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Multi-lidar wind resource mapping in complex terrain

Menke, Robert and Vasiljević, Nikola and Wagner, Johannes and Oncley, Steven P. and Mann, Jakob (2020) Multi-lidar wind resource mapping in complex terrain. Wind Energy Science, 5 (3), pp. 1059-1073. Copernicus Publications. doi: 10.5194/wes-5-1059-2020. ISSN 2366-7443.

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Scanning Doppler lidars have great potential for reducing uncertainty of wind resource estimation in complex terrain. Due to their scanning capabilities, they can measure at multiple locations over large areas. We demonstrate this ability using dual-Doppler lidar measurements of flow over two parallel ridges. The data have been collected using two pairs of long-range WindScanner systems operated in a dual-Doppler mode during the Perdigão 2017 measurement campaign. The lidars mapped the flow along the southwest and northeast ridges 80 m above ground level. By nalyzing the collected data, we found that for different flow nditions on average wind speeds are 10% higher over the outhwest ridge compared to the northeast ridge. At the southwest ridge, the data shows, depending on the atmospheric conditions, a change of 20% in wind speed along the ridge. For the measurement period, we have simulated the flow over the site using WRF-LES to compare how well the model can capture wind resources along the ridges. We used two model configurations. In the first configuration, surface drag is based purely on aerodynamic roughness whereas in the second configuration forest canopy drag is also considered.

Item URL in elib:https://elib.dlr.de/135536/
Document Type:Article
Title:Multi-lidar wind resource mapping in complex terrain
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Menke, RobertTechnical University of Denmark, Roskilde, DenmarkUNSPECIFIED
Vasiljević, NikolaTechnical University of Denmark, Roskilde, DenmarkUNSPECIFIED
Oncley, Steven P.NCAR, Boulder, CO, USAUNSPECIFIED
Mann, JakobTechnical University of Denmark, Roskilde, DenmarkUNSPECIFIED
Journal or Publication Title:Wind Energy Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 1059-1073
Publisher:Copernicus Publications
Keywords:Perdigão 2017, doppler lidar, WRF-LES
HGF - Research field:Energy
HGF - Program:Renewable Energies
HGF - Program Themes:Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:21 Jul 2020 17:02
Last Modified:27 Nov 2020 15:38

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