Watershed delineation and codification in southern Patagonia
Watershed definition is fundamental for integrated management of water resources, considering the social, productive and environmental demands. The watershed spatial delimitation is essential to understand eco-hydrological processes in the territory and management. The object...
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| Formato: | Artículo revista |
| Lenguaje: | Español |
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Departamento de Geografía. Facultad de Humanidades. Universidad Nacional del Comahue
2021
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| Acceso en línea: | https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264 |
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I22-R128-article-32642023-02-08T16:32:44Z Watershed delineation and codification in southern Patagonia Delineación y codificación de cuencas hidrográficas en la Patagonia Austral Diaz, Boris Gastón Giménez, Melisa Almonacid, Leandro Gaspari, Fernanda Bertinat, Mariano Peri, Pablo Luis Hidrología SIG recursos hídricos GIRH Hydrology GIS water resources IWRM Watershed definition is fundamental for integrated management of water resources, considering the social, productive and environmental demands. The watershed spatial delimitation is essential to understand eco-hydrological processes in the territory and management. The objective of this work was to delineate and code the hydrographic regions of Southern Patagonia under standardized procedures and new geographic information technologies. The ALOS World 3D model, WorldViewhigh-resolution scenes and QGIS 3.12 free software algorithms were used to carry out automated watershed delineations at various hydrological nesting levels, and subsequent coding and nomenclature. A precise cartographic product was achieved at a scale of1: 25,000 on a territory of 366,357.4 km2. This results in 7,307 hydrographic units distributed in 5 levels, with 14 large hydrographic regions (RH) in the upper level, 46 sub-regions, 249 hydrographic basins, 1,110 sub-basins and 5,888 micro-basins. The cartography achieved improved the resolution and precision of actual available regional products, representing a valuable tool for the sustainable water resources management at different levels of organization and complexity of natural processes. La definición de la cuenca hidrográfica es fundamental para enfrentar los desafíos de la gestión integrada de los recursos hídricos, considerando las demandas sociales, productivas y ambientales. Su apropiada delimitación espacial es una condición esencial para la comprensión de procesos ecohidrológicos en el territorio en diferentes escalas. En este trabajo se desarrolló la delineación y codificación de regiones hidrográficas al sur de la Patagonia Austral bajo procedimientos estandarizados y nuevas tecnologías de geoinformación, aún sin antecedentes en la región. Se trabajó con el modelo ALOS World 3D, escenas de alta resolución WorldView y algoritmos del software libre QGIS 3.12 para realizar delineaciones automatizadas de cuencas en diversos niveles de anidación hidrológica y su posterior codificación y nomenclado. Se logró un producto cartográfico preciso, en escala 1:25.000, sobre un territorio de 366.357,4 km2, consistente en 7.307 unidades hidrográficas distribuidas en 5 niveles, con 14 grandes regiones hidrográficas (RH), en el nivel superior, 46 subregiones, 249 cuencas hidrográficas, 1.110 subcuencas y 5.888 microcuencas. La cartografía lograda mejoró la resolución y precisión de productos regionales disponibles, representando una herramienta valiosa para la gestión del recurso agua en diferentes niveles de organización y complejidad de los procesos naturales. Departamento de Geografía. Facultad de Humanidades. Universidad Nacional del Comahue 2021-12-30 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Investigación aplicada application/pdf text/html image/jpeg image/jpeg https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264 Boletín Geográfico; Vol. 43 No. 2 (2021): Boletín Geográfico 43(2) Boletin Geografico; Vol. 43 Núm. 2 (2021): Boletín Geográfico 43(2) 2313-903X 0326-1735 spa https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264/pdf https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264/html https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264/60622 https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264/60623 Derechos de autor 2021 Boletín Geográfico https://creativecommons.org/licenses/by-nc-nd/2.5/ar/ |
| institution |
Universidad Nacional del Comahue |
| institution_str |
I-22 |
| repository_str |
R-128 |
| container_title_str |
Repositorio de Revistas Electrónicas REVELE (UNComahue) |
| language |
Español |
| format |
Artículo revista |
| topic |
Hidrología SIG recursos hídricos GIRH Hydrology GIS water resources IWRM |
| spellingShingle |
Hidrología SIG recursos hídricos GIRH Hydrology GIS water resources IWRM Diaz, Boris Gastón Giménez, Melisa Almonacid, Leandro Gaspari, Fernanda Bertinat, Mariano Peri, Pablo Luis Watershed delineation and codification in southern Patagonia |
| topic_facet |
Hidrología SIG recursos hídricos GIRH Hydrology GIS water resources IWRM |
| author |
Diaz, Boris Gastón Giménez, Melisa Almonacid, Leandro Gaspari, Fernanda Bertinat, Mariano Peri, Pablo Luis |
| author_facet |
Diaz, Boris Gastón Giménez, Melisa Almonacid, Leandro Gaspari, Fernanda Bertinat, Mariano Peri, Pablo Luis |
| author_sort |
Diaz, Boris Gastón |
| title |
Watershed delineation and codification in southern Patagonia |
| title_short |
Watershed delineation and codification in southern Patagonia |
| title_full |
Watershed delineation and codification in southern Patagonia |
| title_fullStr |
Watershed delineation and codification in southern Patagonia |
| title_full_unstemmed |
Watershed delineation and codification in southern Patagonia |
| title_sort |
watershed delineation and codification in southern patagonia |
| description |
Watershed definition is fundamental for integrated management of water resources, considering the social, productive and environmental demands. The watershed spatial delimitation is essential to understand eco-hydrological processes in the territory and management. The objective of this work was to delineate and code the hydrographic regions of Southern Patagonia under standardized procedures and new geographic information technologies. The ALOS World 3D model, WorldViewhigh-resolution scenes and QGIS 3.12 free software algorithms were used to carry out automated watershed delineations at various hydrological nesting levels, and subsequent coding and nomenclature. A precise cartographic product was achieved at a scale of1: 25,000 on a territory of 366,357.4 km2. This results in 7,307 hydrographic units distributed in 5 levels, with 14 large hydrographic regions (RH) in the upper level, 46 sub-regions, 249 hydrographic basins, 1,110 sub-basins and 5,888 micro-basins. The cartography achieved improved the resolution and precision of actual available regional products, representing a valuable tool for the sustainable water resources management at different levels of organization and complexity of natural processes. |
| publisher |
Departamento de Geografía. Facultad de Humanidades. Universidad Nacional del Comahue |
| publishDate |
2021 |
| url |
https://revele.uncoma.edu.ar/index.php/geografia/article/view/3264 |
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