Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime
Abstract This paper estimated the total water storage variation in the southern rim of the Guarani Aquifer System during a three-year time span, making use of data provided by the Gravity Recovery and Climate Experiment. Monthly data were used to estimate the Bouguer anomaly in Southern Brazil. A di...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Geologia
2021-05-01
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| Series: | Brazilian Journal of Geology |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000200308&tlng=en |
| _version_ | 1818974910347739136 |
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| author | Vanessa da Conceição Osório Cássio Stein Moura |
| author_facet | Vanessa da Conceição Osório Cássio Stein Moura |
| author_sort | Vanessa da Conceição Osório |
| collection | DOAJ |
| description | Abstract This paper estimated the total water storage variation in the southern rim of the Guarani Aquifer System during a three-year time span, making use of data provided by the Gravity Recovery and Climate Experiment. Monthly data were used to estimate the Bouguer anomaly in Southern Brazil. A direct modeling, using the Bouguer plateau, was applied to quantitatively estimate the water volume variation of a specific thickness in the studied region. Meteorological almanac data were compared to the gravitational alterations. We found a direct proportionality between the monthly rain average and the water table level. A simple model was found to forecast water accumulation as a function of rainfall regime, which is validated by a Pearson index of 0.82 that indicates a strong correlation between pluviometric and gravimetric data. In order to raise the stored water level near the recharge area by 1 mm, approximately 3 mm of rainfall is needed. |
| first_indexed | 2024-12-20T15:47:34Z |
| format | Article |
| id | doaj.art-a655b11579fc4c72a58c81c0088bb48e |
| institution | Directory Open Access Journal |
| issn | 2317-4692 |
| language | English |
| last_indexed | 2024-12-20T15:47:34Z |
| publishDate | 2021-05-01 |
| publisher | Sociedade Brasileira de Geologia |
| record_format | Article |
| series | Brazilian Journal of Geology |
| spelling | doaj.art-a655b11579fc4c72a58c81c0088bb48e2022-12-21T19:34:52ZengSociedade Brasileira de GeologiaBrazilian Journal of Geology2317-46922021-05-0151210.1590/2317-4889202120200079Water level alterations on the southern rim of the Guarani Aquifer due to the rain regimeVanessa da Conceição Osóriohttps://orcid.org/0000-0002-9253-4565Cássio Stein Mourahttps://orcid.org/0000-0002-1708-7128Abstract This paper estimated the total water storage variation in the southern rim of the Guarani Aquifer System during a three-year time span, making use of data provided by the Gravity Recovery and Climate Experiment. Monthly data were used to estimate the Bouguer anomaly in Southern Brazil. A direct modeling, using the Bouguer plateau, was applied to quantitatively estimate the water volume variation of a specific thickness in the studied region. Meteorological almanac data were compared to the gravitational alterations. We found a direct proportionality between the monthly rain average and the water table level. A simple model was found to forecast water accumulation as a function of rainfall regime, which is validated by a Pearson index of 0.82 that indicates a strong correlation between pluviometric and gravimetric data. In order to raise the stored water level near the recharge area by 1 mm, approximately 3 mm of rainfall is needed.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000200308&tlng=enGuarani Aquifer SystemGravity Recovery and Climate ExperimentBouguer anomalygravimetry |
| spellingShingle | Vanessa da Conceição Osório Cássio Stein Moura Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime Brazilian Journal of Geology Guarani Aquifer System Gravity Recovery and Climate Experiment Bouguer anomaly gravimetry |
| title | Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime |
| title_full | Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime |
| title_fullStr | Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime |
| title_full_unstemmed | Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime |
| title_short | Water level alterations on the southern rim of the Guarani Aquifer due to the rain regime |
| title_sort | water level alterations on the southern rim of the guarani aquifer due to the rain regime |
| topic | Guarani Aquifer System Gravity Recovery and Climate Experiment Bouguer anomaly gravimetry |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2317-48892021000200308&tlng=en |
| work_keys_str_mv | AT vanessadaconceicaoosorio waterlevelalterationsonthesouthernrimoftheguaraniaquiferduetotherainregime AT cassiosteinmoura waterlevelalterationsonthesouthernrimoftheguaraniaquiferduetotherainregime |