Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica
Ano de defesa: | 2015 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Engenharia Agrícola
|
Departamento: |
Engenharia Agrícola
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/3631 |
Resumo: | The real time determination and future of evapotranspiration (ET) can contribute to more efficient management of irrigation. The objective of this study was: (i) to evaluate the accuracy of the estimate of the reference evapotranspiration (ETo) calculated on daily data of the weather forecast for seven future days (EToest), to different locations, growing seasons and periods with and without and rain; (Ii) evaluate the impact of using the EToest in the water balance of a soil cultivated with corn. The estimate ETo was performed to Santa Maria - RS and Crystalline and Morrinhos - GO. The collection of weather forecast data was carried out between June 26, 2011 to March 31 2014 was collected-daily (6:00 AM), the site: http://www.tempoagora.com.br/, the forecast data maximum temperature (Tmax) and minimum (Tmin) air, maximum relative humidity (RHmax) and minimum (RHmin) and wind speed (U2) for the next seven days. The EToest calculation was carried out by FAO-Penman-Monteith (FAO PM) and Hargreaves methods. The ETo observed day (EToday) was calculated by the FAO- PM method with data measured by automatic weather station of the National Institute of Meteorology (INMET). The values of EToest (est+1 the est+7) were compared with the values observed daily (ETodia). The accuracy of the estimated EToest was evaluated using statistical indicators (coefficient of determination - R2, slope - b, mean square error of the square root -RMSE and average error - ME). For the analysis of the water balance of a soil cultivated with corn, a field experiment was accomplished in the year 2011/12, in an area of UFSM. The experimental design was a completely randomized factorial design with four replications. The factor "A" consisted of two methods of calculation to estimate crop evapotranspiration (ETc): (i) using crop coefficient (Kc) and simple; (Ii) using dual Kc. The "D" factor consisted of four irrigation strategies: (i) 100% replacement of ETc; (ii) 75% replacement of ETc; (iii) 50% of ETc and replacement; (iv) 25% of replacement etc. The volumetric water content and available soil were simulated is compared with the measured (100% tartamento simple Kc). The results are an overestimation of EToest (>0,04 and <0,72 mm day-1) for the three sites, attributed to overestimation of Tmax by the weather forecast, a variable that showed high association with EToest (R2 0,60). This overestimation of EToest is reduced as the estimation approximates the observed daily. The differences between the ETodia and EToest, has small inlfuência the results of the soil water balance (RMSE less than 10 mm for the available water). Thus, EToest can be an alternative for determining the need for crop irrigation in future time, contributing to the management of irrigated activity and for the most efficient use of natural resources and other agricultural. |
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2016-03-182016-03-182015-03-17OLIVEIRA, Zanandra Boff de. ESTIMATED EVAPOTRANSPIRATION FORECAST OF DAILY DATA FROM WEATHER. 2015. 95 f. Tese (Doutorado em Engenharia Agrícola) - Universidade Federal de Santa Maria, Santa Maria, 2015.http://repositorio.ufsm.br/handle/1/3631The real time determination and future of evapotranspiration (ET) can contribute to more efficient management of irrigation. The objective of this study was: (i) to evaluate the accuracy of the estimate of the reference evapotranspiration (ETo) calculated on daily data of the weather forecast for seven future days (EToest), to different locations, growing seasons and periods with and without and rain; (Ii) evaluate the impact of using the EToest in the water balance of a soil cultivated with corn. The estimate ETo was performed to Santa Maria - RS and Crystalline and Morrinhos - GO. The collection of weather forecast data was carried out between June 26, 2011 to March 31 2014 was collected-daily (6:00 AM), the site: http://www.tempoagora.com.br/, the forecast data maximum temperature (Tmax) and minimum (Tmin) air, maximum relative humidity (RHmax) and minimum (RHmin) and wind speed (U2) for the next seven days. The EToest calculation was carried out by FAO-Penman-Monteith (FAO