Water Security and River Basin Revitalization of the São Francisco River Basin: A Symbiotic Relationship

Rosa, Larissa; Morais, Manuela; Saito, Carlos Hiroo

doi:10.3390/w13070907

Cited by 3 publications

(1 citation statement)

References 19 publications

(24 reference statements)

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“…Conversaly, the MOFL could become a management tool to promote revitalization of the river banks and floodplain in concert with the communities and the River Basin Committee. It has been pointed out that the River Basin Committee tends to prioritizes such revitalization programs instead of large infrastructure programs like dams and transposition (Alves da Silva Rosa et al, 2021).…”

Section: Stationmentioning

confidence: 99%

Challenges of defining the floodplain through the “mean ordinary flood line” approach using remote sensing in Brazil: a case study of the São Francisco River

Maillard

Gomes²,

Pôssa

et al. 2022

RBRH

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The “Mean Ordinary Flood Line” (MOFL) is a conceptual line adopted by Brazil’s Federal Government to delineate land within the floodplain under its ownership and jurisdiction having major social implications. Past attempts at the cartography of this line have encountered strong difficulties brought either by a low precision or an excessive cost. In this article, we propose a method based on historical water gauge data to determine the water level corresponding to the MOFL. Satellite images coincident with past dates when the MOFL was reached are selected and processed to extract the water surface from which the MOFL can then be produced. The approach was implemented in a 600 km reach of the São Francisco River in Minas Gerais as a pilot project. A field survey served to validate the results. The positional accuracy of the MOFL was estimated at 24 m which was considered excellent since mostly Landsat images with a spatial resolution of 30 m were used.

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Section: Stationmentioning

confidence: 99%

Challenges of defining the floodplain through the “mean ordinary flood line” approach using remote sensing in Brazil: a case study of the São Francisco River

Maillard

Gomes²,

Pôssa

et al. 2022

RBRH

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Assessment of Precipitation Deficit in the São Francisco River Basin From 1998 to 2018

Damasceno,

Oliveira,

Pereira

et al. 2023

Rev. bras. meteorol.

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Recebido em: 4 de Outubro de 2022 -Aceito em: 4 de Novembro de 2022 ResumoEste trabalho apresenta uma avaliação do déficit de precipitação na Bacia Hidrográfica do Rio São Francisco (SFRB) com base em análises temporais, sazonais e regionais de duas décadas de produtos de dados de precipitação derivados de missões de satélite lançadas desde 1997. As análises temporais foram realizadas por meio de três Série temporal SPI de 3 meses, composta por 250 valores cada, derivados de estimativas TRMM, CHIRPS e PERSIANN-CDR. Análises sazonais e regionais foram feitas com diferenças nas quantidades médias de precipitação entre a última década, abrangendo de janeiro de 2008 a dezembro de 2018, e a década anterior, abrangendo de janeiro de 1998 a dezembro de 2007, para cada célula da grade no domínio do SFRB. O resultado da análise temporal mostra que o SFRB passou por períodos mais longos e mais secos na década 2008-2018. Os resultados das análises sazonais e regionais sugerem que o défice de precipitação foi mais forte durante o verão; e que a parte superior do SFRB foi a mais impactada pelo déficit de precipitação ocorrido nas últimas duas décadas.

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Prospective Water Balance Scenarios (2015–2035) for the Management of São Francisco River Basin, Eastern Brazil

Bettencourt

Oliveira²,

Fulgêncio³

et al. 2022

Water

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The need for renewed and healthier water resources pushes human society to develop new management procedures that warrant provisions and that are compatible with the population and economic growth. The São Francisco River is one of the main surface water resources in Brazil and is facing environmental challenges that threaten its sustainability. In the scope of growing conflicts over water resources in the São Francisco River Basin, the present research applied surface and groundwater balances for the current situation and for three prospective water demand scenarios (a pessimistic, an optimistic and an equilibrated) referring to 2025 and 2035, considering the multiple uses of the basin. For the surface water balance, the AcquaNet Decision Support System was used, whereas for the groundwater balance, the relationship between the withdrawal flow for consumptive uses and the exploitable flow was applied. The results evidenced that there are scenarios in which the available surface water resources will not be sufficient to satisfy the demanded projections. The groundwater balance was characterized as more favourable; however, the lack of knowledge creates uncertainties about these resources. Beyond its limitations, research was able to define geographical water availability and balance, allowing the indication of precise management procedures.

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Water Security and River Basin Revitalization of the São Francisco River Basin: A Symbiotic Relationship

Cited by 3 publications

References 19 publications

Challenges of defining the floodplain through the “mean ordinary flood line” approach using remote sensing in Brazil: a case study of the São Francisco River

Challenges of defining the floodplain through the “mean ordinary flood line” approach using remote sensing in Brazil: a case study of the São Francisco River

Assessment of Precipitation Deficit in the São Francisco River Basin From 1998 to 2018

Prospective Water Balance Scenarios (2015–2035) for the Management of São Francisco River Basin, Eastern Brazil

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