Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil
This paper addresses a methodology for analyzing spatio-temporal rainfall variability as a tool to support action planning that could mitigate negative impacts and reduce conflicts over water use in the Pajeú river basin, located in the semi-arid region of the state of Pernambuco. We used daily rain...
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Associação Brasileira de Engenharia Sanitária e Ambiental
2021
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oai:doaj.org-article:9654bfa75db54ff48195de94ada209302021-11-19T01:33:19ZMethods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil1808-45242176-947810.5327/Z21769478866https://doaj.org/article/9654bfa75db54ff48195de94ada209302021-10-01T00:00:00Zhttp://rbciamb.com.br/index.php/Publicacoes_RBCIAMB/article/view/866https://doaj.org/toc/1808-4524https://doaj.org/toc/2176-9478This paper addresses a methodology for analyzing spatio-temporal rainfall variability as a tool to support action planning that could mitigate negative impacts and reduce conflicts over water use in the Pajeú river basin, located in the semi-arid region of the state of Pernambuco. We used daily rainfall data from 11 rainfall stations, between 1964 and 2016, provided by the Pernambuco Water and Climate Agency (Agência Pernambucana de Águas e Clima — APAC) and the National Water Agency (Agência Nacional de Águas — ANA). This analysis employed the RClimDex software to calculate rainfallrelated climate extremes indices, aiming at monitoring and detecting climate changes and alterations in the regional rainfall pattern. The results indicated a change in the rainfall pattern in the Pajeú river basin, and all climate indices obtained converge toward the increase in water scarcity in the area, contributing to the recurrent droughts that impact the region.Janaina Oliveira Maria de AssisAthos Farias MenezesWerônica Meira de SouzaMaria do Carmo Martins SobralAssociação Brasileira de Engenharia Sanitária e Ambientalarticleriver basin, precipitation, climate change, semiaridEnvironmental sciencesGE1-350ENRevista Brasileira de Ciências Ambientais, Vol 56, Iss 4, Pp 577-588 (2021) |
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river basin, precipitation, climate change, semiarid Environmental sciences GE1-350 |
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river basin, precipitation, climate change, semiarid Environmental sciences GE1-350 Janaina Oliveira Maria de Assis Athos Farias Menezes Werônica Meira de Souza Maria do Carmo Martins Sobral Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
description |
This paper addresses a methodology for analyzing spatio-temporal rainfall variability as a tool to support action planning that could mitigate negative impacts and reduce conflicts over water use in the Pajeú river basin, located in the semi-arid region of the state of Pernambuco. We used daily rainfall data from 11 rainfall stations, between 1964 and 2016, provided by the Pernambuco Water and Climate Agency (Agência Pernambucana de Águas e Clima — APAC) and the National Water Agency (Agência Nacional de Águas — ANA). This analysis employed the RClimDex software to calculate rainfallrelated climate extremes indices, aiming at monitoring and detecting climate changes and alterations in the regional rainfall pattern. The results indicated a change in the rainfall pattern in the Pajeú river basin, and all climate indices obtained converge toward the increase in water scarcity in the area, contributing to the recurrent droughts that impact the region. |
format |
article |
author |
Janaina Oliveira Maria de Assis Athos Farias Menezes Werônica Meira de Souza Maria do Carmo Martins Sobral |
author_facet |
Janaina Oliveira Maria de Assis Athos Farias Menezes Werônica Meira de Souza Maria do Carmo Martins Sobral |
author_sort |
Janaina Oliveira Maria de Assis |
title |
Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
title_short |
Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
title_full |
Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
title_fullStr |
Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
title_full_unstemmed |
Methods to analyze spatio-temporal rainfall variability: application to the Pajeú river basin, Pernambuco, Brazil |
title_sort |
methods to analyze spatio-temporal rainfall variability: application to the pajeú river basin, pernambuco, brazil |
publisher |
Associação Brasileira de Engenharia Sanitária e Ambiental |
publishDate |
2021 |
url |
https://doaj.org/article/9654bfa75db54ff48195de94ada20930 |
work_keys_str_mv |
AT janainaoliveiramariadeassis methodstoanalyzespatiotemporalrainfallvariabilityapplicationtothepajeuriverbasinpernambucobrazil AT athosfariasmenezes methodstoanalyzespatiotemporalrainfallvariabilityapplicationtothepajeuriverbasinpernambucobrazil AT weronicameiradesouza methodstoanalyzespatiotemporalrainfallvariabilityapplicationtothepajeuriverbasinpernambucobrazil AT mariadocarmomartinssobral methodstoanalyzespatiotemporalrainfallvariabilityapplicationtothepajeuriverbasinpernambucobrazil |
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