Avaliação do transporte de carga sedimentar no médio rio Araguaia
| Autor: | Thiago Morato Carvalho |
|---|---|
| Jazyk: | portugalština |
| Rok vydání: | 2009 |
| Předmět: | |
| Zdroj: | Geosul, Vol 24, Iss 47, Pp 147-160 (2009) |
| Druh dokumentu: | article |
| ISSN: | 0103-3964 2177-5230 |
| DOI: | 10.5007/2177-5230.2009v24n47p147 |
| Popis: | The study estimates the bed load sediment in the middle Araguaia River, through the height and dunes daily displacement. The studied region is located between the mouth of the Crixás-Açú River and the Bananal Island, Goiás. The dunes migrated at the rate of 7 m/day, the average water velocity was 1.25 m/sec, corresponding to a total transport of 2195.60 ton of bed load/day. Two methods were compared in order to verify possible sources of error, the Van Rijn one showed a difference of 1414 tons less then the Struckrath method, difference of 0,06% in the estimated bed load between both methods. Results were compared with the bed load of the Araguaia River in the region of Aruanã. |
| Databáze: | Directory of Open Access Journals |
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