PM) and Hargreaves methods. The ETo observed day (EToday) was calculated by the FAO- PM method with data measured by automatic weather station of the National Institute of Meteorology (INMET). The values of EToest (est+1 the est+7) were compared with the values observed daily (ETodia). The accuracy of the estimated EToest was evaluated using statistical indicators (coefficient of determination - R2, slope - b, mean square error of the square root -RMSE and average error - ME). For the analysis of the water balance of a soil cultivated with corn, a field experiment was accomplished in the year 2011/12, in an area of UFSM. The experimental design was a completely randomized factorial design with four replications. The factor "A" consisted of two methods of calculation to estimate crop evapotranspiration (ETc): (i) using crop coefficient (Kc) and simple; (Ii) using dual Kc. The "D" factor consisted of four irrigation strategies: (i) 100% replacement of ETc; (ii) 75% replacement of ETc; (iii) 50% of ETc and replacement; (iv) 25% of replacement etc. The volumetric water content and available soil were simulated is compared with the measured (100% tartamento simple Kc). The results are an overestimation of EToest (>0,04 and <0,72 mm day-1) for the three sites, attributed to overestimation of Tmax by the weather forecast, a variable that showed high association with EToest (R2 0,60). This overestimation of EToest is reduced as the estimation approximates the observed daily. The differences between the ETodia and EToest, has small inlfuência the results of the soil water balance (RMSE less than 10 mm for the available water). Thus, EToest can be an alternative for determining the need for crop irrigation in future time, contributing to the management of irrigated activity and for the most efficient use of natural resources and other agricultural.A determinação em tempo real e futuro da evapotranspiração (ET) pode contribuir para a maior eficiência no gerenciamento da irrigação. Assim, o objetivo do presente trabalho foi: (i) avaliar a precisão da estimativa da evapotranspiração de referência (ETo) calculada com dados diários da previsão meteorológica para sete dias futuros (EToest), para diferentes locais, anos agrícolas e períodos com e sem chuvas e; (ii) avaliar o impacto da utilização da EToest no balanço hídrico de um solo cultivado com milho. A estimativa da ETo foi realizada para Santa Maria - RS e para Cristalina e Morrinhos - GO. A coleta de dados da previsão meteorológica foi realizada entre 26 de junho de 2011 a 31 de março de 2014. Coletou-se, diariamente (6:00 AM), do site: http://www.tempoagora.com.br/, os dados de previsão de temperatura máxima (Tmax) e mínima (Tmin) do ar, umidade relativa máxima (RHmax) e mínima (RHmin) do ar e velocidade do vento (U2), para os próximos sete dias. O cálculo da EToest foi realizado pelos métodos FAO-Penman-Monteith (FAO PM) e Hargreaves. A ETo do dia observado (ETodia) foi calculada pelo método FAO PM, com dados medidos pela estação meteorológica automática do Instituto Nacional de Meteorologia (INMET). Os valores de EToest (est+1 a est+7) foram comparados com os valores do dia observado (ETodia). A precisão da estimativa da EToest foi avaliada a partir de indicadores estatísticos (coeficiente de determinação - R2, coeficiente angular - b, raiz quadrada do erro quadrático médio -RMSE e erro médio - ME). Para a análise do balanço hídrico de um solo cultivado com milho, um experimento de campo foi realizado no ano agrícola 2011/12, em área experimental da UFSM. O delineamento experimental utilizado foi o inteiramente casualizado, bifatorial, com quatro repetições. O fator A constituiu de duas metodologias de cálculo para a estimativa da evapotranspiração da cultura (ETc): (i) utilizando coeficiente de cultivo (Kc) simples e; (ii) utilizando Kc dual. O fator D foi constituído de quatro estratégias de irrigação: (i) 100% de reposição da ETc; (ii) 75% de reposição da ETc; (iii) 50% de reposição da ETc e; (iv) 25% de reposição da ETc. O conteúdo volumétrico e a água disponível no solo simulados foram comparados com os medidos (tratamento 100% com Kc simples). Os resultados são de uma superestimativa média da EToest (>0,04 e <0,72 mm dia-1) para os três locais, atribuída a superestimativa da Tmax pela previsão meteorológica, variável que apresentou elevada associação com a EToest (R2 de 0,60). Essa superestimativa da EToest é reduzida à medida que a estimativa se aproxima do dia observado. As diferenças entre a ETodia e a EToest, tem pequena inlfuência nos resultados do balanço hídrico do solo (RMSE inferior a 10 mm para a água disponível). Assim, a EToest pode ser uma alternativa para a determinação da necessidade de irrigação das culturas em tempo futuro, contribuindo para o gerenciamento da atividade irrigada e para a maior eficiência na utilização dos recursos naturais e demais insumos agrícolas.