Flow in complex terrain: the Perdigão campaigns (WES/ACP/AMT inter-journal SI)(WES/ACP/AMT inter-journal SI)
Flow in complex terrain: the Perdigão campaigns (WES/ACP/AMT inter-journal SI)(WES/ACP/AMT inter-journal SI)
Editor(s): Laura Bianco, Julie Lundquist, Jose Laginha Palma, and Steve Oncley Special issue jointly organized between Wind Energy Science, Atmospheric Chemistry and Physics, and Atmospheric Measurement Techniques
The Perdigão field campaigns probed atmospheric flow in and around a double-ridge valley in Portugal equipped with one turbine, collecting data critical for improving fundamental insights into flow in complex terrain as well as methods for quantifying wind resources. While the Perdigão 2015 campaign pioneered coordinated scans from three scanning lidars, Perdigão 2017 included an unprecedented array of instrumentation, including 30 scanning and profiling lidars to map the valley's atmosphere. An array of approximately 50 towers, equipped with sonic anemometers and ranging in height from 10 to 100 m, provided in situ measurements to measure air flow and turbulence. Radiosondes, thermistor arrays, microwave radiometers, and an Atmospheric Emitted Radiance Interferometer (AERI) measure temperature structure. Acoustic measurements, seismographic measurements, and tethered systems measuring high-rate turbulence data also provide unique insights into the numerous flow phenomena observed in the valley. In addition to studying complex terrain effects on the wind resource and wind turbine wakes, the Perdigão data enable insights into interactions between flows of different scales, effects of topographic and diurnal thermal forcing, valley/slope boundary layers, and recirculations within the valley.

This special issue is open for all submissions within its scope, addressing measurements, simulations, and case studies from both Perdigão field campaigns.

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05 Nov 2020
The digital terrain model in the computational modelling of the flow over the Perdigão site: the appropriate grid size
José M. L. M. Palma, Carlos A. M. Silva, Vítor C. Gomes, Alexandre Silva Lopes, Teresa Simões, Paula Costa, and Vasco T. P. Batista
Wind Energ. Sci., 5, 1469–1485, https://doi.org/10.5194/wes-5-1469-2020,https://doi.org/10.5194/wes-5-1469-2020, 2020
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24 Aug 2020
Multi-lidar wind resource mapping in complex terrain
Robert Menke, Nikola Vasiljević, Johannes Wagner, Steven P. Oncley, and Jakob Mann
Wind Energ. Sci., 5, 1059–1073, https://doi.org/10.5194/wes-5-1059-2020,https://doi.org/10.5194/wes-5-1059-2020, 2020
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26 Jul 2020
Decreasing wind speed extrapolation error via domain-specific feature extraction and selection
Daniel Vassallo, Raghavendra Krishnamurthy, and Harindra J. S. Fernando
Wind Energ. Sci., 5, 959–975, https://doi.org/10.5194/wes-5-959-2020,https://doi.org/10.5194/wes-5-959-2020, 2020
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24 Mar 2020
Analysis of flow in complex terrain using multi-Doppler lidar retrievals
Tyler M. Bell, Petra Klein, Norman Wildmann, and Robert Menke
Atmos. Meas. Tech., 13, 1357–1371, https://doi.org/10.5194/amt-13-1357-2020,https://doi.org/10.5194/amt-13-1357-2020, 2020
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05 Dec 2019
Estimation of turbulence dissipation rate from Doppler wind lidars and in situ instrumentation for the Perdigão 2017 campaign
Norman Wildmann, Nicola Bodini, Julie K. Lundquist, Ludovic Bariteau, and Johannes Wagner
Atmos. Meas. Tech., 12, 6401–6423, https://doi.org/10.5194/amt-12-6401-2019,https://doi.org/10.5194/amt-12-6401-2019, 2019
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18 Nov 2019
On the self-similarity of wind turbine wakes in a complex terrain using large eddy simulation
Arslan Salim Dar, Jacob Berg, Niels Troldborg, and Edward G. Patton
Wind Energ. Sci., 4, 633–644, https://doi.org/10.5194/wes-4-633-2019,https://doi.org/10.5194/wes-4-633-2019, 2019
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28 Jun 2019
Automated wind turbine wake characterization in complex terrain
Rebecca J. Barthelmie and Sara C. Pryor
Atmos. Meas. Tech., 12, 3463–3484, https://doi.org/10.5194/amt-12-3463-2019,https://doi.org/10.5194/amt-12-3463-2019, 2019
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25 Mar 2019
Characterizing wind gusts in complex terrain
Frederick Letson, Rebecca J. Barthelmie, Weifei Hu, and Sara C. Pryor
Atmos. Chem. Phys., 19, 3797–3819, https://doi.org/10.5194/acp-19-3797-2019,https://doi.org/10.5194/acp-19-3797-2019, 2019
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01 Mar 2019
Characterization of flow recirculation zones at the Perdigão site using multi-lidar measurements
Robert Menke, Nikola Vasiljević, Jakob Mann, and Julie K. Lundquist
Atmos. Chem. Phys., 19, 2713–2723, https://doi.org/10.5194/acp-19-2713-2019,https://doi.org/10.5194/acp-19-2713-2019, 2019
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29 Jan 2019
Long-term simulation of the boundary layer flow over the double-ridge site during the Perdigão 2017 field campaign
Johannes Wagner, Thomas Gerz, Norman Wildmann, and Kira Gramitzky
Atmos. Chem. Phys., 19, 1129–1146, https://doi.org/10.5194/acp-19-1129-2019,https://doi.org/10.5194/acp-19-1129-2019, 2019
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10 Oct 2018
Does the wind turbine wake follow the topography? A multi-lidar study in complex terrain
Robert Menke, Nikola Vasiljević, Kurt S. Hansen, Andrea N. Hahmann, and Jakob Mann
Wind Energ. Sci., 3, 681–691, https://doi.org/10.5194/wes-3-681-2018,https://doi.org/10.5194/wes-3-681-2018, 2018
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28 Jun 2018
Wind turbine wake measurements with automatically adjusting scanning trajectories in a multi-Doppler lidar setup
Norman Wildmann, Nikola Vasiljevic, and Thomas Gerz
Atmos. Meas. Tech., 11, 3801–3814, https://doi.org/10.5194/amt-11-3801-2018,https://doi.org/10.5194/amt-11-3801-2018, 2018
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