Modelo conceptual agregado de transporte de sedimentos para cuencas de montaña en Antioquia- Colombia
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| Format: | Artículo científico |
| Language: | es |
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Universidad Nacional de Colombia
2016
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| _version_ | 1876440573656694784 |
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| author | Santiago Cataño-Álvarez |
| author_facet | Santiago Cataño-Álvarez |
| contents | Modelo conceptual agregado de transporte de sedimentos para cuencas de montaña en Antioquia- Colombia Santiago Cataño-Álvarez Jaime Ignacio Vélez-Upegui Ciencias de la Tierra bed load gravel rivers sediment yield alluvial rivers hillslope erosion An aggregated model to estimate mean denudation rates of tropical mountain basins with limited data is presented, which is calibrated for Antioquia (Colombia); based on the transport equation of Engelund-Hansen. Two complementary approaches are purposed: (1) alluvial river reach model, dependent on discharge, slope and hydraulic geometry and (2) hillslope model dependent on discharge minus base flow, slope, drainage density and flow convergence degree. Both models are closed with a regression for the Shields parameter, depending on sediment yield (t/km2/yr) and an erodibility factor, which is considered robust due to the diversity of scale, morphology and weather of the 23 basins analyzed. Both model approaches predicts inside a +/- 50% margin of error the sediment yields of 70% of the basins, those with less peculiarities; correcting it with a bed load portion, additional to the suspended transport measured, analytically estimated and proved with field data. 2016 artículo científico 0120-3630 https://www.redalyc.org/articulo.oa?id=169543502005 es http://www.redalyc.org/revista.oa?id=1695 Boletín de Ciencias de la Tierra application/pdf Universidad Nacional de Colombia Boletín de Ciencias de la Tierra (Colombia) Num.39 |
| format | Artículo científico |
| id | redalyc_169543502005 |
| institution | Redalyc |
| language | es |
| publishDate | 2016 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Modelo conceptual agregado de transporte de sedimentos para cuencas de montaña en Antioquia- Colombia Santiago Cataño-Álvarez Ciencias de la Tierra bed load gravel rivers sediment yield alluvial rivers hillslope erosion Modelo conceptual agregado de transporte de sedimentos para cuencas de montaña en Antioquia- Colombia Santiago Cataño-Álvarez Jaime Ignacio Vélez-Upegui Ciencias de la Tierra bed load gravel rivers sediment yield alluvial rivers hillslope erosion An aggregated model to estimate mean denudation rates of tropical mountain basins with limited data is presented, which is calibrated for Antioquia (Colombia); based on the transport equation of Engelund-Hansen. Two complementary approaches are purposed: (1) alluvial river reach model, dependent on discharge, slope and hydraulic geometry and (2) hillslope model dependent on discharge minus base flow, slope, drainage density and flow convergence degree. Both models are closed with a regression for the Shields parameter, depending on sediment yield (t/km2/yr) and an erodibility factor, which is considered robust due to the diversity of scale, morphology and weather of the 23 basins analyzed. Both model approaches predicts inside a +/- 50% margin of error the sediment yields of 70% of the basins, those with less peculiarities; correcting it with a bed load portion, additional to the suspended transport measured, analytically estimated and proved with field data. 2016 artículo científico 0120-3630 https://www.redalyc.org/articulo.oa?id=169543502005 es http://www.redalyc.org/revista.oa?id=1695 Boletín de Ciencias de la Tierra application/pdf Universidad Nacional de Colombia Boletín de Ciencias de la Tierra (Colombia) Num.39 |
| title | Modelo conceptual agregado de transporte de sedimentos para cuencas de montaña en Antioquia- Colombia |
| topic | Ciencias de la Tierra bed load gravel rivers sediment yield alluvial rivers hillslope erosion |
| url | https://www.redalyc.org/articulo.oa?id=169543502005 |