A field study of the confluence between Negro and Solimões Rivers. Part 1: Hydrodynamics and sediment transport
A field study of the confluence between Negro and Solimões Rivers. Part 1: Hydrodynamics and sediment transport
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DOI：
10.1016/j.crte.2017.09.015
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发表时间：
2017-12
影响因子：
1.4
通讯作者：
C. Gualtieri;N. Filizola;Marco de Oliveira;A. Santos;Marco Ianniruberto
中科院分区：
文献类型：
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作者：
C. Gualtieri;N. Filizola;Marco de Oliveira;A. Santos;Marco Ianniruberto
汇流是河流系统的一个共同特征，位于汇流流线和分离流的潜在混合处。尼格罗河和索利姆内斯河的汇合处是地球上最大的河流之一，对它的研究可能会为大型汇合动力学和过程提供一些一般性的见解。最近利用声学多普勒流速剖面、水质取样和高分辨率地震数据，在低流量和高流量条件下对汇流进行了调查。首先，这项研究深入了解了汇流的基本水动力学参数以及影响沉积物输运的参数的特征。其次，分析结果表明，共同的水动力学特征，注意到在以前的合流研究在这里观察。最后，确定了低流量和相对高流量条件下，从Solimeres到亚马逊海峡黑人一侧的动量转移之间的一些差异。
Confluences are a common feature of riverine systems, where are located converging flow streamlines and potential mixing of separate flows. The confluence of the Negro and Solimões Rivers ranks among the largest on Earth and its study may provide some general insights into large confluence dynamics and processes. An investigation was recently conducted about that confluence in both low and high-flow conditions using acoustic Doppler velocity profiling (ADCP), water quality sampling and high-resolution seismic data. First, the study gained insights into the characterization of the basic hydrodynamics parameters about the confluence as well as of those affecting sediments transport. Second, the analysis of the results showed that common hydrodynamic features noted in previous confluence studies were herein observed. Finally, some differences between low-flow and relatively high-flow conditions about the transfer of momentum from the Solimões to the Negro side of the Amazon Channel were identified.