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Hydrodynamic and sediment measurements in estuaries of Rio de Janeiro State, Brazil: methodology and application

机译：巴西里约热内卢州河口的水动力和沉积物测量：方法和应用

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摘要

Accurate cross-sectional field data on water currents and sediment concentrations, among other variables, are required to understand and describe hydrodynamic, sedimentologic and morphologic processes in estuarine environments. Hence, cross-sectional field measurements have to be simultaneously and continuously obtained, by a well equipped team, during at least one tidal cycle. Unfortunately, Brazilian hydrometric teams are neither well equipped nor numerous. To address this problem, a new method was developed and applied in Estuaries of Rio de Janeiro State: (a) in the Iguacu River estuarine stretch, by a team equipped only with one current meter and conventional sediment samplers, and (b) in the Sao Francisco Channel Estuary, where traditional and modern equipment, such as an Acoustic Doppler Current Profiler - ADCP was used. This method is also applicable for measuring hydrodynamic and sediment phenomena in non-permanent open channels during high-flow events (e.g. during floods).
机译：为了了解和描述河口环境中的水动力，沉积和形态过程，需要有关水流和沉积物浓度以及其他变量的准确横截面数据。因此，装备精良的团队必须在至少一个潮汐周期内同时连续地获得横截面测量结果。不幸的是，巴西水文测量团队既没有精良的装备，也没有很多。为了解决这个问题，里约热内卢州河口开发并采用了一种新方法：（a）在伊瓜苏河口河段，仅配备一个电流表和常规沉积物采样器的团队，以及（b）在伊瓜苏河口。圣弗朗西斯科海峡河口，使用传统和现代设备，例如声学多普勒电流剖面仪-ADCP。此方法还适用于在高流量事件期间（例如洪水期间）测量非永久性明渠中的水动力和泥沙现象。

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