Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone

The reference evapotranspiration (ETo) is an important variable for hydrological studies, crop water requirements estimations, climatic zonification and water resources management. The FAO recommends the Penman-Monteith (P-M) and/or the Hargreaves models as the worldwide useful for the ETo calculati...

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Autores:
Ramírez, Víctor Hugo
Mejía, Alexandra
Marín, Elsa Viviana
Arango, Rafael
Tipo de recurso:
Article of journal
Fecha de publicación:
2011
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/39836
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/39836
http://bdigital.unal.edu.co/29933/
http://bdigital.unal.edu.co/29933/2/
Palabra clave:
evapotranspiration
atmospheric humidity
radiation
temperature. Penman-Monteith
Hargreaves
Garcia and Lopez
lysimeter.
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
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spelling Atribución-NoComercial 4.0 InternacionalDerechos reservados - Universidad Nacional de Colombiahttp://creativecommons.org/licenses/by-nc/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2Ramírez, Víctor Hugo65bf7b28-2e03-4ef9-af8c-668b5218c6e0300Mejía, Alexandrab03b6a08-cb1b-493f-9945-f93b20a88d86300Marín, Elsa Viviana19a91449-cebd-4882-8b27-fccecb486b5f300Arango, Rafael730f7a35-1ac0-450f-86ae-b9b501ac1adf3002019-06-28T04:31:54Z2019-06-28T04:31:54Z2011https://repositorio.unal.edu.co/handle/unal/39836http://bdigital.unal.edu.co/29933/http://bdigital.unal.edu.co/29933/2/The reference evapotranspiration (ETo) is an important variable for hydrological studies, crop water requirements estimations, climatic zonification and water resources management. The FAO recommends the Penman-Monteith (P-M) and/or the Hargreaves models as the worldwide useful for the ETo calculation.The objective of this work was to test the performance of these models in one place of the Colombian Coffee Belt, and identify limitations and proposes modifications. The ETo calculation were compared with daily lysimeter measurements. The principal disadvantages of the P-M model were: the lack of calibrated coefficient for the long wave radiation estimation (Rnl) which affected seriously the net radiation estimation and finally the ETo, highly sensitivity at the wind speed changes, that make it inappropriate for locations without this data. The Hargreaves model, as FAO proposed, overestimate the ETo, which made necessary a modification. The ETo estimation for this location was most sensible to atmospheric vapour and air temperature than the available energy in the atmosphere (Rn-G).application/pdfspaUniversidad Nacional de Colombia, Facultad de Agronomía, Centro Editorialhttp://revistas.unal.edu.co/index.php/agrocol/article/view/28641Universidad Nacional de Colombia Revistas electrónicas UN Agronomía ColombianaAgronomía ColombianaAgronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 2357-3732 0120-9965Ramírez, Víctor Hugo and Mejía, Alexandra and Marín, Elsa Viviana and Arango, Rafael (2011) Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone. Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 2357-3732 0120-9965 .Evaluation of models for estimating the reference evapotranspiration in colombian coffee zoneArtículo de revistainfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1http://purl.org/coar/version/c_970fb48d4fbd8a85Texthttp://purl.org/redcol/resource_type/ARTevapotranspirationatmospheric humidityradiationtemperature. Penman-MonteithHargreavesGarcia and Lopezlysimeter.ORIGINAL28641-102621-2-PB.pdfapplication/pdf1343187https://repositorio.unal.edu.co/bitstream/unal/39836/1/28641-102621-2-PB.pdfe9f4afbc94a0ab3dc99757eff760e4deMD51THUMBNAIL28641-102621-2-PB.pdf.jpg28641-102621-2-PB.pdf.jpgGenerated Thumbnailimage/jpeg8706https://repositorio.unal.edu.co/bitstream/unal/39836/2/28641-102621-2-PB.pdf.jpgc9ee6b1a043c0ce24b145240429d71b4MD52unal/39836oai:repositorio.unal.edu.co:unal/398362024-01-21 23:06:57.648Repositorio Institucional Universidad Nacional de Colombiarepositorio_nal@unal.edu.co
dc.title.spa.fl_str_mv Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
title Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
spellingShingle Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
evapotranspiration
atmospheric humidity
radiation
temperature. Penman-Monteith
Hargreaves
Garcia and Lopez
lysimeter.
