Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil

Detalhes bibliográficos
Autor(a) principal: Santos,Lucas da Costa
Data de Publicação: 2017
Outros Autores: José,Jefferson Vieira, Alves,Daniel Soares, Nitsche,Pablo Ricardo, Reis,Elton Fialho dos, Bender,Fabiani Denise
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista Ambiente & Água
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000500743
Resumo: Abstract Long-term changes in important weather variables such as evapotranspiration (ET) and precipitation are expected as a response to climate change. These changes may require adjustments to current strategies of planning and management of water resources. The objective of this work was to conduct a spatiotemporal characterization of evapotranspiration in the State of Paraná, Brazil, including in this approach a temporal trend analysis. A similar analysis was also conducted for precipitation. Thus, the historical data (1980-2010) from 33 weather stations were analyzed. The spatial distribution of the data was carried out by geostatistical techniques (ordinary kriging) and the trend analysis by the tests Mann-Kendall and Sen. According to the results, evapotranspiration increases from the coast to the interior of the state, with the highest values in the northeast and northwest regions, reaching levels of about 1200 mm yr-1. The temporal variability of the ET presented a significant upward trend in 12% of the locations, with increases from 2.5 to 7.0 mm yr-1. Precipitation was higher in the coastal and south-central regions and the lowest amounts were identified in the northeast and northwest regions. The precipitation trend analysis indicated a significant downward trend in precipitation volume of five locations. The evapotranspiration and precipitation showed, in general, no statistically significant trends in most of the stations analyzed; however, the upward trends for ET and downward trends for precipitation indicate local changes in the State of Paraná.
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spelling Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazilclimate changeevapotranspiration demandregionalization.Abstract Long-term changes in important weather variables such as evapotranspiration (ET) and precipitation are expected as a response to climate change. These changes may require adjustments to current strategies of planning and management of water resources. The objective of this work was to conduct a spatiotemporal characterization of evapotranspiration in the State of Paraná, Brazil, including in this approach a temporal trend analysis. A similar analysis was also conducted for precipitation. Thus, the historical data (1980-2010) from 33 weather stations were analyzed. The spatial distribution of the data was carried out by geostatistical techniques (ordinary kriging) and the trend analysis by the tests Mann-Kendall and Sen. According to the results, evapotranspiration increases from the coast to the interior of the state, with the highest values in the northeast and northwest regions, reaching levels of about 1200 mm yr-1. The temporal variability of the ET presented a significant upward trend in 12% of the locations, with increases from 2.5 to 7.0 mm yr-1. Precipitation was higher in the coastal and south-central regions and the lowest amounts were identified in the northeast and northwest regions. The precipitation trend analysis indicated a significant downward trend in precipitation volume of five locations. The evapotranspiration and precipitation showed, in general, no statistically significant trends in most of the stations analyzed; however, the upward trends for ET and downward trends for precipitation indicate local changes in the State of Paraná.Instituto de Pesquisas Ambientais em Bacias Hidrográficas2017-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000500743Revista Ambiente & Água v.12 n.5 2017reponame:Revista Ambiente & Águainstname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)instacron:IPABHI10.4136/ambi-agua.2057info:eu-repo/semantics/openAccessSantos,Lucas da CostaJosé,Jefferson VieiraAlves,Daniel SoaresNitsche,Pablo RicardoReis,Elton Fialho dosBender,Fabiani Deniseeng2017-09-05T00:00:00Zoai:scielo:S1980-993X2017000500743Revistahttp://www.ambi-agua.net/PUBhttps://old.scielo.br/oai/scielo-oai.php||ambi.agua@gmail.com1980-993X1980-993Xopendoar:2017-09-05T00:00Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)false
dc.title.none.fl_str_mv Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
title Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
spellingShingle Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
Santos,Lucas da Costa
climate change
evapotranspiration demand
regionalization.
title_short Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
title_full Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
title_fullStr Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
title_full_unstemmed Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
title_sort Space-time variability of evapotranspiration and precipitation in the State of Paraná, Brazil
author Santos,Lucas da Costa
author_facet Santos,Lucas da Costa
José,Jefferson Vieira
Alves,Daniel Soares
Nitsche,Pablo Ricardo
Reis,Elton Fialho dos
Bender,Fabiani Denise
author_role author
author2 José,Jefferson Vieira
Alves,Daniel Soares
Nitsche,Pablo Ricardo
Reis,Elton Fialho dos
Bender,Fabiani Denise
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Santos,Lucas da Costa
José,Jefferson Vieira
Alves,Daniel Soares
Nitsche,Pablo Ricardo
Reis,Elton Fialho dos
Bender,Fabiani Denise
dc.subject.por.fl_str_mv climate change
evapotranspiration demand
regionalization.
topic climate change
evapotranspiration demand
regionalization.
description Abstract Long-term changes in important weather variables such as evapotranspiration (ET) and precipitation are expected as a response to climate change. These changes may require adjustments to current strategies of planning and management of water resources. The objective of this work was to conduct a spatiotemporal characterization of evapotranspiration in the State of Paraná, Brazil, including in this approach a temporal trend analysis. A similar analysis was also conducted for precipitation. Thus, the historical data (1980-2010) from 33 weather stations were analyzed. The spatial distribution of the data was carried out by geostatistical techniques (ordinary kriging) and the trend analysis by the tests Mann-Kendall and Sen. According to the results, evapotranspiration increases from the coast to the interior of the state, with the highest values in the northeast and northwest regions, reaching levels of about 1200 mm yr-1. The temporal variability of the ET presented a significant upward trend in 12% of the locations, with increases from 2.5 to 7.0 mm yr-1. Precipitation was higher in the coastal and south-central regions and the lowest amounts were identified in the northeast and northwest regions. The precipitation trend analysis indicated a significant downward trend in precipitation volume of five locations. The evapotranspiration and precipitation showed, in general, no statistically significant trends in most of the stations analyzed; however, the upward trends for ET and downward trends for precipitation indicate local changes in the State of Paraná.
publishDate 2017
dc.date.none.fl_str_mv 2017-10-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000500743
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2017000500743
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.4136/ambi-agua.2057
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
publisher.none.fl_str_mv Instituto de Pesquisas Ambientais em Bacias Hidrográficas
dc.source.none.fl_str_mv Revista Ambiente & Água v.12 n.5 2017
reponame:Revista Ambiente & Água
instname:Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron:IPABHI
instname_str Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
instacron_str IPABHI
institution IPABHI
reponame_str Revista Ambiente & Água
collection Revista Ambiente & Água
repository.name.fl_str_mv Revista Ambiente & Água - Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHI)
repository.mail.fl_str_mv ||ambi.agua@gmail.com
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