Aeolian and local climate impact


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Scientists have used the atmospheric model RAMS
(Regional Atmospheric Modeling System) to assess the impact that
could have a lot of wind turbines on the climate of the Grandes
Plains. Somnath Baidya Roy, of Princeton University (New
Jersey), and his colleagues simulated the presence of a fleet of 10000
giant wind turbines with 50 blades concentrated on 9300
square kilometers in northern Oklahoma. In this region, he
night there is a rapid wind that separates the cold, damp air near the
soil of the hot and dry one at altitude. Experience has shown that
turbines, capturing this current cause turbulence in
their wake which cause a vertical mixing of the air masses.
And when the hot air reaches the surface, we get the same type
climate impact than that produced by deforestation in
large scale. For now, these results are still only
preliminary, but they emphasize the importance of seeking to
improve the rotors of wind turbines to reduce turbulence.

NYT 02 / 11 / 04 (Catch the wind, the weather changes)
http://www.nytimes.com/2004/11/02/science/02obox.html

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