Calibration of the surface renewal method (SR) under different meteorological conditions in an avocado orchard

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dc.contributor.authorMoran, Andresen_ZA
dc.contributor.authorFerreyra, Raulen_ZA
dc.contributor.authorSelles, Gabrielen_ZA
dc.contributor.authorSalgado, Eduardoen_ZA
dc.contributor.authorCaceres-Mella, Alejandroen_ZA
dc.contributor.authorPoblete-Echeverria, Carlosen_ZA
dc.date.accessioned2022-04-25T10:08:36Z
dc.date.available2022-04-25T10:08:36Z
dc.date.issued2020-05-19
dc.descriptionCITATION: Morán, Andrés et al. 2020. Calibration of the surface renewal method (SR) under different meteorological conditions in an avocado orchard. Agronomy, 10(5):730, doi.org/10.3390/agronomy10050730.en_ZA
dc.descriptionThe original publication is available at: https://www.mdpi.comen_ZA
dc.description.abstractThe surface renewal method (SR) allows estimating the sensible heat flux (H) using high-frequency thermocouples. Traditionally, SR has been compared and calibrated using standard instruments such as the Eddy covariance system (EC). Calibration involves correcting H measured with SR (H’SR) by means of the calibration factor (α). However, several studies show that α is not constant and could depend on canopy architecture, measurement height, atmospheric stability, and weather conditions. In avocado orchards, there is not enough information about energy fluxes and the application of the SR method. Therefore, the objective of this study is to calibrate the SR method in a mature avocado orchard considering the effect of meteorological conditions on the determination of α. The components of the surface energy balance were measured using an EC system in a commercial avocado orchard (cv. Hass) located in the Aconcagua Valley, Valparaíso Region, Chile. To evaluate the effect of the meteorological conditions on the determination of α, the dataset was classified into nine categories based on solar radiation and wind intensity. The results show that α varies according to meteorological conditions, with significant differences for cloudy days. The use of the variable α reduced the error in estimating H, so, this methodology can be used to have a more precise approximation of the energy balance and therefore to the water requirements.en_ZA
dc.description.versionPublisher's versionen_ZA
dc.format.extent14 pages : illustrationsen_ZA
dc.identifier.citationMorán, Andrés et al. 2020. Calibration of the surface renewal method (SR) under different meteorological conditions in an avocado orchard. Agronomy, 10(5):730, doi.org/10.3390/agronomy10050730en_ZA
dc.identifier.issn2073-4395 (online)
dc.identifier.otherdoi.org/10.3390/agronomy10050730
dc.identifier.urihttp://hdl.handle.net/10019.1/124471
dc.language.isoen_ZAen_ZA
dc.publisherMDPIen_ZA
dc.rights.holderAuthors retain copyrighten_ZA
dc.subjectMeteorological classificationen_ZA
dc.subjectEddy covariance systemen_ZA
dc.subjectEnergy balanceen_ZA
dc.subjectSurface renewal method (SRen_ZA
dc.subjectAvocado orchardsen_ZA
dc.titleCalibration of the surface renewal method (SR) under different meteorological conditions in an avocado orcharden_ZA
dc.typeArticleen_ZA
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