Water balance model evaluation based on an estimate of potential recharge
The free aquifer recharge is a process of major importance in groundwater hydrology because it represents the renewable reserves of the water source. A good estimate of this variable is therefore critical to the proper management of water resources, particularly in light of climate variability inher...
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Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)
2016-11-01
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| Series: | Revista Ambiente & Água |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2016000400915&lng=pt&nrm=iso&tlng=pt |
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| author | Lucas Machado Pontes Gilberto Coelho Carlos Rogério de Mello Antônio Marciano da Silva Geraldo César Oliveira Marcelo Ribeiro Viola |
| author_facet | Lucas Machado Pontes Gilberto Coelho Carlos Rogério de Mello Antônio Marciano da Silva Geraldo César Oliveira Marcelo Ribeiro Viola |
| author_sort | Lucas Machado Pontes |
| collection | DOAJ |
| description | The free aquifer recharge is a process of major importance in groundwater hydrology because it represents the renewable reserves of the water source. A good estimate of this variable is therefore critical to the proper management of water resources, particularly in light of climate variability inherent to the climate regime, as well as the increasing of surface water pollution and increased demand for good quality water groundwater. This study used a water balance model in soil to estimate the potential recharge (Rp) of the unconfined aquifer and the other components of the hydrological cycle. The model was applied in two watershed headwaters of the Rio Grande in Minas Gerais, Brazil: the Lavrinha River Basin (BHRL) and the Marcela River Basin (BHRM). The BHRL presents higher values of Rp, with an annual average of 895 mm, which corresponds to 40% of rainfall, while at the BHRM these values were 393.3 mm and 25%, respectively. The base runoff values confirm the greater recharge in BRHL, where this hydrograph component corresponded to 76% of the total discharge, compared with 40% for BHRM. The BALSEQ model allowed us to capture this difference, but the results were satisfactory for only one of the years in the BHRL and for the entire period for the BHRM, which reinforces the need to use this model for long time periods. |
| first_indexed | 2024-12-11T09:42:11Z |
| format | Article |
| id | doaj.art-6d859b1ab03b4de098e5e4ae29f0cdf8 |
| institution | Directory Open Access Journal |
| issn | 1980-993X |
| language | English |
| last_indexed | 2024-12-11T09:42:11Z |
| publishDate | 2016-11-01 |
| publisher | Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) |
| record_format | Article |
| series | Revista Ambiente & Água |
| spelling | doaj.art-6d859b1ab03b4de098e5e4ae29f0cdf82022-12-22T01:12:39ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2016-11-0111492994210.4136/ambi-agua.1856 Water balance model evaluation based on an estimate of potential rechargeLucas Machado Pontes0Gilberto Coelho1Carlos Rogério de Mello2Antônio Marciano da Silva3Geraldo César Oliveira4Marcelo Ribeiro Viola5Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Ciência do Solo.Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Engenharia.Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Engenharia.Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Engenharia.Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Ciência do Solo.Universidade Federal de Lavras (UFLA), Lavras, MG, Brasil. Departamento de Engenharia.The free aquifer recharge is a process of major importance in groundwater hydrology because it represents the renewable reserves of the water source. A good estimate of this variable is therefore critical to the proper management of water resources, particularly in light of climate variability inherent to the climate regime, as well as the increasing of surface water pollution and increased demand for good quality water groundwater. This study used a water balance model in soil to estimate the potential recharge (Rp) of the unconfined aquifer and the other components of the hydrological cycle. The model was applied in two watershed headwaters of the Rio Grande in Minas Gerais, Brazil: the Lavrinha River Basin (BHRL) and the Marcela River Basin (BHRM). The BHRL presents higher values of Rp, with an annual average of 895 mm, which corresponds to 40% of rainfall, while at the BHRM these values were 393.3 mm and 25%, respectively. The base runoff values confirm the greater recharge in BRHL, where this hydrograph component corresponded to 76% of the total discharge, compared with 40% for BHRM. The BALSEQ model allowed us to capture this difference, but the results were satisfactory for only one of the years in the BHRL and for the entire period for the BHRM, which reinforces the need to use this model for long time periods.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2016000400915&lng=pt&nrm=iso&tlng=ptBALSEQ; hydrology; modeling. |
| spellingShingle | Lucas Machado Pontes Gilberto Coelho Carlos Rogério de Mello Antônio Marciano da Silva Geraldo César Oliveira Marcelo Ribeiro Viola Water balance model evaluation based on an estimate of potential recharge Revista Ambiente & Água BALSEQ; hydrology; modeling. |
| title | Water balance model evaluation based on an estimate of potential recharge |
| title_full | Water balance model evaluation based on an estimate of potential recharge |
| title_fullStr | Water balance model evaluation based on an estimate of potential recharge |
| title_full_unstemmed | Water balance model evaluation based on an estimate of potential recharge |
| title_short | Water balance model evaluation based on an estimate of potential recharge |
| title_sort | water balance model evaluation based on an estimate of potential recharge |
| topic | BALSEQ; hydrology; modeling. |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1980-993X2016000400915&lng=pt&nrm=iso&tlng=pt |
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