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em Engenharia AgrícolaUFSMBREngenharia AgrícolaPrevisão meteorológicaEvapotranspiraçãoBalanço hídricoWeather forecastEvapotranspirationWater balanceCNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLAEstimativa da evapotranspiração a partir de dados diários de previsão meteorológicaEstimated evapotranspiration forecast of daily data from weatherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisCarlesso, Reimarhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787243P5Heldwein, Arno Bernardohttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788078U3Petry, Mirta Teresinhahttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4795104P8Martins, Juliano Dalcinhttp://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4742426Y8Wolschick, Doloreshttp://lattes.cnpq.br/6258612196477091http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4143110Y6Oliveira, Zanandra Boff de5003000000084005003005005003003001a6ccd1d-16e8-4110-910c-7178d86e09441683d575-ed0e-4423-b54d-7fe218f26dd59a4eada9-2d44-42ce-8d75-16ec472d6005b7bf2d54-7096-40ac-84fd-152c0e8a93f992d5c753-f864-40df-99b4-eccbb399e466d5ffaae9-a7a6-4c77-b272-d81f7dc7745finfo:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALOLIVEIRA, ZANANDRA BOFF DE.pdfTese de Doutoradoapplication/pdf5552613http://repositorio.ufsm.br/bitstream/1/3631/1/OLIVEIRA%2c%20ZANANDRA%20BOFF%20DE.pdf8ef4163d9dfed57429178b99379b21f7MD51TEXTOLIVEIRA, ZANANDRA BOFF DE.pdf.txtOLIVEIRA, ZANANDRA BOFF DE.pdf.txtExtracted texttext/plain192262http://repositorio.ufsm.br/bitstream/1/3631/2/OLIVEIRA%2c%20ZANANDRA%20BOFF%20DE.pdf.txt5b17d3a6eaf9f0c64cc799c5fc29703bMD52THUMBNAILOLIVEIRA, ZANANDRA BOFF DE.pdf.jpgOLIVEIRA, ZANANDRA BOFF DE.pdf.jpgIM Thumbnailimage/jpeg4475http://repositorio.ufsm.br/bitstream/1/3631/3/OLIVEIRA%2c%20ZANANDRA%20BOFF%20DE.pdf.jpgb6b4d9116147f61e66346c9dd1c390d7MD531/36312017-09-12 14:46:53.88oai:repositorio.ufsm.br:1/3631Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2017-09-12T17:46:53Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
dc.title.alternative.eng.fl_str_mv |
Estimated evapotranspiration forecast of daily data from weather |
title |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
spellingShingle |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica Oliveira, Zanandra Boff de Previsão meteorológica Evapotranspiração Balanço hídrico Weather forecast Evapotranspiration Water balance CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
title_short |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
title_full |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
title_fullStr |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
title_full_unstemmed |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
title_sort |
Estimativa da evapotranspiração a partir de dados diários de previsão meteorológica |
author |
Oliveira, Zanandra Boff de |
author_facet |
Oliveira, Zanandra Boff de |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Carlesso, Reimar |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4787243P5 |
dc.contributor.referee1.fl_str_mv |
Heldwein, Arno Bernardo |
dc.contributor.referee1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4788078U3 |
dc.contributor.referee2.fl_str_mv |
Petry, Mirta Teresinha |
dc.contributor.referee2Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4795104P8 |
dc.contributor.referee3.fl_str_mv |
Martins, Juliano Dalcin |
dc.contributor.referee3Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4742426Y8 |
dc.contributor.referee4.fl_str_mv |
Wolschick, Dolores |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/6258612196477091 |
dc.contributor.authorLattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4143110Y6 |
dc.contributor.author.fl_str_mv |
Oliveira, Zanandra Boff de |
contributor_str_mv |
Carlesso, Reimar Heldwein, Arno Bernardo Petry, Mirta Teresinha Martins, Juliano Dalcin Wolschick, Dolores |
