Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches

Often in agrometeorology the instrumentation required to estimate turbulent surface fluxes must be installed at sites where fetch is not sufficient for a sector of wind directions. For different integrated flux-footprints (IFFP) thresholds and taking as a reference the half-hourly latent heat fluxes...

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Autores: Castellví Sentís, Francesc, Gavilán, Pedro
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/70918
Acceso en línea:https://doi.org/10.3390/atmos12030322
http://hdl.handle.net/10459.1/70918
Access Level:acceso abierto
Palabra clave:Evapotranspiration
Surface energy balance
Weighing lysimeter
Eddy covariance
Surface renewal analysis
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spelling Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different FetchesCastellví Sentís, FrancescGavilán, PedroEvapotranspirationSurface energy balanceWeighing lysimeterEddy covarianceSurface renewal analysisOften in agrometeorology the instrumentation required to estimate turbulent surface fluxes must be installed at sites where fetch is not sufficient for a sector of wind directions. For different integrated flux-footprints (IFFP) thresholds and taking as a reference the half-hourly latent heat fluxes (LE) measured with a large weighing lysimeter (LELys), the eddy covariance (EC) method and two methods based on surface renewal (SR) analysis to estimate LE were tested over short fescue grass. One method combined SR with the flux-gradient (profile) relationship, SR-P method, and the other with the dissipation method, SR-D method. When LE was estimated using traces of air moisture, good performances were obtained using the EC and the SR-P methods for samples with IFFP higher than 85%. However, the closest LE estimates were obtained using the residual method. For IFFP higher than 50%, the residual method combined with the sensible heat flux estimates determined using the SR-P method performed close to LELys and using the SR-D method good estimates were obtained for accumulated LELys. To estimate the sensible heat flux, the SR-D method can be recommended for day-to-day use by farmers because it is friendly and affordable.This research was funded by the National Research Institute of Agriculture and Food Technology (INIA) under the Project RTA2008-00006-CO2-01 and RTI2018-098693-B-C31Ministerio de Economía y Competitividad of Spain.MDPI2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://doi.org/10.3390/atmos12030322http://hdl.handle.net/10459.1/70918reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)Inglésinfo:eu-repo/grantAgreement/MICINN//RTA2008-00006-C02-01info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098693-B-C31info:eu-repo/grantAgreement/MICINN//RTA2008-00006-C02-02Reproducció del document publicat a: https://doi.org/10.3390/atmos12030322Atmosphere, 2021, vol. 12, núm. 3, p. 322cc-by (c) Castellví Sentís et al., 2021info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/oai:repositori.udl.cat:10459.1/709182026-06-24T12:42:17Z
dc.title.none.fl_str_mv Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
title Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
spellingShingle Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
Castellví Sentís, Francesc
Evapotranspiration
Surface energy balance
Weighing lysimeter
Eddy covariance
Surface renewal analysis
title_short Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
title_full Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
title_fullStr Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
title_full_unstemmed Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
title_sort Estimation of the Latent Heat Flux over Irrigated Short Fescue Grass for Different Fetches
dc.creator.none.fl_str_mv Castellví Sentís, Francesc
Gavilán, Pedro
author Castellví Sentís, Francesc
author_facet Castellví Sentís, Francesc
Gavilán, Pedro
author_role author
author2 Gavilán, Pedro
author2_role author
dc.subject.none.fl_str_mv Evapotranspiration
Surface energy balance
Weighing lysimeter
Eddy covariance
Surface renewal analysis
topic Evapotranspiration
Surface energy balance
Weighing lysimeter
Eddy covariance
Surface renewal analysis
description Often in agrometeorology the instrumentation required to estimate turbulent surface fluxes must be installed at sites where fetch is not sufficient for a sector of wind directions. For different integrated flux-footprints (IFFP) thresholds and taking as a reference the half-hourly latent heat fluxes (LE) measured with a large weighing lysimeter (LELys), the eddy covariance (EC) method and two methods based on surface renewal (SR) analysis to estimate LE were tested over short fescue grass. One method combined SR with the flux-gradient (profile) relationship, SR-P method, and the other with the dissipation method, SR-D method. When LE was estimated using traces of air moisture, good performances were obtained using the EC and the SR-P methods for samples with IFFP higher than 85%. However, the closest LE estimates were obtained using the residual method. For IFFP higher than 50%, the residual method combined with the sensible heat flux estimates determined using the SR-P method performed close to LELys and using the SR-D method good estimates were obtained for accumulated LELys. To estimate the sensible heat flux, the SR-D method can be recommended for day-to-day use by farmers because it is friendly and affordable.
publishDate 2021
dc.date.none.fl_str_mv 2021
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.3390/atmos12030322
http://hdl.handle.net/10459.1/70918
url https://doi.org/10.3390/atmos12030322
http://hdl.handle.net/10459.1/70918
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MICINN//RTA2008-00006-C02-01
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-098693-B-C31
info:eu-repo/grantAgreement/MICINN//RTA2008-00006-C02-02
Reproducció del document publicat a: https://doi.org/10.3390/atmos12030322
Atmosphere, 2021, vol. 12, núm. 3, p. 322
dc.rights.none.fl_str_mv cc-by (c) Castellví Sentís et al., 2021
info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
rights_invalid_str_mv cc-by (c) Castellví Sentís et al., 2021
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
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