![]() It often occurs at industrial sites where historically less control of pollution was in place and where the regulations today demand an environmental solution. This often entails the removal of contaminated soils. Dredge dewatering is the process that happens after dredging, where the sediment is removed from underwater land. Dredging can be done by dredge cutters and dredge vacuum equipment. Remedial dredging is the term used to describe projects where the removal of the material is being carried out purely for environmental reasons, to improve the quality of the site in some way. Dredging is a way to recover resources from the bottom of a sea, river, lake, or any other body of water that has depth and presence of moving water. Once a dredging operation has been completed, maintaining the site or port is of great importance to ensure that the initial investment remains intact and functions as planned. Maintenance dredging is recurrent dredging to maintain or improve existing waterways, even if a number of years pass between consecutive dredging campaigns. Capital dredging is conducted with attention to sustainability and with respect for nature. For instance, the land reclamation for airport platforms and artificial islands, for new ports development, deepening and widening access channels, berthing places, docks, and turning basins are a permanent necessity in order to meet the needs of growing trade and economy. This $19 million research program is co-led by AIMS’ Dr Ross Jones, and brings government, industry and research together to better understand dredging impacts with a view to mitigating environmental risk.Dredging which is carried out in a new location and in material that has never been dredged before, is referred to as a capital project. Our multi-disciplinary research assists regulators, industry and resource managers predict and manage impacts of dredging and its associated activities on local marine ecosystems.ĪIMS is a key contributor to the collaborative Western Australia Marine Science Institution (WAMSI) Dredging Science Node, Australia’s largest single-issue research program. Ports across the world dredge to enlarge and deepen access levels, ensuring safe navigation, competitive advantage by welcoming large vessels, remediation, and flood management. Our researchĪIMS works with the ports and dredging industry and state and federal regulators to fill knowledge gaps related to dredging across Australia’s tropical marine estate. Ports must dredge due to the natural buildup of sand and silt that occurs from rivers, currents, and streams moving around sand and particles. In the simplest sense, data dredging is described as the act of seeking information from a set of data than it actually contains. Critical information requirements were identified in relation to understanding regional sediment transport dynamics and improving our understanding of the responses of organisms to sediment. Alternatively conducted for unethical purposes, data dredging is a data mining process that possibly circumvents the traditional techniques of data mining which may then results in premature conclusions. The report identified several broad impacts, but also highlighted significant gaps in knowledge regarding the impacts of dredging within the Great Barrier Reef World Heritage Area. This uncertainty was highlighted for the Great Barrier Reef in 2015, when a 19-member expert panel, brought together by AIMS and the Great Barrier Reef Marine Park Authority (GBRMPA), published the Dredging Synthesis Report. However, the impacts of dredging activities on tropical marine environments are poorly understood. An AIMS-led science team works alongside a dredging vessel in Cleveland Bay, Townsville.ĭredging proponents and resource managers need to assess potential impacts of dredging activities to inform the design of port and marine infrastructure, and effectively manage dredging operations to mitigate environmental risk.
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