title_short Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
title_full Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
title_fullStr Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
title_full_unstemmed Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
title_sort Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone
dc.creator.fl_str_mv Ramírez, Víctor Hugo
Mejía, Alexandra
Marín, Elsa Viviana
Arango, Rafael
dc.contributor.author.spa.fl_str_mv Ramírez, Víctor Hugo
Mejía, Alexandra
Marín, Elsa Viviana
Arango, Rafael
dc.subject.proposal.spa.fl_str_mv evapotranspiration
atmospheric humidity
radiation
temperature. Penman-Monteith
Hargreaves
Garcia and Lopez
lysimeter.
topic evapotranspiration
atmospheric humidity
radiation
temperature. Penman-Monteith
Hargreaves
Garcia and Lopez
lysimeter.
description The reference evapotranspiration (ETo) is an important variable for hydrological studies, crop water requirements estimations, climatic zonification and water resources management. The FAO recommends the Penman-Monteith (P-M) and/or the Hargreaves models as the worldwide useful for the ETo calculation.The objective of this work was to test the performance of these models in one place of the Colombian Coffee Belt, and identify limitations and proposes modifications. The ETo calculation were compared with daily lysimeter measurements. The principal disadvantages of the P-M model were: the lack of calibrated coefficient for the long wave radiation estimation (Rnl) which affected seriously the net radiation estimation and finally the ETo, highly sensitivity at the wind speed changes, that make it inappropriate for locations without this data. The Hargreaves model, as FAO proposed, overestimate the ETo, which made necessary a modification. The ETo estimation for this location was most sensible to atmospheric vapour and air temperature than the available energy in the atmosphere (Rn-G).
publishDate 2011
dc.date.issued.spa.fl_str_mv 2011
dc.date.accessioned.spa.fl_str_mv 2019-06-28T04:31:54Z
dc.date.available.spa.fl_str_mv 2019-06-28T04:31:54Z
dc.type.spa.fl_str_mv Artículo de revista
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http://bdigital.unal.edu.co/29933/2/
url https://repositorio.unal.edu.co/handle/unal/39836
http://bdigital.unal.edu.co/29933/
http://bdigital.unal.edu.co/29933/2/
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dc.relation.spa.fl_str_mv http://revistas.unal.edu.co/index.php/agrocol/article/view/28641
dc.relation.ispartof.spa.fl_str_mv Universidad Nacional de Colombia Revistas electrónicas UN Agronomía Colombiana
Agronomía Colombiana
dc.relation.ispartofseries.none.fl_str_mv Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 2357-3732 0120-9965
dc.relation.references.spa.fl_str_mv Ramírez, Víctor Hugo and Mejía, Alexandra and Marín, Elsa Viviana and Arango, Rafael (2011) Evaluation of models for estimating the reference evapotranspiration in colombian coffee zone. Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 Agronomía Colombiana; Vol. 29, núm. 1 (2011); 107-114 2357-3732 0120-9965 .
dc.rights.spa.fl_str_mv Derechos reservados - Universidad Nacional de Colombia
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dc.rights.license.spa.fl_str_mv Atribución-NoComercial 4.0 Internacional
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dc.rights.accessrights.spa.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv Atribución-NoComercial 4.0 Internacional
Derechos reservados - Universidad Nacional de Colombia
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eu_rights_str_mv openAccess
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dc.publisher.spa.fl_str_mv Universidad Nacional de Colombia, Facultad de Agronomía, Centro Editorial
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