Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil

Detalhes bibliográficos
Autor(a) principal: Berlato, Moacir Antonio
Data de Publicação: 2006
Outros Autores: Farenzena, Homero, Leivas, Janice
Tipo de documento: Artigo
Idioma: por
Título da fonte: Pesquisa Agropecuária Gaúcha (Online)
Texto Completo: http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265
Resumo: In this study, the probability of rainfall in a ten-day period be equal to or greater than thc reference evapotranspiration in thc southern halfof the statc of Rio Grande do Sul, Brazi I was detcrmincd. Long-term weather data for a ten-day periods from 1961 to 1990 period werc used. Approximatcly 93% of the tcn-day rainfall periods analyzed adjusted to the distribution of exponencial probability. The probability of rainfall be equal to or greater than the reference evapotranspiration decreases to less than 50%, from de first ten-day period of October, to the first ten-day period of April. Thc ten-day periods with the highest risks (probability less than 30%) are between thc second tcn-day period of Novcmber and the third ten-day period oflanuary, bcing the west region that onc with highest risks. Thc results of this study may provido useful information for crop management (Sowing and harvcsting dates) and irrigation in the southern half of the State.
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spelling Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil Probabilidade da precipitação pluvial decendial ser igual ou superior à evapotranspiração de referência na metade sul do Estado do Rio Grande do Sulclimatic risk, agroclimatology, water requirement.risco climático, climatologia agrícola, necessidades hídricas.In this study, the probability of rainfall in a ten-day period be equal to or greater than thc reference evapotranspiration in thc southern halfof the statc of Rio Grande do Sul, Brazi I was detcrmincd. Long-term weather data for a ten-day periods from 1961 to 1990 period werc used. Approximatcly 93% of the tcn-day rainfall periods analyzed adjusted to the distribution of exponencial probability. The probability of rainfall be equal to or greater than the reference evapotranspiration decreases to less than 50%, from de first ten-day period of October, to the first ten-day period of April. Thc ten-day periods with the highest risks (probability less than 30%) are between thc second tcn-day period of Novcmber and the third ten-day period oflanuary, bcing the west region that onc with highest risks. Thc results of this study may provido useful information for crop management (Sowing and harvcsting dates) and irrigation in the southern half of the State. Foi calculada a probabilidade da precipitação pluvial decendial ser igual ou superior à evapotranspiração de referência, na metade sul do Rio Grande do Sul. Utilizaram-se séries históricas de dados meteorológicos decendiais do período 1961-1990, de onze localidades do Estado. Em cerca de 93% dos decêndios analisados a precipitação pluvial ajustou-se à distribuição de probabilidade exponencial. A probabilidade da precipitação pluvial decendial ser igual ou superior à evapotranspiração de referência é menor que 50%, já a partir do primeiro decêndio de outubro, em toda a metade sul do Estado, perdurando, com exceção de algumas pequenas áreas, até o primeiro decêndio de abril. Os deedndios de maior risco (probabilidade menor que 30%) estão compreendidos entre o segundo decêndio de novembro e o terceiro decêndio de janeiro, sendo que os valores mais baixos ocorrem no oeste da metade sul do Estado. Os resultados deste trabalho servem como subsídio para a determinação de épocas de semeadura c colheita, e também para a determinação das épocas em que a irrigação é recomendável. Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural2006-12-20info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265Pesquisa Agropecuária Gaúcha; Vol 12 No 1/2 (2006): PESQ. AGROP. GAÚCHA; 7-16Pesquisa Agropecuária Gaúcha; v. 12 n. 1/2 (2006): PESQ. AGROP. GAÚCHA; 7-162595-76860104-9070reponame:Pesquisa Agropecuária Gaúcha (Online)instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulinstacron:SEAPDRporhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265/229Berlato, Moacir AntonioFarenzena, HomeroLeivas, Janice info:eu-repo/semantics/openAccess2024-04-22T12:35:09Zoai:ojs.revistapag.agricultura.rs.gov.br:article/265Revistahttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapagPUBhttp://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/oaipag@agricultura.rs.gov.br||2595-76860104-9070opendoar:2024-04-22T12:35:09Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sulfalse
dc.title.none.fl_str_mv Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
Probabilidade da precipitação pluvial decendial ser igual ou superior à evapotranspiração de referência na metade sul do Estado do Rio Grande do Sul
title Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
spellingShingle Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
Berlato, Moacir Antonio
climatic risk, agroclimatology, water requirement.
risco climático, climatologia agrícola, necessidades hídricas.
title_short Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
title_full Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
title_fullStr Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
title_full_unstemmed Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
title_sort Probability of a ten-day rainfall period being equal to or greater than the reference evapotranspiration in southern half of the State of Rio Grande do Sul, Brazil
author Berlato, Moacir Antonio
author_facet Berlato, Moacir Antonio
Farenzena, Homero
Leivas, Janice
author_role author
author2 Farenzena, Homero
Leivas, Janice
author2_role author
author
dc.contributor.author.fl_str_mv Berlato, Moacir Antonio
Farenzena, Homero
Leivas, Janice
dc.subject.por.fl_str_mv climatic risk, agroclimatology, water requirement.
risco climático, climatologia agrícola, necessidades hídricas.
topic climatic risk, agroclimatology, water requirement.
risco climático, climatologia agrícola, necessidades hídricas.
description In this study, the probability of rainfall in a ten-day period be equal to or greater than thc reference evapotranspiration in thc southern halfof the statc of Rio Grande do Sul, Brazi I was detcrmincd. Long-term weather data for a ten-day periods from 1961 to 1990 period werc used. Approximatcly 93% of the tcn-day rainfall periods analyzed adjusted to the distribution of exponencial probability. The probability of rainfall be equal to or greater than the reference evapotranspiration decreases to less than 50%, from de first ten-day period of October, to the first ten-day period of April. Thc ten-day periods with the highest risks (probability less than 30%) are between thc second tcn-day period of Novcmber and the third ten-day period oflanuary, bcing the west region that onc with highest risks. Thc results of this study may provido useful information for crop management (Sowing and harvcsting dates) and irrigation in the southern half of the State.
publishDate 2006
dc.date.none.fl_str_mv 2006-12-20
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 http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265
url http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://revistapag.agricultura.rs.gov.br/ojs/index.php/revistapag/article/view/265/229
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 Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
publisher.none.fl_str_mv Departamento de Diagnóstico e Pesquisa Agropecuária. Secretaria de Agricultura, Pecuária e Desenvolvimento Rural
dc.source.none.fl_str_mv Pesquisa Agropecuária Gaúcha; Vol 12 No 1/2 (2006): PESQ. AGROP. GAÚCHA; 7-16
Pesquisa Agropecuária Gaúcha; v. 12 n. 1/2 (2006): PESQ. AGROP. GAÚCHA; 7-16
2595-7686
0104-9070
reponame:Pesquisa Agropecuária Gaúcha (Online)
instname:Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron:SEAPDR
instname_str Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
instacron_str SEAPDR
institution SEAPDR
reponame_str Pesquisa Agropecuária Gaúcha (Online)
collection Pesquisa Agropecuária Gaúcha (Online)
repository.name.fl_str_mv Pesquisa Agropecuária Gaúcha (Online) - Secretaria de Agricultura, Pecuária e Desenvolvimento Rural do Rio Grande do Sul
repository.mail.fl_str_mv pag@agricultura.rs.gov.br||
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