Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador
Floods represent a severe cause of deaths and economic loss. In order to prevent, mitigate, and reduce flood risks and their consequences, hydraulic models allow analysing and mapping floods. The results of an appropriate model that works under local conditions are a valuable tool for local governme...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Universidad de Cuenca
2018-12-01
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| Series: | Maskana |
| Subjects: | |
| Online Access: | https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/2395 |
| _version_ | 1811276621876822016 |
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| author | Ana Ochoa-Sánchez Luis Timbe Angel Vázquez-Patiño Esteban Samaniego |
| author_facet | Ana Ochoa-Sánchez Luis Timbe Angel Vázquez-Patiño Esteban Samaniego |
| author_sort | Ana Ochoa-Sánchez |
| collection | DOAJ |
| description | Floods represent a severe cause of deaths and economic loss. In order to prevent, mitigate, and reduce flood risks and their consequences, hydraulic models allow analysing and mapping floods. The results of an appropriate model that works under local conditions are a valuable tool for local governments leading to sustainable management of floodplains. Around the world, high-mountain rivers have been poorly modelled; their orography and data scarcity present an extra research difficulty. Considering that all one-dimensional models assume that the river bed slope is small, this study evaluated two widely applied one-dimensional models: Mike11 and HEC-RAS, for modelling a high mountain river. Their best configuration under complex topographical conditions and their potential use was assessed by calibration and validation of the models. We found that the HEC-RAS model was not able to define a stable solution of the hydrodynamic modelling of the river, while Mike11 yielded stable results. Furthermore, the validation of the Mike11 model showed good performance. This study sets a precedent in the 1D modelling of high-mountain rivers with data scarcity. |
| first_indexed | 2024-04-12T23:59:54Z |
| format | Article |
| id | doaj.art-1e116d30168342fd852e954c47873867 |
| institution | Directory Open Access Journal |
| issn | 1390-6143 2477-8893 |
| language | English |
| last_indexed | 2024-04-12T23:59:54Z |
| publishDate | 2018-12-01 |
| publisher | Universidad de Cuenca |
| record_format | Article |
| series | Maskana |
| spelling | doaj.art-1e116d30168342fd852e954c478738672022-12-22T03:11:22ZengUniversidad de CuencaMaskana1390-61432477-88932018-12-01926774https://doi.org/10.18537/mskn.09.02.08Unidimensional, non-stationary modeling of a high mountain river in southern EcuadorAna Ochoa-Sánchez0Luis Timbe1Angel Vázquez-Patiño2Esteban Samaniego3Universidad de CuencaUniversidad de CuencaUniversidad de CuencaUniversidad de CuencaFloods represent a severe cause of deaths and economic loss. In order to prevent, mitigate, and reduce flood risks and their consequences, hydraulic models allow analysing and mapping floods. The results of an appropriate model that works under local conditions are a valuable tool for local governments leading to sustainable management of floodplains. Around the world, high-mountain rivers have been poorly modelled; their orography and data scarcity present an extra research difficulty. Considering that all one-dimensional models assume that the river bed slope is small, this study evaluated two widely applied one-dimensional models: Mike11 and HEC-RAS, for modelling a high mountain river. Their best configuration under complex topographical conditions and their potential use was assessed by calibration and validation of the models. We found that the HEC-RAS model was not able to define a stable solution of the hydrodynamic modelling of the river, while Mike11 yielded stable results. Furthermore, the validation of the Mike11 model showed good performance. This study sets a precedent in the 1D modelling of high-mountain rivers with data scarcity.https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/23951D river modellingHEC-RASMike11high-mountain riverEcuador |
| spellingShingle | Ana Ochoa-Sánchez Luis Timbe Angel Vázquez-Patiño Esteban Samaniego Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador Maskana 1D river modelling HEC-RAS Mike11 high-mountain river Ecuador |
| title | Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador |
| title_full | Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador |
| title_fullStr | Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador |
| title_full_unstemmed | Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador |
| title_short | Unidimensional, non-stationary modeling of a high mountain river in southern Ecuador |
| title_sort | unidimensional non stationary modeling of a high mountain river in southern ecuador |
| topic | 1D river modelling HEC-RAS Mike11 high-mountain river Ecuador |
| url | https://publicaciones.ucuenca.edu.ec/ojs/index.php/maskana/article/view/2395 |
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