Sea-tide effects on flows in the lower reaches of the Amazon River
| Autor: | Naziano Filizola, Jacques Callède, Jean Marie Fritsch, Pascal Kosuth, V. Guimaraes, Alain Laraque, Jean-Loup Guyot, Patrick Seyler |
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| Přispěvatelé: | Institut de Recherche pour le Développement (IRD), Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), ANA BRAZILIA BRA, Partenaires IRSTEA, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA) |
| Jazyk: | angličtina |
| Rok vydání: | 2009 |
| Předmět: |
010504 meteorology & atmospheric sciences
0207 environmental engineering hydrology AMAZON RIVER 02 engineering and technology Tidal Waves 01 natural sciences sediment transport TIDAL EFFECTS HYDROLOGY 020701 environmental engineering Sea level 0105 earth and related environmental sciences Water Science and Technology Hydrology AMAZONE FLEUVE Discharge Amazon rainforest Water storage Amazon River Tidal irrigation tidal effects Sedimentation BRAZIL 6. Clean water Oceanography AMAZONE 13. Climate action [SDE]Environmental Sciences Environmental science Sediment transport SEDIMENT TRANSPORT Brazil |
| Zdroj: | Hydrological Processes Hydrological Processes, Wiley, 2009, 23 (22), pp.3141-3150. ⟨10.1002/hyp.7387⟩ |
| ISSN: | 0885-6087 1099-1085 |
| DOI: | 10.1002/hyp.7387⟩ |
| Popis: | The physical influence of sea tides on the lower reaches of the Amazon River can be identified more than 1000 km upstream from the sea. Analysis of upstream tidal wave propagation on the Amazon River contributes to the understanding of the hydrodynamics of the lower reaches and to the quantification of the influence of sea level on sedimentation rates. Continuous over-the-year recording of water levels has been undertaken at eight locations along the lower reaches of the Amazon River and flow measurement campaigns have been organized for different river discharge rates (100 000 m3 s−1, 190 000 m3 s−1 and 250 000 m3 s−1) and sea-tide amplitudes (2–3·5 m). Damping, time-delay and deformation of the tidal wave signals, depending on water regimes and distances from the sea, have been analyzed. The physical processes of wave propagation and cyclic water storage and release have been investigated both through data analysis and the application of mathematical hydrodynamic models. The impact of tidal pulses on sediment transport to the sea has been assessed. Copyright © 2009 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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