Profiles of Wind and Turbulence in the Coastal Atmospheric Boundary Layer of Lake Erie

Handle URI:
http://hdl.handle.net/10754/550187
Title:
Profiles of Wind and Turbulence in the Coastal Atmospheric Boundary Layer of Lake Erie
Authors:
Wang, H; Barthelmie, R J; Crippa, P; Doubrawa, P; Pryor, S C
Abstract:
Prediction of wind resource in coastal zones is difficult due to the complexity of flow in the coastal atmospheric boundary layer (CABL). A three week campaign was conducted over Lake Erie in May 2013 to investigate wind characteristics and improve model parameterizations in the CABL. Vertical profiles of wind speed up to 200 m were measured onshore and offshore by lidar wind profilers, and horizontal gradients of wind speed by a 3-D scanning lidar. Turbulence data were collected from sonic anemometers deployed onshore and offshore. Numerical simulations were conducted with the Weather Research Forecasting (WRF) model with 2 nested domains down to a resolution of 1-km over the lake. Initial data analyses presented in this paper investigate complex flow patterns across the coast. Acceleration was observed up to 200 m above the surface for flow coming from the land to the water. However, by 7 km off the coast the wind field had not yet reached equilibrium with the new surface (water) conditions. The surface turbulence parameters over the water derived from the sonic data could not predict wind profiles observed by the ZephlR lidar located offshore. Horizontal wind speed gradients near the coast show the influence of atmospheric stability on flow dynamics. Wind profiles retrieved from the 3-D scanning lidar show evidence of nocturnal low level jets (LLJs). The WRF model was able to capture the occurrence of LLJ events, but its performance varied in predicting their intensity, duration, and the location of the jet core.
KAUST Department:
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division; Earth Science and Engineering Program
Citation:
Profiles of Wind and Turbulence in the Coastal Atmospheric Boundary Layer of Lake Erie 2014, 524:012117 Journal of Physics: Conference Series
Publisher:
IOP Publishing
Journal:
Journal of Physics: Conference Series
Conference/Event name:
5th Science of Making Torque from Wind Conference, TORQUE 2014
Issue Date:
16-Jun-2014
DOI:
10.1088/1742-6596/524/1/012117
Type:
Conference Paper
ISSN:
1742-6596
Additional Links:
http://stacks.iop.org/1742-6596/524/i=1/a=012117?key=crossref.1d1fdc68262f957cc1b7eb60f8967390
Appears in Collections:
Conference Papers; Earth Science and Engineering Program; Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

Full metadata record

DC FieldValue Language
dc.contributor.authorWang, Hen
dc.contributor.authorBarthelmie, R Jen
dc.contributor.authorCrippa, Pen
dc.contributor.authorDoubrawa, Pen
dc.contributor.authorPryor, S Cen
dc.date.accessioned2015-04-16T13:48:20Zen
dc.date.available2015-04-16T13:48:20Zen
dc.date.issued2014-06-16en
dc.identifier.citationProfiles of Wind and Turbulence in the Coastal Atmospheric Boundary Layer of Lake Erie 2014, 524:012117 Journal of Physics: Conference Seriesen
dc.identifier.issn1742-6596en
dc.identifier.doi10.1088/1742-6596/524/1/012117en
dc.identifier.urihttp://hdl.handle.net/10754/550187en
dc.description.abstractPrediction of wind resource in coastal zones is difficult due to the complexity of flow in the coastal atmospheric boundary layer (CABL). A three week campaign was conducted over Lake Erie in May 2013 to investigate wind characteristics and improve model parameterizations in the CABL. Vertical profiles of wind speed up to 200 m were measured onshore and offshore by lidar wind profilers, and horizontal gradients of wind speed by a 3-D scanning lidar. Turbulence data were collected from sonic anemometers deployed onshore and offshore. Numerical simulations were conducted with the Weather Research Forecasting (WRF) model with 2 nested domains down to a resolution of 1-km over the lake. Initial data analyses presented in this paper investigate complex flow patterns across the coast. Acceleration was observed up to 200 m above the surface for flow coming from the land to the water. However, by 7 km off the coast the wind field had not yet reached equilibrium with the new surface (water) conditions. The surface turbulence parameters over the water derived from the sonic data could not predict wind profiles observed by the ZephlR lidar located offshore. Horizontal wind speed gradients near the coast show the influence of atmospheric stability on flow dynamics. Wind profiles retrieved from the 3-D scanning lidar show evidence of nocturnal low level jets (LLJs). The WRF model was able to capture the occurrence of LLJ events, but its performance varied in predicting their intensity, duration, and the location of the jet core.en
dc.publisherIOP Publishingen
dc.relation.urlhttp://stacks.iop.org/1742-6596/524/i=1/a=012117?key=crossref.1d1fdc68262f957cc1b7eb60f8967390en
dc.rightsContent from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.en
dc.titleProfiles of Wind and Turbulence in the Coastal Atmospheric Boundary Layer of Lake Erieen
dc.typeConference Paperen
dc.contributor.departmentComputer, Electrical and Mathematical Sciences and Engineering (CEMSE) Divisionen
dc.contributor.departmentEarth Science and Engineering Programen
dc.identifier.journalJournal of Physics: Conference Seriesen
dc.conference.date2014-06-18 to 2014-06-20en
dc.conference.name5th Science of Making Torque from Wind Conference, TORQUE 2014en
dc.conference.locationCopenhagen, DNKen
dc.eprint.versionPublisher's Version/PDFen
dc.contributor.institutionAtmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405Atmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405Atmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405Atmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405Atmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405Atmospheric Science Program, Department of Geological Sciences, Indiana University, Bloomington, IN47405en
kaust.authorCrippa, Paolaen
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