Water loss in transit in an intermittent river in brazilian semi-arid
Riverwater often comes into contact with the underground flow in aquifers. When this contact occurs, the river and aquifer are considered to be hydraulically connected. In recent decades, there has been great interest in trying to to improve understanding of the interactions occuring between superfi...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Roraima
2018-10-01
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| Series: | Agro@mbiente On-line |
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| Online Access: | https://revista.ufrr.br/agroambiente/article/view/5090 |
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| author | Cristian Epifanio Toledo Emanuelly de Moura Silva Almeida Alexandre Vicente Lopes Neto Thályta Lharyssa Gonçalves Rodrigues Gonçalves Rodrigues Silva Filipe Augusto Rodrigues Santos |
| author_facet | Cristian Epifanio Toledo Emanuelly de Moura Silva Almeida Alexandre Vicente Lopes Neto Thályta Lharyssa Gonçalves Rodrigues Gonçalves Rodrigues Silva Filipe Augusto Rodrigues Santos |
| author_sort | Cristian Epifanio Toledo |
| collection | DOAJ |
| description | Riverwater often comes into contact with the underground flow in aquifers. When this contact occurs, the river and aquifer are considered to be hydraulically connected. In recent decades, there has been great interest in trying to to improve understanding of the interactions occuring between superficial and subterranean water systems. A variety of analytical solutions have been proposed to describe the interaction of confined and free aquifers with adjacent rivers, including the quantification of the decrease of river flow along its course. The objective of the current study was to calibrate and validate a loss-in-transit flow model for rivers, and to evaluate the minimum flow that still permits connectivity between water sources in the Alto Jaguaribe basin. The methodology used was based on the equation of continuity and mass balance along the study river. A modified Araújo and Ribeiro equation showed strong applicability to loss-in-transit generation, with a mean loss in transit of 3.6% km-1, and a Nash and Sutcliffe Efficiency value of 0.29. On the other hand, the classbased loss of upstream flow generated 4 classes with a mean of 2.6% km-1 and showed great improvement, reaching an NSE of 0.74 - high efficiency. Minimum flows were below the regular flow recorded by the Ceará Secretariat of Water Resources, showing that the ability exists in the region hydrological connectivity between reservoirs in the Alto Jaguaribe basin and for alluvial aquifers to be recharged. |
| format | Article |
| id | doaj-art-d80998f47f95494d814c099c6c20e522 |
| institution | Kabale University |
| issn | 1982-8470 |
| language | English |
| publishDate | 2018-10-01 |
| publisher | Universidade Federal de Roraima |
| record_format | Article |
| series | Agro@mbiente On-line |
| spelling | doaj-art-d80998f47f95494d814c099c6c20e5222025-02-04T15:01:11ZengUniversidade Federal de RoraimaAgro@mbiente On-line1982-84702018-10-01123Water loss in transit in an intermittent river in brazilian semi-aridCristian Epifanio Toledo0Emanuelly de Moura Silva Almeida1Alexandre Vicente Lopes Neto2Thályta Lharyssa Gonçalves Rodrigues Gonçalves Rodrigues Silva3Filipe Augusto Rodrigues Santos4Universidade Estadual de GoiásUniversidade Estadual de GoiásUniversidade Estadual de GoiásUniversidade Estadual de GoiásUniversidade Estadual de GoiásRiverwater often comes into contact with the underground flow in aquifers. When this contact occurs, the river and aquifer are considered to be hydraulically connected. In recent decades, there has been great interest in trying to to improve understanding of the interactions occuring between superficial and subterranean water systems. A variety of analytical solutions have been proposed to describe the interaction of confined and free aquifers with adjacent rivers, including the quantification of the decrease of river flow along its course. The objective of the current study was to calibrate and validate a loss-in-transit flow model for rivers, and to evaluate the minimum flow that still permits connectivity between water sources in the Alto Jaguaribe basin. The methodology used was based on the equation of continuity and mass balance along the study river. A modified Araújo and Ribeiro equation showed strong applicability to loss-in-transit generation, with a mean loss in transit of 3.6% km-1, and a Nash and Sutcliffe Efficiency value of 0.29. On the other hand, the classbased loss of upstream flow generated 4 classes with a mean of 2.6% km-1 and showed great improvement, reaching an NSE of 0.74 - high efficiency. Minimum flows were below the regular flow recorded by the Ceará Secretariat of Water Resources, showing that the ability exists in the region hydrological connectivity between reservoirs in the Alto Jaguaribe basin and for alluvial aquifers to be recharged.https://revista.ufrr.br/agroambiente/article/view/5090Loss in transitRiver flowHydrological connectivityJaguaribe Riber. |
| spellingShingle | Cristian Epifanio Toledo Emanuelly de Moura Silva Almeida Alexandre Vicente Lopes Neto Thályta Lharyssa Gonçalves Rodrigues Gonçalves Rodrigues Silva Filipe Augusto Rodrigues Santos Water loss in transit in an intermittent river in brazilian semi-arid Agro@mbiente On-line Loss in transit River flow Hydrological connectivity Jaguaribe Riber. |
| title | Water loss in transit in an intermittent river in brazilian semi-arid |
| title_full | Water loss in transit in an intermittent river in brazilian semi-arid |
| title_fullStr | Water loss in transit in an intermittent river in brazilian semi-arid |
| title_full_unstemmed | Water loss in transit in an intermittent river in brazilian semi-arid |
| title_short | Water loss in transit in an intermittent river in brazilian semi-arid |
| title_sort | water loss in transit in an intermittent river in brazilian semi arid |
| topic | Loss in transit River flow Hydrological connectivity Jaguaribe Riber. |
| url | https://revista.ufrr.br/agroambiente/article/view/5090 |
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