Evaluation of models for estimating the reference evapotranspiration in Colombian Coffee Zone
<p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regu...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Centro Editorial of Facultad de Ciencias Agrarias, Universidad Nacional de Colombia
2011-04-01
|
| Series: | Agronomía Colombiana |
| Online Access: | http://www.revistas.unal.edu.co/index.php/agrocol/article/view/28641 |
| _version_ | 1828376759338270720 |
|---|---|
| author | Ramírez Víctor Hugo Mejía Alexandra Marín Elsa Viviana Arango Rafael |
| author_facet | Ramírez Víctor Hugo Mejía Alexandra Marín Elsa Viviana Arango Rafael |
| author_sort | Ramírez Víctor Hugo |
| collection | DOAJ |
| description | <p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">The reference evapotranspiration (ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">) is an important variable for hydrological studies, crop water requirements estimations, climatic zonification and water resources management. The FAO recommends the </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Penman-Monteith </span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">(P-M) and/or the </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Hargreaves</span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US"> models as the worldwide useful for the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">calculation.</span></p><p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">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 ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">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 (R</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">nl</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">) which affected seriously the net radiation estimation and finally the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">, highly sensitivity at the wind speed changes, that make it inappropriate for locations without this data. The </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Hargreaves</span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US"> model, as FAO proposed, overestimate the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">, which made necessary a modification. The ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">estimation for this location was most sensible to atmospheric vapour and air temperature than the available energy in the atmosphere (R</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">n</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">-G).</span></p> |
| first_indexed | 2024-04-14T08:03:42Z |
| format | Article |
| id | doaj.art-bd310a06484e41e2aa212460a75bbef5 |
| institution | Directory Open Access Journal |
| issn | 0120-9965 |
| language | English |
| last_indexed | 2024-04-14T08:03:42Z |
| publishDate | 2011-04-01 |
| publisher | Centro Editorial of Facultad de Ciencias Agrarias, Universidad Nacional de Colombia |
| record_format | Article |
| series | Agronomía Colombiana |
| spelling | doaj.art-bd310a06484e41e2aa212460a75bbef52022-12-22T02:04:49ZengCentro Editorial of Facultad de Ciencias Agrarias, Universidad Nacional de ColombiaAgronomía Colombiana0120-99652011-04-01291107114Evaluation of models for estimating the reference evapotranspiration in Colombian Coffee ZoneRamírez Víctor HugoMejía AlexandraMarín Elsa VivianaArango Rafael<p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">The reference evapotranspiration (ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">) is an important variable for hydrological studies, crop water requirements estimations, climatic zonification and water resources management. The FAO recommends the </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Penman-Monteith </span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">(P-M) and/or the </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Hargreaves</span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US"> models as the worldwide useful for the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">calculation.</span></p><p class="MsoNormal" style="text-align: justify; line-height: normal; margin: 0cm 0cm 0pt; mso-layout-grid-align: none;"><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">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 ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">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 (R</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">nl</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">) which affected seriously the net radiation estimation and finally the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">, highly sensitivity at the wind speed changes, that make it inappropriate for locations without this data. The </span><em><span style="font-family: ";MinionPro-It";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-It; mso-ansi-language: EN-US;" lang="EN-US">Hargreaves</span></em><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US"> model, as FAO proposed, overestimate the ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">, which made necessary a modification. The ET</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">o </span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">estimation for this location was most sensible to atmospheric vapour and air temperature than the available energy in the atmosphere (R</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 5.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">n</span><span style="font-family: ";MinionPro-Regular";,";serif";; font-size: 9.5pt; mso-bidi-font-family: MinionPro-Regular; mso-ansi-language: EN-US;" lang="EN-US">-G).</span></p>http://www.revistas.unal.edu.co/index.php/agrocol/article/view/28641 |
| spellingShingle | Ramírez Víctor Hugo Mejía Alexandra Marín Elsa Viviana Arango Rafael Evaluation of models for estimating the reference evapotranspiration in Colombian Coffee Zone Agronomía Colombiana |
| title | 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_short | 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 |
| url | http://www.revistas.unal.edu.co/index.php/agrocol/article/view/28641 |
| work_keys_str_mv | AT ramirezvictorhugo evaluationofmodelsforestimatingthereferenceevapotranspirationincolombiancoffeezone AT mejiaalexandra evaluationofmodelsforestimatingthereferenceevapotranspirationincolombiancoffeezone AT marinelsaviviana evaluationofmodelsforestimatingthereferenceevapotranspirationincolombiancoffeezone AT arangorafael evaluationofmodelsforestimatingthereferenceevapotranspirationincolombiancoffeezone |