The use of particle tracking in sediment transport studies: a review
The use of particle tracking in sediment transport studies: a review
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颗粒追踪在沉积物迁移研究中的应用：综述
DOI：
10.1144/gsl.sp.2007.274.01.09
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
D. Evans
中科院分区：
文献类型：
--
作者：
K. Black;Samantha N. Athey;P. Wilson;D. Evans
摘要新的欧洲环境立法，如贝类和贝类指令，以及最近的水框架指令，正在推动新的和新鲜的方法来沉积物管理。越来越多地要求区域当局、环境保护机构和顾问对水生系统中的沉积物通量进行全面的、全系统的评估。越来越多的，而且有必要，有必要描述沉积物（和污染物）的动态变化和空间分布的规模，而不是在单点的地方传输路径。“颗粒追踪”，或也称为“颗粒”或“沉积物追踪”，提供了一种实用的方法，用于评估各种沉积物在更广泛的时间和空间尺度上的迁移路径，适用于粉砂、砂、颗粒、卵石和卵石。虽然不是一项新技术，但由于新的、创新的制造和测量技术的出现，地质学家、水文学家和海洋学家对颗粒跟踪的兴趣和应用又重新抬头。这些都克服了以前的限制所提出的方法，也提供了一个基础，以前不存在的淤泥跟踪。本文的目的是提供一个概述的粒子跟踪方法在现代背景下，进行跟踪实验的实用性的偏见。我们提出了一个详细的总结进行跟踪研究，包括对合成示踪剂的耐受限度和适当的采样策略的重要性的评估的因素和考虑。此外，我们强调了该方法的主要技术限制。我们总结的历史背景，关于使用的颗粒跟踪方法概述了主导地位的研究泥沙输运和泥沙跟踪研究的缺乏，并提请注意一些潜在的应用领域，这种创新的方法。
Abstract New European environmental legislation such as the Shellfish and Habitats Directives, together with the more recent Water Framework Directive, are driving new and fresh approaches to sediment management. Regional authorities, environment protection agencies and consultants are increasingly being required to adopt a holistic, system-wide appreciation of sediment flux in aquatic systems. Increasingly, and necessarily, there is a need to describe sediment (and contaminant) transport pathways on dynamically variable and spatially distributed scales rather than at single point localities. ‘Particle tracking’, or as it is also known ‘particle’ or ‘sediment tracing’, providing certain assumptions are satisfied, offers a practical methodology for the assessment of transport pathways of a variety of sediments across wider temporal and spatial scales, and is available for silts, sands, granules, pebbles and cobbles. Although not a new technique, particle tracking has experienced a resurgence of interest and application by geologists, hydrologists and oceanographers principally as a result of the arrival of new, innovative manufacturing and measurement technologies. These have overcome previous limitations presented by the method, and have also provided a foundation for silt tracking that previously did not exist. The purpose of this paper is to provide an overview of the particle tracking methodology in the modern context, with a bias towards the practicalities of conducting a tracking experiment. We present a detailed summary of the factors and considerations involved in conducting tracking studies, including an assessment of tolerance limits on synthetic tracers and the importance of appropriate sampling strategies. In addition, we highlight the principal technical limitations of the method. We summarise the historical background regarding the use of the particle tracking method outlining the dominance of studies on sand transport and the paucity of silt tracking studies, and draw attention to some of the potential areas of application of this innovative approach.