Global radiation by simplified models for the state of Mato Grosso, Brazil
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/23563 |
Resumo: | The objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater than 65%. |
id |
EMBRAPA-4_cc64e17a5dbcb77ca436169a4ccf9c99 |
---|---|
oai_identifier_str |
oai:ojs.seer.sct.embrapa.br:article/23563 |
network_acronym_str |
EMBRAPA-4 |
network_name_str |
Pesquisa Agropecuária Brasileira (Online) |
repository_id_str |
|
spelling |
Global radiation by simplified models for the state of Mato Grosso, BrazilRadiação global por modelos simplificados para o Estado de Mato Grossoair temperature; Amazon; Cerrado; parameterized coefficients; solar radiationtemperatura do ar; Amazônia; Cerrado; coeficientes parametrizados; radiação solarThe objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater than 65%.O objetivo deste trabalho foi estimar a radiação global por modelos simplificados para o Estado de Mato Grosso. Os coeficientes parametrizados de 15 modelos simplificados foram regionalmente calibrados para estimativa da radiação global diária, com base apenas na temperatura do ar, a partir de dados de 28 estações meteorológicas automáticas (EMAs) da rede do Instituto Nacional de Meteorologia, distribuídas nos diferentes biomas do Estado de Mato Grosso. Os modelos simplificados avaliados foram derivados principalmente dos métodos de Hargreaves e Bristow & Campbell, com diferentes coeficientes parametrizados a serem calibrados. Para a avaliação do desempenho estatístico, foram empregados o coeficiente de determinação (R2), o erro absoluto médio (MBE), a raiz quadrada do erro quadrático médio (RMSE) e o índice d de Willmott. Para a recomendação de modelos por estação e/ou bioma, os modelos foram classificados numericamente (valores de posição), de acordo com o desempenho específico em cada indicativo estatístico. Os modelos simplificados derivados de Bristow & Campbell apresentaram melhores desempenhos estatísticos para estimativa da radiação global diária. Os valores dos coeficientes calibrados de um mesmo modelo variaram grandemente entre as EMAs e os biomas. Os valores do R2 variaram de 0,60 a 0,75, o que indica resultados satisfatórios nas calibrações obtidas. São indicados o modelo de Bristow & Campbell para a Amazônia e o Cerrado e o de Goodin para o Cerrado, com espalhamentos que variam entre 1,52 e 4,33 MJ m-2 por dia e ajustamentos superiores a 65%.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraInstituto Nacional de Meteorologia (Inmet)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, process No. 142210/2009-9)Instituto Nacional de Meteorologia (Inmet)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, process No. 142210/2009-9)Souza, Adilson Pacheco deSilva, Andréa Carvalho daTanaka, Adriana AkiUliana, Eduardo MorganAlmeida, Frederico Terra deKlar, Antônio EvaldoGomes, Anthony Wellington Almeida2017-05-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/23563Pesquisa Agropecuaria Brasileira; v.52, n.4, abr. 2017; 215-227Pesquisa Agropecuária Brasileira; v.52, n.4, abr. 2017; 215-2271678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAenghttps://seer.sct.embrapa.br/index.php/pab/article/view/23563/13730https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/23563/15503Direitos autorais 2017 Pesquisa Agropecuária Brasileirainfo:eu-repo/semantics/openAccess2017-05-08T12:18:29Zoai:ojs.seer.sct.embrapa.br:article/23563Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2017-05-08T12:18:29Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Global radiation by simplified models for the state of Mato Grosso, Brazil Radiação global por modelos simplificados para o Estado de Mato Grosso |
title |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
spellingShingle |
Global radiation by simplified models for the state of Mato Grosso, Brazil Souza, Adilson Pacheco de air temperature; Amazon; Cerrado; parameterized coefficients; solar radiation temperatura do ar; Amazônia; Cerrado; coeficientes parametrizados; radiação solar |
title_short |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
title_full |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
title_fullStr |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
title_full_unstemmed |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
title_sort |
Global radiation by simplified models for the state of Mato Grosso, Brazil |
author |
Souza, Adilson Pacheco de |
author_facet |
Souza, Adilson Pacheco de Silva, Andréa Carvalho da Tanaka, Adriana Aki Uliana, Eduardo Morgan Almeida, Frederico Terra de Klar, Antônio Evaldo Gomes, Anthony Wellington Almeida |
author_role |
author |
author2 |
Silva, Andréa Carvalho da Tanaka, Adriana Aki Uliana, Eduardo Morgan Almeida, Frederico Terra de Klar, Antônio Evaldo Gomes, Anthony Wellington Almeida |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Instituto Nacional de Meteorologia (Inmet) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, process No. 142210/2009-9) Instituto Nacional de Meteorologia (Inmet) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, process No. 142210/2009-9) |
dc.contributor.author.fl_str_mv |
Souza, Adilson Pacheco de Silva, Andréa Carvalho da Tanaka, Adriana Aki Uliana, Eduardo Morgan Almeida, Frederico Terra de Klar, Antônio Evaldo Gomes, Anthony Wellington Almeida |
dc.subject.por.fl_str_mv |
air temperature; Amazon; Cerrado; parameterized coefficients; solar radiation temperatura do ar; Amazônia; Cerrado; coeficientes parametrizados; radiação solar |
topic |
air temperature; Amazon; Cerrado; parameterized coefficients; solar radiation temperatura do ar; Amazônia; Cerrado; coeficientes parametrizados; radiação solar |
description |
The objective of this work was to estimate the global radiation by simplified models for the state of Mato Grosso, Brazil. The parameterized coefficients of 15 simplified models were regionally calibrated to estimate the daily global radiation, based only on air temperature, using data from 28 automatic weather stations (AWS) of the network of the Brazilian Meteorology Institute, distributed throughout the different biomes of the state of Mato Grosso. The simplified models are mostly derived from the Hargreaves and Bristow & Campbell methods, with different parameterized coefficients to be calibrated. The coefficient of determination (R2), the mean bias error (MBE), the root mean square error (RMSE), and Willmott’s d index were used to evaluate statistical performance. For the recommendation of models per station and/or biome, the models were rated numerically (position values) according to their specific performance in each statistical indicator. The simplified models derived from Bristow & Campbell showed better statistical performances for estimating daily global radiation. The values of the calibrated coefficients of the same model varied greatly among the AWS and biomes. The R2 values ranged from 0.60 to 0.75, indicating a satisfactory result for the obtained calibrations. The Bristow & Campbell model for the Amazon and the Cerrado and the Goodin model for the Cerrado are recommended, with scattering varying between 1.52 and 4.33 MJ m-2 per day and adjustments greater than 65%. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-05-08 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/23563 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/23563 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/23563/13730 https://seer.sct.embrapa.br/index.php/pab/article/downloadSuppFile/23563/15503 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2017 Pesquisa Agropecuária Brasileira info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2017 Pesquisa Agropecuária Brasileira |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.52, n.4, abr. 2017; 215-227 Pesquisa Agropecuária Brasileira; v.52, n.4, abr. 2017; 215-227 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
_version_ |
1793416681597435904 |