Resource Documents: New Mexico (2 items)
Unless indicated otherwise, documents presented here are not the product of nor are they necessarily endorsed by National Wind Watch. These resource documents are provided to assist anyone wishing to research the issue of industrial wind power and the impacts of its development. The information should be evaluated by each reader to come to their own conclusions about the many areas of debate. • The copyrights reside with the sources indicated. As part of its noncommercial effort to present the environmental, social, scientific, and economic issues of large-scale wind power development to a global audience seeking such information, National Wind Watch endeavors to observe “fair use” as provided for in section 107 of U.S. Copyright Law and similar “fair dealing” provisions of the copyright laws of other nations.
Author: Marcillo, Omar; et al.
Infrasound from a 60‐turbine wind farm was found to propagate to distances up to 90 km under nighttime atmospheric conditions. Four infrasound sensor arrays were deployed in central New Mexico in February 2014; three of these arrays captured infrasound from a large wind farm. The arrays were in a linear configuration oriented southeast with 13, 54, 90, and 126 km radial distances and azimuths of 166°, 119°, 113°, and 111° from the 60 1.6 MW turbine Red Mesa Wind Farm, Laguna Pueblo, New Mexico, USA. Peaks at a fundamental frequency slightly below 0.9 Hz and its harmonics characterize the spectrum of the detected infrasound. The generation of this signal is linked to the interaction of the blades, flow gradients, and the supporting tower. The production of wind‐farm sound, its propagation, and detection at long distances can be related to the characteristics of the atmospheric boundary layer. First, under stable conditions, mostly occurring at night, winds are highly stratified, which enhances the production of thickness sound and the modulation of other higher‐frequency wind turbine sounds. Second, nocturnal atmospheric conditions can create low‐altitude waveguides (with altitudes on the order of hundreds of meters) allowing long‐distance propagation. Third, night and early morning hours are characterized by reduced background atmospheric noise that enhances signal detectability. This work describes the characteristics of the infrasound from a quasi‐continuous source with the potential for long‐range propagation that could be used to monitor the lower part of the atmospheric boundary layer.
Omar Marcillo, Philip Blom, Earth and Environmental Science, Los Alamos National Laboratory, Los Alamos, New Mexico
Stephen Arrowsmith, Kyle Jones, Sandia National Laboratories, Albuquerque, New Mexico
Journal of Geophysical Research: Atmosphere, 120, 9855–9868, doi:10.1002/2014JD022821.
Alberta, Arizona, Australia, California, Connecticut, Delaware, Denmark, Germany, Grid, Idaho, Illinois, Indiana, Iowa, Ireland, Italy, Latvia, Lithuania, Maine, Manitoba, Massachusetts, Michigan, Minnesota, Netherlands, New Hampshire, New Mexico, North Dakota, Ontario, Oregon, Poland, Portugal, Rhode Island, Spain, U.K., Washington •
Author: National Wind Watch
Mark Richey Woodworking, Newburyport, Massachusetts: hourly, daily, monthly production of a 600-kW turbine since June 2009 (100% daily generation would be 14,400 kWh)