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Campo DCValorIdioma
dc.creatorJunqueira, Rubens-
dc.creatorViola, Marcelo R.-
dc.creatorAmorim, Jhones da S.-
dc.creatorMello, Carlos R. de-
dc.date.accessioned2021-06-08T19:34:40Z-
dc.date.available2021-06-08T19:34:40Z-
dc.date.issued2020-10-
dc.identifier.citationJUNQUEIRA, R. et al. Hydrological Response to Drought Occurrences in a Brazilian Savanna Basin. Resources, [S. I.], v. 9, n. 10, 2020. DOI: 10.3390/resources9100123.pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/46483-
dc.description.abstractThe Brazilian savanna is one of the world’s 25 biodiversity hotspots. However, droughts can decrease water availability in this biome. This study aimed to analyze meteorological and hydrological droughts and their influence on the hydrological behavior in a Brazilian savanna basin. For that, hydrological indicators were calculated to analyze the hydrological behavior in the Pandeiros river basin (PRB). The Standardized Precipitation Index (SPI) and Standardized Streamflow Index (SSI) were calculated for the hydrological year and rainy season from 1977 to 2018. The propagation of the meteorological to hydrological drought was studied by means of the Pearson coefficient of correlation between the SSI and SPI with 0, 3, 6, 9, and 12-month lags. A longer meteorological drought was observed from 2014/15 to 2017/18 which caused a reduction in the groundwater recharge, besides potentially reducing the ecological functions of the Brazilian savanna. This drought was intensified by an increase in the average annual temperature, resulting in the increasing of evapotranspiration. Regarding drought propagation, there is no significant difference among the coefficients of correlation from 0 to 6-month lags. For the lags of 9 and 12 months, the correlation decreases, indicating a greater influence of the current rainy season than the past ones.pt_BR
dc.languageenpt_BR
dc.publisherMolecular Diversity Preservation International - MDPIpt_BR
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceResourcespt_BR
dc.subjectExtreme eventspt_BR
dc.subjectHydrological indicatorspt_BR
dc.subjectStandardized Precipitation Index (SPI)pt_BR
dc.subjectStandardized Streamflow Index (SSI)pt_BR
dc.subjectWater resources managementpt_BR
dc.subjectEventos extremospt_BR
dc.subjectIndicadores hidrológicospt_BR
dc.subjectÍndice Padronizado de Precipitaçãopt_BR
dc.subjectÍndice Padronizado de Escoamentopt_BR
dc.subjectGestão de recursos hídricospt_BR
dc.subjectSecaspt_BR
dc.titleHydrological Response to Drought Occurrences in a Brazilian Savanna Basinpt_BR
dc.typeArtigopt_BR
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