WAMSI 2 - DREDGING NODE - PROJECT 4.3 Estimating sediment deposition fields around dredging activities

The objective of WAMSI DREDGING SCIENCE NODE Project 4.3 was to better understand the relationship between TSS and the orbital motion of waves using the instrumentation used during the Gorgon dredging program, at multiple sites using the baseline (pre-dredging) data and then during the dredging program. Specifically, the objective was to predict TSS levels based on the orbital velocity of waves and to identify periods where the measured TSS levels are higher than the modelled data predicts and which therefore may indicate turbidity caused by dredging or spoil disposal and which could represent periods of high sediment deposition. The information from the sediment deposition sensor can then be used to verify periods of high(er) sediment deposition..Data is in the form of a report, which is a secured (printable, non-editable), searchable, Portable Document Format (PDF) showing the results of the analyses.西澳海洋科学机构（WAMSI）疏浚科学节点第4.3号项目的目标，是借助高更（Gorgon）疏浚项目所搭载的仪器设备，依托多个采样点位的基线（疏浚前）数据与疏浚作业期间的实测数据，进一步厘清总悬浮固体（Total Suspended Solids, TSS）与波浪轨道运动之间的内在关联。具体而言，该项目旨在基于波浪轨道速度预测总悬浮固体浓度，并识别实测总悬浮固体浓度高于模型预测值的时段——此类时段既可能由疏浚或弃土处置引发浊度升高，也可能对应沉积物沉积速率偏高的阶段。后续可通过沉积物沉积传感器获取的信息，验证高沉积速率（或更高沉积速率）的发生时段。本数据集以报告形式呈现，该报告为受保护的（可打印、不可编辑）可检索式可移植文档格式（Portable Document Format, PDF），内含全部分析结果。