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An evaluation of the use of a multibeam echo-sounder for observations crossMark of suspended sediment

机译：使用多波束回声测深观测悬浮泥沙的评估

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摘要

The theory relating the acoustic backscatter from suspended sediments to the mass concentration of particles has been developed over several decades and is now routinely applied to provide measurements for commercial and scientific applications. Single-beam instruments, such as acoustic Doppler current profilers (ADCP), permit acquisition of backscatter along one-dimensional spatial profiles. However, commercially available multibeam echo-sounders (MBES), designed principally for bathymetric surveying, now offer water column backscatter data-logging across their two-dimensional interrogation swaths, enabling suspended sediment to be instantaneously imaged across much larger volumes. This paper addresses issues relating to the processing of suspended sediment backscatter recorded with an MBES system, drawing on the theory developed for single-beam instruments. A processing methodology is developed and the performance limits estimated from an analysis of the data acquired in the near field of a Teledyne-RESON MBES in a controlled test facility. Results derived from the application of the methodology to field-data collected with an MBES and an ADCP in the Missouri River, USA, are presented that demonstrate the potential gains in spatial and temporal resolution and near-bed imaging than can be achieved by the use of an MBES system. (C) 2017 Elsevier Ltd. All rights reserved.
机译：将悬浮沉积物的声反向散射与颗粒质量浓度相关的理论已经发展了几十年，现在已被常规应用以提供用于商业和科学应用的测量。单束仪器，例如声学多普勒电流剖面仪（ADCP），允许沿一维空间剖面采集反向散射。但是，主要用于水深测量的商业化多波束回声测深仪（MBES）现在可在其二维询问范围内提供水柱反向散射数据记录功能，从而可以对更大体积的悬浮沉积物进行即时成像。本文利用为单波束仪器开发的理论，解决与MBES系统记录的悬浮沉积物反向散射处理有关的问题。开发了一种处理方法，并通过对在受控测试机构中Teledyne-RESON MBES的近场中采集的数据进行分析来估计性能极限。提出了将方法学应用于在美国密苏里河由MBES和ADCP采集的野外数据的结果，这些结果证明了在空间和时间分辨率以及近地层成像方面的潜在收益超过了使用MBES系统。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Applied Acoustics》 |2017年第11期|81-90|共10页
  • 作者

    Simmons Stephen M.; Parsons Daniel R.; Best James L.; Oberg Kevin A.; Czuba Jonathan A.; Keevil Gareth M.;

  • 作者单位

    Univ Hull, Sch Environm Sci, Cottingham Rd, Kingston Upon Hull HU6 7RX, N Humberside, England;

    Univ Hull, Sch Environm Sci, Cottingham Rd, Kingston Upon Hull HU6 7RX, N Humberside, England;

    Univ Illinois, Dept Geol, Mech Sci & Engn, 605 West Springfield Ave, Champaign, IL 61820 USA|Univ Illinois, Dept Geog, Mech Sci & Engn, 605 West Springfield Ave, Champaign, IL 61820 USA|Univ Illinois, Dept GIS, Mech Sci & Engn, 605 West Springfield Ave, Champaign, IL 61820 USA|Univ Illinois, Ven Te Chow Hydrosyst Lab, 605 West Springfield Ave, Champaign, IL 61820 USA;

    US Geol Survey, Off Surface Water, 1201 W Univ Ave,Suite 100, Urbana, IL 61801 USA;

    Indiana Univ, Dept Earth & Atmospher Sci, 1001 E 10th St, Bloomington, IN 47405 USA;

    Univ Leeds, Sch Earth & Environm, Leeds LS2 9JT, W Yorkshire, England;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Multibeam; Suspended sediment;

    机译：多光束;悬浮泥沙;

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