Changes in the climatic water budget of an intermittent river in the Brazilian semiarid: trends in cyclical processes and their relation to teleconnection patterns

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorFederal Rural University of Pernambuco-
Autor(es): dc.contributorUniversidade Estadual de Londrina (UEL)-
Autor(es): dc.contributorFederal University of Agreste of Pernambuco-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorFederal University of Alagoas-
Autor(es): dc.creatorda Silva, Thieres George Freire-
Autor(es): dc.creatorRocha, Ana Karlla Penna-
Autor(es): dc.creatorde Lucas, Alanderson Firmino-
Autor(es): dc.creatorde Souza, Luciana Sandra Bastos-
Autor(es): dc.creatorMontenegro, Abelardo Antônio de Assunção-
Autor(es): dc.creatorde Souza, Werônica Meira-
Autor(es): dc.creatorJardim, Alexandre Maniçoba da Rosa Ferraz-
Autor(es): dc.creatorde Souza, Carlos André Alves-
Autor(es): dc.creatorSalvador, Kaique Renan da Silva-
Autor(es): dc.creatorde Carvalho, Ailton Alves-
Autor(es): dc.creatorAraújo Júnior, George do Nascimento-
Data de aceite: dc.date.accessioned2025-08-21T22:18:12Z-
Data de disponibilização: dc.date.available2025-08-21T22:18:12Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2024-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00704-024-05268-z-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/305690-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/305690-
Descrição: dc.descriptionOceanic-atmospheric phenomena can change the patterns of rainfall (R) and potential evapotranspiration (ET0) and, therefore, the water availability of a location, resulting in significant effects on agricultural activity. This study evaluated the trend of the climatic water budget (W) of a river basin in the Brazilian semiarid region, the Pajeú river basin, as a function of variations in R and ET0 resulting from changes in climate patterns and atmospheric circulation systems. For this, data series of 27 rain gauge and 8 complete weather stations with different time intervals were used (i.e., a maximum range of 1912 to 2019, 108 years). Data from 8 complete weather stations were used to estimate ET0, and to calibrate and validate methods for estimating incident solar radiation (Rs) and ET0, aiming to fill in gaps in the data series. Seasonal and cyclical trends for R, ET0 and W were evaluated on ten timescales, using the Mann–Kendall test, Sen Slope test, Pettitt test and the Seasonal Trend decomposition using Loess. The timescales were defined based on an annual basis, in the seasons, dry and rainy periods, and during the agricultural calendar of three important crops in the region. Pearson correlation method was applied to identify the effects of atmospheric circulation systems on the values of R, ET0, and W from teleconnection indices for the ten timescales. Significant positive trends of up to + 3.71 mm year−1 for ET0, and negative trends up to -3.48 mm year−1 for W were found. The Atlantic Multidecadal Oscillation (AMO) index and El Niño 1 + 2 (N12) index both showed a correlation with R, ET0 and W only for the annual period. The results indicate the need to adapt the planting times of the main agricultural crops in the region, as well as to reduce water use in irrigated areas, as a strategy for water and food security.-
Descrição: dc.descriptionFederal Rural University of Pernambuco-
Descrição: dc.descriptionGraduate Program in Geography Londrina State University University Campus, P.O. Box 10011, Celso Garcia Cid Highway, PR-445, Km 380-
Descrição: dc.descriptionFederal University of Agreste of Pernambuco, Pernambuco-
Descrição: dc.descriptionDepartment of Biodiversity Institute of Biosciences São Paulo State University, 24A Avenue-
Descrição: dc.descriptionDepartment of Plant Production Center for Agricultural Sciences Federal University of Alagoas, BR-104, Km 85, Destilaria Village, Alagoas-
Descrição: dc.descriptionDepartment of Biodiversity Institute of Biosciences São Paulo State University, 24A Avenue-
Idioma: dc.languageen-
Relação: dc.relationTheoretical and Applied Climatology-
???dc.source???: dc.sourceScopus-
Título: dc.titleChanges in the climatic water budget of an intermittent river in the Brazilian semiarid: trends in cyclical processes and their relation to teleconnection patterns-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.