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Resource Documents: Siting (111 items)
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Wake-induced variations in noise levels and amplitude modulation for two interacting wind turbines
Author: Colas, Jules; Emmanuelli, Ariane; Dragna, Didier; and Stevens, Richard
[Abstract] The influence of turbine–turbine interactions on sound propagation is investigated using numerical simulations. Three configurations are examined: turbines aligned downstream of each other, placed side by side, and arranged in a staggered pattern. The simulation framework combines large-eddy simulations for aerodynamic interactions, an aeroacoustic source model to simulate turbine sound emission, and parabolic equation methods for sound propagation. When a second turbine is positioned directly downstream, wake-induced flow focusing enhances sound pressure levels (SPL) and amplitude modulation (AM) by . . .
More »Erfassung der nordwestlichen deutschen AWZ im Herbst
Author: Dierschke, Volker; and Borkenhagen, Kai
[Bird and marine mammal surveys in German North Sea zones designated for offshore windpower development – The survey flights (September 9 and 29, 2025) were carried out by the umbrella organization of German avifaunists (DDA) as part of the marine biodiversity monitoring of the Federal Agency for Nature Conservation (BfN).] Die Flüge wurden vom Dachverband Deutscher Avifaunisten e.V. (DDA) im Rahmen des Marinen Biodiversitätsmonitorings des Bundesamtes für Naturschutz (BfN) durchgeführt. Bericht: Volker Dierschke, Kai Borkenhagen Bedingungen / Weter: 9.9. Wenig Wind . . .
More »Wind of Change: Mapping Wind Energy Growth and Multi-Species Vulnerability in Sardinia, Mediterranean
Author: Costantino, Chiara; et al.
ABSTRACT: The rapid expansion of wind energy across the Mediterranean region calls for more advanced tools to assess and mitigate its impacts on biodiversity. In this study, we present an innovative approach combining 13-year satellite imagery analysis and ecological modelling to assess the spatiotemporal overlap between wind energy development and habitat suitability for multiple vulnerable raptor species. We reconstructed a spatio-temporal trajectory of wind turbine distribution using high-resolution satellite images, meaning we quantified how and where turbines were installed over . . .
More »Impact of a two-dimensional steep hill on wind turbine noise propagation
Author: Colas, Jules; et al.
Abstract— Wind turbine noise propagation in a hilly terrain is studied through numerical simulation in different scenarios. Linearized Euler equations are solved in a moving frame that follows the wavefront, and wind turbine noise is modeled with an extended moving source. We employ large-eddy simulations to simulate the flow around the hill and the wind turbine. The sound pressure levels (SPLs) obtained for a wind turbine in front of a 2D hill and a wind turbine on a hilltop are . . .
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