Estimating the water balance of a small reservoir in the Brazilian semiarid

<p>Small communities in semi-arid regions usually suffer from a lack of data to enable effective water management. This is the case for many rural communities in Brazil that rely on small reservoirs. The aim of this study is to extract information on water storage and water flows of Lagoa Cerc...

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Main Authors: Á. B. S. Estácio, L. Vieira, S. Linhares, R. Alves, R. Rocha, E. Martins
Format: Article
Language:English
Published: Copernicus Publications 2024-04-01
Series:Proceedings of the International Association of Hydrological Sciences
Online Access:https://piahs.copernicus.org/articles/385/291/2024/piahs-385-291-2024.pdf
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author Á. B. S. Estácio
L. Vieira
S. Linhares
R. Alves
R. Rocha
E. Martins
author_facet Á. B. S. Estácio
L. Vieira
S. Linhares
R. Alves
R. Rocha
E. Martins
author_sort Á. B. S. Estácio
collection DOAJ
description <p>Small communities in semi-arid regions usually suffer from a lack of data to enable effective water management. This is the case for many rural communities in Brazil that rely on small reservoirs. The aim of this study is to extract information on water storage and water flows of Lagoa Cercada, a small reservoir in the Brazilian semi-arid region. Monthly data series of water levels and water quality were combined with remote sensing information to evaluate water storage in the reservoir. Inflow, withdrawal, and infiltration were calculated using water and salinity balance in the reservoir. The calculated capacity of Lagoa Cercada reservoir was 1.14 million cubic meters. However, using satellite imagery instead of drone imagery resulted in a 51 % difference in the estimation of storage capacity. Additionally, Lagoa Cercada's water withdrawal has not returned to the same amount as before the drought.</p>
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spelling doaj.art-e2a25d5fae824e2397ed6026a305830b2024-04-18T12:49:08ZengCopernicus PublicationsProceedings of the International Association of Hydrological Sciences2199-89812199-899X2024-04-0138529129610.5194/piahs-385-291-2024Estimating the water balance of a small reservoir in the Brazilian semiaridÁ. B. S. EstácioL. VieiraS. LinharesR. AlvesR. RochaE. Martins<p>Small communities in semi-arid regions usually suffer from a lack of data to enable effective water management. This is the case for many rural communities in Brazil that rely on small reservoirs. The aim of this study is to extract information on water storage and water flows of Lagoa Cercada, a small reservoir in the Brazilian semi-arid region. Monthly data series of water levels and water quality were combined with remote sensing information to evaluate water storage in the reservoir. Inflow, withdrawal, and infiltration were calculated using water and salinity balance in the reservoir. The calculated capacity of Lagoa Cercada reservoir was 1.14 million cubic meters. However, using satellite imagery instead of drone imagery resulted in a 51 % difference in the estimation of storage capacity. Additionally, Lagoa Cercada's water withdrawal has not returned to the same amount as before the drought.</p>https://piahs.copernicus.org/articles/385/291/2024/piahs-385-291-2024.pdf
spellingShingle Á. B. S. Estácio
L. Vieira
S. Linhares
R. Alves
R. Rocha
E. Martins
Estimating the water balance of a small reservoir in the Brazilian semiarid
Proceedings of the International Association of Hydrological Sciences
title Estimating the water balance of a small reservoir in the Brazilian semiarid
title_full Estimating the water balance of a small reservoir in the Brazilian semiarid
title_fullStr Estimating the water balance of a small reservoir in the Brazilian semiarid
title_full_unstemmed Estimating the water balance of a small reservoir in the Brazilian semiarid
title_short Estimating the water balance of a small reservoir in the Brazilian semiarid
title_sort estimating the water balance of a small reservoir in the brazilian semiarid
url https://piahs.copernicus.org/articles/385/291/2024/piahs-385-291-2024.pdf
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