Abstract Quantifying suspended-sediment transport is critical for a variety of disciplines related to the management of water resources. However, the number of gauging stations and monitoring networks in most rivers around the world is insufficient to improve understanding of river dynamics and support water resource management decisions. This is mainly due to the high operational costs and intensive labor involved in traditional sediment measurement techniques, especially in sand bed rivers where coarse material varies spatially in the river cross section. Recently, the acoustic surrogate method has received attention as a potentially accurate surrogate technology for estimating suspended-sediment concentrations. In addition, the acoustic surrogate method, through use of acoustic Doppler current profilers (ADCPs), has the advantage of being able to simultaneously measure the flow velocity field and cross-sectional area when moving-boat measurements are performed. In spite of the important advances made in the implementation of this technique, there are no widely-available, free tools for processing the ADCP acoustic signal cross section measurements which include options to extrapolate velocity and sediment in unmeasured ADCP zones and develop calibrations with physical samples. This paper presents a new software called Acoustic Sediment Estimation Toolbox (ASET), which enables the user to develop a calibration between the acoustic signal collected with a down-looking Teledyne RD Instruments ADCP and sediment concentrations determined using traditional sediment sampling techniques. Moreover, ASET software uses dynamic ADCP measurements to estimate the total suspended-sediment transport through a river cross section. The theoretical framework and data processing routines applied by each module in ASET are presented. Finally, a comparison is made between the results obtained by ASET and by traditional methodologies for computing suspended-sediment transport in a large river system (Parana River, Argentina).

中文翻译：

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声学沉积物估计工具箱 (ASET)：用于校准和处理 TRDI ADCP 数据以计算沙质河流中悬浮沉积物传输的软件包

摘要 量化悬浮泥沙输运对于与水资源管理相关的各种学科至关重要。然而，世界上大多数河流的测量站和监测网络的数量不足以提高对河流动态的了解并支持水资源管理决策。这主要是由于传统沉积物测量技术的高运营成本和密集的劳动力，特别是在沙床河流中，河流横截面的粗物质在空间上不同。最近，声学替代方法作为估计悬浮沉积物浓度的潜在准确替代技术而受到关注。此外，声学替代方法，通过使用声学多普勒电流剖面仪 (ADCP)，具有在执行移动船测量时能够同时测量流速场和横截面积的优点。尽管在实施这项技术方面取得了重要进展，但没有广泛可用的免费工具来处理 ADCP 声学信号横截面测量，其中包括外推未测量 ADCP 区域中的速度和沉积物的选项，并使用物理样本进行校准. 本文介绍了一种称为声学沉积物估计工具箱 (ASET) 的新软件，它使用户能够在使用向下看的 Teledyne RD Instruments ADCP 收集的声学信号与使用传统沉积物采样技术确定的沉积物浓度之间进行校准。而且，ASET 软件使用动态 ADCP 测量来估计通过河流横截面的总悬浮沉积物运输。介绍了ASET中各模块应用的理论框架和数据处理程序。最后，对 ASET 获得的结果与计算大型河流系统（阿根廷巴拉那河）中悬浮泥沙输移的传统方法获得的结果进行了比较。