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Complex terrain experiments in the New European Wind Atlas

: Mann, J.; Angelou, N.; Arnqvist, J.; Callies, D.; Cantero, E.; Chávey Arroyo, R.; Courtney, M.; Cuxart, J.; Dellwik, E.; Gottschall, J.; Ivanell, S.; Kühn, P.; Lea, G.; Matos, J.C.; Palma, J.L.M.L.; Pauscher, L.; Pena, A.; Sanz Rodrigo, J.; Söderberg, S.; Vasiljevic, N.; Vaiga Rodrigues, C.

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Philosophical Transactions of the Royal Society of London. Series A 375 (2017), No.2091, Art. 20160101, 23 pp.
ISSN: 0080-4614
ISSN: 0962-8428
ISSN: 1364-503X
ISSN: 0264-3820
ISSN: 1471-2962
Bundesministerium fur Wirtschaft und Energie BMWi (Deutschland)
0325832A/B; NEWA
New European Wind Atlas
Journal Article, Electronic Publication
Fraunhofer IWES ()
complex terrain; meteorological experiment

The New European Wind Atlas project will create a freely accessible wind atlas covering Europe and Turkey, develop the model chain to create the atlas and perform a series of experiments on flow in many different kinds of complex terrain to validate the models. This paper describes the experiments of which some are nearly completed while others are in the planning stage. All experiments focus on the flow properties that are relevant for wind turbines, so the main focus is the mean flow and the turbulence at heights between 40 and 300 m. Also extreme winds, wind shear and veer, and diurnal and seasonal variations of the wind are of interest. Common to all the experiments is the use of Doppler lidar systems to supplement and in some cases replace completely meteorological towers. Many of the lidars will be equipped with scan heads that will allow for arbitrary scan patterns by several synchronized systems. Two pilot experiments, one in Portugal and one in Germany, show the value of using multiple synchronized, scanning lidar, both in terms of the accuracy of the measurements and the atmospheric physical processes that can be studied. The experimental data will be used for validation of atmospheric flow models and will by the end of the project be freely available.
This article is part of the themed issue ‘Wind energy in complex terrains’.