computer has been used to obtain solutions to the diffusion equation for the case of a continuous point source aloft. The basic model used is that of a source located between an inversion and the ground where the wind speed and eddy diffusivity are constant over the diffusing region. Solutions were also obtained with several special features added to the basic model: representation of the eddy diffusivity as a function of distance downstream; presence of wind direction shear in the diffusing layers; and the presence of large-scale eddies which cause the meandering of the plume.

The solutions are presented as deviations from the reference solution, that solution derived from the basic model, to show graphically the effects of each parameter change.

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