Storage and Remobilization of Suspended Sediment in the Lower Amazon River of Brazil
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- Robert H. Meade
- U.S. Geological Survey, Denver, Colorado 80225
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- Thomas Dunne
- Department of Geological Sciences, University of Washington, Seattle 98195
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- Jeffrey E. Richey
- College of Ocean and Fisheries Science and Quaternary Research Center, University of Washington
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- Umberto de M. Santos
- Instituto Nacional de Pesquisas da Amazônia, 69,000 Manaus, Brazil
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- Eneas Salati
- Centro de Energia Nuclear na Agricultura, Universidade de Sāo Paolo, 13,400 Piracicaba, Brazil
書誌事項
- 公開日
- 1985-04-26
- DOI
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- 10.1126/science.228.4698.488
- 公開者
- American Association for the Advancement of Science (AAAS)
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説明
<jats:p> In the lower Amazon River, suspended sediment is stored during rising stages of the river and resuspended during falling river stages. The storage and resuspension in the reach are related to the mean slope of the flood wave on the river surface; this slope is smaller during rising river stages than during falling stages. The pattern of storage and resuspension damps out the extreme values of high and low sediment discharge and tends to keep them near the mean value between 3.0 × 10 <jats:sup>6</jats:sup> and 3.5 × 10 <jats:sup>6</jats:sup> metric tons per day. Mean annual discharge of suspended sediment in the lower Amazon is between 1.1 × 10 <jats:sup>9</jats:sup> and 1.3 × 10 <jats:sup>9</jats:sup> metric tons per year. </jats:p>
収録刊行物
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- Science
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Science 228 (4698), 488-490, 1985-04-26
American Association for the Advancement of Science (AAAS)
