Pathfinder: The use of multibeam echo-sounding in quantifying and monitoring water quality and sediment fluxes in aquatic environments

探路者：使用多波束回声探测来量化和监测水生环境中的水质和沉积物通量

• 批准号: NE/J011428/1
• 负责人: Daniel Parsons
• 金额: $ 1.71万
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2011
• 资助国家: 英国
• 起止时间: 2011 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FJ011428%2F1
• 关键词: Pathfinder; use; multibeam; echo; sounding

All natural water flows on the Earth's surface transport sediment (including muds, sands and silts), both along their beds and also suspended within the flow. Sediment transport and deposition result in a wide scale of features from the smallest-scale sand ripples to the largest river deltas and submarine sediment fans. Additionally, understanding the transport of sediment is vital in assessing the fate of pollutant particles in many environments and in a range of industrial applications, such as the erosion and transport of sediment around engineering structures, for instance around bridges and sub-sea installations and during dredging operations. In order to better understand the transport and deposition of sediment in the natural environment, and thus feed this into environmental management strategies (and the meeting of the water framework directive), we require methods that will allow us to measure the shape, or morphology, of the bed (sea bed, lake bed, river bed) surface and measure the transport of sediment. Recent years have seen astonishing progress in the development of multibeam echo sounding (MBES) systems, which use an array of echo-sounder beams to measure the form of the surface at the base of water flows (such as the bed of oceans or rivers) at a very high accuracy (down to millimeters in vertical precision). These instruments use the reflection of sound from the bed to measure the depth of the fluid, and hence construct detailed maps of the bed sediment surface. These instruments allow us to view the bottom of rivers and oceans as if all the water had been slowly drained, and the depositional form left untouched and perfectly displayed. This technique has generated a step change in how we can view the Earth's surface, which depositional forms are present and how we may interpret them and such high-resolution surveys also allow us to look at the change in shape at different time periods, and thus assess changing sediment volumes in time, in response to both human impacts and natural changes.Under a recently completed NERC Partnership Grant the applicants, with Project Partners RESON, have developed a methodology using MBES for concurrently quantifying bathymetry and the concentrations and fluxes of suspended sediment within the water column, using information contained in the acoustic returns derived from the passage of the acoustic sound beams through the water column. We have developed a suite of processing codes and software that conducts the analysis of these vast data sets and have assembled a set of calibrations for converting the acoustic returns into quantifiable sediment concentrations. The goal of this follow on fund project will be to examine and define the full potential for the commercial exploitation of the technique, most likely through the integration of our codes and routines within IVS3D's Fledermaus, one of the world leaders in the processing and display of 3D time-varying datasets. IVS3D are project partners in this application and the full route to market and commercial exploitation analysis will be conducted by TechnologyfromIdeas (included in the project as partners), who are an independent technology transfer consultancy contracted by the University of Leeds Business and Enterprise Centre. They will provide full market assessments and reports related to the potential commercialisation of the technology.

所有天然水流都沿着床，沿着床，也悬浮在流动中。沉积物的运输和沉积导致从最小的沙纹涟漪到最大的河流三角洲和海底沉积物迷。此外，了解沉积物的运输对于评估许多环境和一系列工业应用中的污染物颗粒的命运至关重要，例如围绕工程结构的沉积物侵蚀和运输，例如围绕桥梁和海上安装以及疏anding操作。为了更好地了解自然环境中沉积物的运输和沉积，从而将其融入了环境管理策略（以及水框架指令的会议）中，我们需要的方法可以使我们能够测量床（海床，湖床，河床）表面的形状或形态，并测量沉积物的运输。近年来，多冰回声声音（MBES）系统的发展取得了惊人的进步，这些系统使用一系列回声声音梁来测量在水流底部（例如海洋或河流的床）以非常高的精度（在垂直精确度中毫米计）的表面形式（例如海洋或河流的床）。这些仪器使用床上声音的反射来测量流体的深度，因此构造了床表面的详细地图。这些仪器使我们能够查看河流和海洋的底部，就好像所有水都被缓慢排干一样，沉积形式不受影响并完美地显示。这项技术已经在如何看待地球表面，存在哪些沉积形式以及我们如何解释它们以及这种高分辨率的调查以及高分辨率的调查也使我们能够在不同时间段查看形状的变化，从而对时间变化的变化，从而对人类的影响和自然的变化进行评估，该方法是在不同时期的变化。使用从水柱的声音通过的声音回报中包含的信息，在水柱内的悬浮沉积物的浓度和通量通过水柱。我们已经开发了一套处理代码和软件，该码对这些庞大的数据集进行了分析，并组装了一组校准，以将声学回报转换为可量化的沉积物浓度。此之后的基金项目的目的是检查和定义对该技术进行商业开发的全部潜力，这很可能是通过在IVS3D的Fledermaus中整合我们的代码和例程，这是3D时间变化数据集中的世界领导者之一。 IVS3D是本申请中的项目合作伙伴，并且将由TechnologyFromideas（在项目中以合作伙伴的合作伙伴中包括）进行商业开发分析，这是由利兹大学商业和企业中心合同的独立技术转移咨询公司。他们将提供与技术潜在商业化有关的全面市场评估和报告。