On the measurement of stability parameter over complex mountainous terrain

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dc.contributor.authorCantero Nouqueret, Elena
dc.contributor.authorSanz, Javier
dc.contributor.authorBorbón, Fernando
dc.contributor.authorParedes, Daniel
dc.contributor.authorGarcía Gorostiaga, M. Almudena
dc.contributor.departmentInstitute of Smart Cities - ISCen
dc.date.accessioned2022-04-12T06:27:03Z
dc.date.available2022-04-12T06:27:03Z
dc.date.issued2022
dc.description.abstractAtmospheric stability has a significant effect on wind shear and turbulence intensity, and these variables, in turn, have a direct impact on wind power production and loads on wind turbines. It is therefore important to know how to characterise atmospheric stability in order to make better energy yield estimation in a wind farm. Based on the research-grade meteorological mast at Alaiz (CENER's test site in Navarre, Spain) named MP5, this work compares and evaluates different instrument set-ups and methodologies for stability characterisation, namely the Obukhov parameter, measured with a sonic anemometer, and the bulk Richardson number based on two temperature and one wind speed measurement. The methods are examined considering their theoretical background, implementation complexity, instrumentation requirements, and practical use in connection to wind energy applications. The sonic method provides a more precise local measurement of stability while the bulk Richardson is a simpler, robust and cost-effective technique to implement in wind assessment campaigns. Using the sonic method as a benchmark, it is shown that to obtain reliable bulk Richardson measurements in onshore sites it is necessary to install one of the temperature sensors close to the ground where the temperature gradient is stronger.en
dc.format.extent15 p.
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.5194/wes-7-221-2022
dc.identifier.issn2366-7443
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/42688
dc.language.isoengen
dc.publisherCopernicus Publicationsen
dc.relation.ispartofWind Energy Science, 7 (1), p. 221-235, 2022en
dc.relation.publisherversionhttps://doi.org/10.5194/wes-7-221-2022
dc.rights© 2022 Elena Cantero et al. Creative Commons Attribution 4.0 Internationalen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectAtmospheric stabilityen
dc.subjectComplex mountainous terrainen
dc.subjectWind poweren
dc.subjectSonic methoden
dc.subjectBulk Richardson numberen
dc.titleOn the measurement of stability parameter over complex mountainous terrainen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/publishedVersion
dspace.entity.typePublication
relation.isAuthorOfPublicationdf0793d3-73dc-4513-ae8b-235a1954685a
relation.isAuthorOfPublication.latestForDiscoverydf0793d3-73dc-4513-ae8b-235a1954685a

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