Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method
The São Gonçalo Channel, located in the south of Brazil, is responsible for connecting the Mirim Lagoon to the Patos Lagoon, constituting the largest coastal lagoon system in Latin America. The assessment of its hydraulic variables is necessary given the importance of this channel for the region. Th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IWA Publishing
2023-01-01
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| Series: | Journal of Hydroinformatics |
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| Online Access: | http://jhydro.iwaponline.com/content/25/1/20 |
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| author | George Marino Soares Gonçalves Guilherme Kruger Bartels Luciana Shigihara Lima Lukas dos Santos Boeira Gilberto Loguercio Collares |
| author_facet | George Marino Soares Gonçalves Guilherme Kruger Bartels Luciana Shigihara Lima Lukas dos Santos Boeira Gilberto Loguercio Collares |
| author_sort | George Marino Soares Gonçalves |
| collection | DOAJ |
| description | The São Gonçalo Channel, located in the south of Brazil, is responsible for connecting the Mirim Lagoon to the Patos Lagoon, constituting the largest coastal lagoon system in Latin America. The assessment of its hydraulic variables is necessary given the importance of this channel for the region. Thus, this study aimed to evaluate the performance of the index velocity rating curve (IVRC) method, from velocity measurements provided by horizontal static-type acoustic Doppler profilers (H-ADCPs). For the two sections analyzed in this study (GS1 and GS2), IVRC models were developed considering the integrated velocity cell (IVC) method; the multi-cell velocity (MCV) method; the joint use of IVC and MCV; and a stage-mean velocity rating curve. The results point to an r2 of 0.986 (IVC), 0.998 (IVC + MCV), 0.534 (stage-mean velocity) at GS1, and r2 of 0.986 (IVC), 0.995 (IVC + MCV), and 0.815 (stage-mean velocity) at GS2. In both GS1 and GS2, results showed significant gains – for different flow conditions – on continuous estimations of flow velocities and discharges when considering the MCV + IVC method. The IVRC model that presented the best fit allowed the development of a time-series of discharges in the studied sites with high reliability.
HIGHLIGHTS
Assessment of the IVRC approaches on discharge estimations in a bi-directional natural channel.;
Increment of reliability while moving from an SQRC on discharge estimations to an IVRC approach.;
The possibility of registering complex flow situations from an in situ horizontal static-type ADPC.; |
| first_indexed | 2024-04-10T09:32:48Z |
| format | Article |
| id | doaj.art-1db0091767544cc89bc4dbd1de9397c2 |
| institution | Directory Open Access Journal |
| issn | 1464-7141 1465-1734 |
| language | English |
| last_indexed | 2024-04-24T07:35:58Z |
| publishDate | 2023-01-01 |
| publisher | IWA Publishing |
| record_format | Article |
| series | Journal of Hydroinformatics |
| spelling | doaj.art-1db0091767544cc89bc4dbd1de9397c22024-04-20T06:17:44ZengIWA PublishingJournal of Hydroinformatics1464-71411465-17342023-01-01251203510.2166/hydro.2023.045045Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve methodGeorge Marino Soares Gonçalves0Guilherme Kruger Bartels1Luciana Shigihara Lima2Lukas dos Santos Boeira3Gilberto Loguercio Collares4 Universidade Federal de Pelotas, Pelotas, Brazil UFRGS: Universidade Federal do Rio Grande do Sul, Pelotas, Brazil INPE: Instituto Nacional de Pesquisas Espaciais, São José Dos Campos, Brazil UFPEL: Universidade Federal de Pelotas, Pelotas, Brazil Engenharia Hídrica/Centro de Desenvolvimento Tecnológico, Universidade Federal de Pelotas, Gomes Carneiro, 01, Pelotas, Rio Grande do Sul 96010-610, Pelotas, Brazil The São Gonçalo Channel, located in the south of Brazil, is responsible for connecting the Mirim Lagoon to the Patos Lagoon, constituting the largest coastal lagoon system in Latin America. The assessment of its hydraulic variables is necessary given the importance of this channel for the region. Thus, this study aimed to evaluate the performance of the index velocity rating curve (IVRC) method, from velocity measurements provided by horizontal static-type acoustic Doppler profilers (H-ADCPs). For the two sections analyzed in this study (GS1 and GS2), IVRC models were developed considering the integrated velocity cell (IVC) method; the multi-cell velocity (MCV) method; the joint use of IVC and MCV; and a stage-mean velocity rating curve. The results point to an r2 of 0.986 (IVC), 0.998 (IVC + MCV), 0.534 (stage-mean velocity) at GS1, and r2 of 0.986 (IVC), 0.995 (IVC + MCV), and 0.815 (stage-mean velocity) at GS2. In both GS1 and GS2, results showed significant gains – for different flow conditions – on continuous estimations of flow velocities and discharges when considering the MCV + IVC method. The IVRC model that presented the best fit allowed the development of a time-series of discharges in the studied sites with high reliability. HIGHLIGHTS Assessment of the IVRC approaches on discharge estimations in a bi-directional natural channel.; Increment of reliability while moving from an SQRC on discharge estimations to an IVRC approach.; The possibility of registering complex flow situations from an in situ horizontal static-type ADPC.;http://jhydro.iwaponline.com/content/25/1/20acoustic profilerbi-directional flowshydrodynamicindex velocity rating curve |
| spellingShingle | George Marino Soares Gonçalves Guilherme Kruger Bartels Luciana Shigihara Lima Lukas dos Santos Boeira Gilberto Loguercio Collares Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method Journal of Hydroinformatics acoustic profiler bi-directional flows hydrodynamic index velocity rating curve |
| title | Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method |
| title_full | Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method |
| title_fullStr | Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method |
| title_full_unstemmed | Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method |
| title_short | Continuous discharge monitoring of the Mirim-São Gonçalo system by the index velocity rating curve method |
| title_sort | continuous discharge monitoring of the mirim sao goncalo system by the index velocity rating curve method |
| topic | acoustic profiler bi-directional flows hydrodynamic index velocity rating curve |
| url | http://jhydro.iwaponline.com/content/25/1/20 |
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