dc.subject.por.fl_str_mv |
Previsão meteorológica Evapotranspiração Balanço hídrico |
topic |
Previsão meteorológica Evapotranspiração Balanço hídrico Weather forecast Evapotranspiration Water balance CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
dc.subject.eng.fl_str_mv |
Weather forecast Evapotranspiration Water balance |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA |
description |
The real time determination and future of evapotranspiration (ET) can contribute to more efficient management of irrigation. The objective of this study was: (i) to evaluate the accuracy of the estimate of the reference evapotranspiration (ETo) calculated on daily data of the weather forecast for seven future days (EToest), to different locations, growing seasons and periods with and without and rain; (Ii) evaluate the impact of using the EToest in the water balance of a soil cultivated with corn. The estimate ETo was performed to Santa Maria - RS and Crystalline and Morrinhos - GO. The collection of weather forecast data was carried out between June 26, 2011 to March 31 2014 was collected-daily (6:00 AM), the site: http://www.tempoagora.com.br/, the forecast data maximum temperature (Tmax) and minimum (Tmin) air, maximum relative humidity (RHmax) and minimum (RHmin) and wind speed (U2) for the next seven days. The EToest calculation was carried out by FAO-Penman-Monteith (FAO PM) and Hargreaves methods. The ETo observed day (EToday) was calculated by the FAO- PM method with data measured by automatic weather station of the National Institute of Meteorology (INMET). The values of EToest (est+1 the est+7) were compared with the values observed daily (ETodia). The accuracy of the estimated EToest was evaluated using statistical indicators (coefficient of determination - R2, slope - b, mean square error of the square root -RMSE and average error - ME). For the analysis of the water balance of a soil cultivated with corn, a field experiment was accomplished in the year 2011/12, in an area of UFSM. The experimental design was a completely randomized factorial design with four replications. The factor "A" consisted of two methods of calculation to estimate crop evapotranspiration (ETc): (i) using crop coefficient (Kc) and simple; (Ii) using dual Kc. The "D" factor consisted of four irrigation strategies: (i) 100% replacement of ETc; (ii) 75% replacement of ETc; (iii) 50% of ETc and replacement; (iv) 25% of replacement etc. The volumetric water content and available soil were simulated is compared with the measured (100% tartamento simple Kc). The results are an overestimation of EToest (>0,04 and <0,72 mm day-1) for the three sites, attributed to overestimation of Tmax by the weather forecast, a variable that showed high association with EToest (R2 0,60). This overestimation of EToest is reduced as the estimation approximates the observed daily. The differences between the ETodia and EToest, has small inlfuência the results of the soil water balance (RMSE less than 10 mm for the available water). Thus, EToest can be an alternative for determining the need for crop irrigation in future time, contributing to the management of irrigated activity and for the most efficient use of natural resources and other agricultural. |
publishDate |
2015 |
dc.date.issued.fl_str_mv |
2015-03-17 |
dc.date.accessioned.fl_str_mv |
2016-03-18 |
dc.date.available.fl_str_mv |
2016-03-18 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OLIVEIRA, Zanandra Boff de. ESTIMATED EVAPOTRANSPIRATION FORECAST OF DAILY DATA FROM WEATHER. 2015. 95 f. Tese (Doutorado em Engenharia Agrícola) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/3631 |
identifier_str_mv |
OLIVEIRA, Zanandra Boff de. ESTIMATED EVAPOTRANSPIRATION FORECAST OF DAILY DATA FROM WEATHER. 2015. 95 f. Tese (Doutorado em Engenharia Agrícola) - Universidade Federal de Santa Maria, Santa Maria, 2015. |
url |
http://repositorio.ufsm.br/handle/1/3631 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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openAccess |
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Universidade Federal de Santa Maria |
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UFSM |
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Engenharia Agrícola |
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Universidade Federal de Santa Maria |
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