Random simulation of photosynthetically active radiation and air temperature through different methods
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/7687 |
Resumo: | The purpose of this work was to compare three methods for simulating data of photosynthetically active radiation and air temperature, using daily parameters of 17 stations of São Paulo State, Brazil. The simulation of those elements was carried out for de 1st and the 16th day of each month, through three cases: nonsymmetric triangular distribution; normal distribution truncated at 1.96 standard deviation; and bivaried normal distribution. The simulated data were evaluated through the tests of homogeneity of variance F and Bartlett, t test, agreement index of Willmott, angular coefficient of the straight line, the index of performance of Camargo and tack the normal distribution (uni-varied). The simulation using the bi-varied normal distribution is most appropriate for representing the climate variables. |
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Random simulation of photosynthetically active radiation and air temperature through different methodsSimulação estocástica da radiação fotossinteticamente ativa e da temperatura do ar por diferentes métodosprobability distributions; climatic variables; bivariate normal; normal distribution; triangular distributiondistribuições de probabilidade; variáveis climáticas; normal bivariada; distribuição normal; distribuição triangularThe purpose of this work was to compare three methods for simulating data of photosynthetically active radiation and air temperature, using daily parameters of 17 stations of São Paulo State, Brazil. The simulation of those elements was carried out for de 1st and the 16th day of each month, through three cases: nonsymmetric triangular distribution; normal distribution truncated at 1.96 standard deviation; and bivaried normal distribution. The simulated data were evaluated through the tests of homogeneity of variance F and Bartlett, t test, agreement index of Willmott, angular coefficient of the straight line, the index of performance of Camargo and tack the normal distribution (uni-varied). The simulation using the bi-varied normal distribution is most appropriate for representing the climate variables.O objetivo deste trabalho foi comparar três métodos para simulação de dados de radiação fotossinteticamente ativa e temperatura do ar, com o uso de parâmetros diários de 17 estações do Estado de São Paulo. A simulação foi realizada para o primeiro e o 16o dia de cada mês, conforme: a distribuição normal truncada a mais ou menos 1,96 de desvio-padrão; distribuição triangular assimétrica; e distribuição normal bivariada. As estimativas com os dados simulados foram comparadas com os respectivos parâmetros (obtidos com os dados observados), pelos testes de homogeneidade de variância F e Bartlett, teste t de comparação de médias, coeficiente de correlação de Pearson, índice de concordância de Willmott, índice de desempenho de Camargo, coeficiente angular e o teste de normalidade dos dados. A simulação pela distribuição normal bivariada é a mais adequada para representar as variáveis climáticas.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraMartin, Thomas NewtonStorck, LindolfoNeto, Durval Dourado2007-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/7687Pesquisa Agropecuaria Brasileira; v.42, n.9, set. 2007; 1211-1219Pesquisa Agropecuária Brasileira; v.42, n.9, set. 2007; 1211-12191678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/7687/4606info:eu-repo/semantics/openAccess2010-09-29T12:13:20Zoai:ojs.seer.sct.embrapa.br:article/7687Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-09-29T12:13:20Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Random simulation of photosynthetically active radiation and air temperature through different methods Simulação estocástica da radiação fotossinteticamente ativa e da temperatura do ar por diferentes métodos |
title |
Random simulation of photosynthetically active radiation and air temperature through different methods |
spellingShingle |
Random simulation of photosynthetically active radiation and air temperature through different methods Martin, Thomas Newton probability distributions; climatic variables; bivariate normal; normal distribution; triangular distribution distribuições de probabilidade; variáveis climáticas; normal bivariada; distribuição normal; distribuição triangular |
title_short |
Random simulation of photosynthetically active radiation and air temperature through different methods |
title_full |
Random simulation of photosynthetically active radiation and air temperature through different methods |
title_fullStr |
Random simulation of photosynthetically active radiation and air temperature through different methods |
title_full_unstemmed |
Random simulation of photosynthetically active radiation and air temperature through different methods |
title_sort |
Random simulation of photosynthetically active radiation and air temperature through different methods |
author |
Martin, Thomas Newton |
author_facet |
Martin, Thomas Newton Storck, Lindolfo Neto, Durval Dourado |
author_role |
author |
author2 |
Storck, Lindolfo Neto, Durval Dourado |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Martin, Thomas Newton Storck, Lindolfo Neto, Durval Dourado |
dc.subject.por.fl_str_mv |
probability distributions; climatic variables; bivariate normal; normal distribution; triangular distribution distribuições de probabilidade; variáveis climáticas; normal bivariada; distribuição normal; distribuição triangular |
topic |
probability distributions; climatic variables; bivariate normal; normal distribution; triangular distribution distribuições de probabilidade; variáveis climáticas; normal bivariada; distribuição normal; distribuição triangular |
description |
The purpose of this work was to compare three methods for simulating data of photosynthetically active radiation and air temperature, using daily parameters of 17 stations of São Paulo State, Brazil. The simulation of those elements was carried out for de 1st and the 16th day of each month, through three cases: nonsymmetric triangular distribution; normal distribution truncated at 1.96 standard deviation; and bivaried normal distribution. The simulated data were evaluated through the tests of homogeneity of variance F and Bartlett, t test, agreement index of Willmott, angular coefficient of the straight line, the index of performance of Camargo and tack the normal distribution (uni-varied). The simulation using the bi-varied normal distribution is most appropriate for representing the climate variables. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-09-01 |
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/7687 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/7687 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/7687/4606 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
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.42, n.9, set. 2007; 1211-1219 Pesquisa Agropecuária Brasileira; v.42, n.9, set. 2007; 1211-1219 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_ |
1793416711218659328 |