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Evaluation of a two-layer model to estimate actual evapotranspiration for vineyards

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dc.contributor.authorOrtega-Farias, Samuel, author
dc.contributor.authorPoblete, Carlos, author
dc.contributor.authorCarrasco, Marcos, author
dc.contributor.authorOlioso, Albert, author
dc.contributor.authorBrisson, Nadine, author
dc.contributor.authorU.S. Committee on Irrigation and Drainage, publisher
dc.date.accessioned2020-06-17T13:22:31Z
dc.date.available2020-06-17T13:22:31Z
dc.date.issued2007-10
dc.descriptionPresented at the Role of irrigation and drainage in a sustainable future: USCID fourth international conference on irrigation and drainage on October 3-6, 2007 in Sacramento, California.
dc.description.abstractThe two-layer model of Shuttlerworth and Wallace (SW) was evaluated to estimate actual evapotranspiration (ETa) above a drip-irrigated Merlot vineyard, located in the Talca Valley, Region del Maule, Chile (35° 25' LS; 71° 32' LW ; 136m above the sea level). An automatic weather system was installed in the center of the vineyard to measure climatic variables (air temperature, relative humidity, and wind speed) and energy balance components (solar radiation, net radiation, latent heat flux, sensible heat flux, and soil heat flux) during November and December 2006. Values of ETa estimated by the SW model were tested with latent heat flux measurements obtained from an eddy-covariance system on a 30 minute time interval. Results indicated that SW model was able to predict ETa with a root mean square error (RMSE) of 0.44 mm d-1 and mean absolute error (MAE) of 0.36 mm d-1. Furthermore, SW model predicted latent heat flux with RMSE and MAE of 32 W m-2 and 19W m-1, respectively.
dc.format.mediumborn digital
dc.format.mediumproceedings (reports)
dc.identifier.urihttps://hdl.handle.net/10217/208253
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado State University. Libraries
dc.relation.ispartofIrrigation Management
dc.relation.ispartofRole of irrigation and drainage in a sustainable future, Sacramento, California, October 3-6, 2007
dc.rightsCopyright and other restrictions may apply. User is responsible for compliance with all applicable laws. For information about copyright law, please see https://libguides.colostate.edu/copyright.
dc.sourceContained in: Role of irrigation and drainage in a sustainable future, Sacramento, California, October 3-6, 2007, http://hdl.handle.net/10217/46636
dc.titleEvaluation of a two-layer model to estimate actual evapotranspiration for vineyards
dc.title.alternativeUSCID fourth international conference
dc.typeText

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