Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data
Specific yield is a key parameter for the sustainable management of unconfined aquifers, since it relates water-table fluctuations to aquifer storage-changes and thus impacts water supply. However, estimating specific yield is still a challenge due to theoretical and methodological limitations. Wate...
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| Autores principales: | , , , , |
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| Formato: | Articulo |
| Lenguaje: | Inglés |
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2020
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| Acceso en línea: | http://sedici.unlp.edu.ar/handle/10915/140260 |
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I19-R120-10915-140260 |
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dspace |
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Universidad Nacional de La Plata |
| institution_str |
I-19 |
| repository_str |
R-120 |
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SEDICI (UNLP) |
| language |
Inglés |
| topic |
Ciencias Astronómicas Ciencias Exactas Specific yield Superconducting gravimeter Gravity variations Geophysical methods Argentina |
| spellingShingle |
Ciencias Astronómicas Ciencias Exactas Specific yield Superconducting gravimeter Gravity variations Geophysical methods Argentina Pendiuk, Jonatan Emmanuel Guarracino, Luis Reich, Marvin Brunini, Claudio Antonio Güntner, Andreas Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| topic_facet |
Ciencias Astronómicas Ciencias Exactas Specific yield Superconducting gravimeter Gravity variations Geophysical methods Argentina |
| description |
Specific yield is a key parameter for the sustainable management of unconfined aquifers, since it relates water-table fluctuations to aquifer storage-changes and thus impacts water supply. However, estimating specific yield is still a challenge due to theoretical and methodological limitations. Water-storage changes in the aquifer and in the overlying unsaturated soil profile cause local changes in gravity that can be recorded by high-precision superconducting gravimeters. In this work, a novel methodology to estimate specific yield from superconducting gravimeter data is presented. The proposed methodology is based on a hydrogravimetric model that estimates the gravity response due to the loss and gain of water mass in the soil profile using rainfall, water-table and air-temperature data. The model is applied to a study site of the Pampeano aquifer in Argentina where a continuous 1-year record of superconducting gravimeter measurements is available. The specific yield value obtained using this methodology is 0.11 ± 0.039, which is validated by means of a long-term pumping test performed at the study site. The proposed method constitutes a promising alternative to the available tools for estimating specific yield, by taking advantage of superconducting gravity data. |
| format |
Articulo Articulo |
| author |
Pendiuk, Jonatan Emmanuel Guarracino, Luis Reich, Marvin Brunini, Claudio Antonio Güntner, Andreas |
| author_facet |
Pendiuk, Jonatan Emmanuel Guarracino, Luis Reich, Marvin Brunini, Claudio Antonio Güntner, Andreas |
| author_sort |
Pendiuk, Jonatan Emmanuel |
| title |
Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| title_short |
Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| title_full |
Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| title_fullStr |
Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| title_full_unstemmed |
Estimating the specific yield of the Pampeano aquifer, Argentina, using superconducting gravimeter data |
| title_sort |
estimating the specific yield of the pampeano aquifer, argentina, using superconducting gravimeter data |
| publishDate |
2020 |
| url |
http://sedici.unlp.edu.ar/handle/10915/140260 |
| work_keys_str_mv |
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Repositorios |
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