{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author": "Lowe, Ryan, Dr", "author_email": null, "contact_point": "Ryan.Lowe@uwa.edu.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 2, "geospatial_topic": [], "id": "61c3708e-72b6-4f4b-b86f-4c95fcafefec", "isopen": false, "license_id": "cc-by-sa", "license_title": "Creative Commons Attribution Share-Alike 3.0 Australia", "license_url": "http://creativecommons.org/licenses/by-sa/3.0/au/", "maintainer": "Maintainer Not Specified", "maintainer_email": "info@data.wa.gov.au", "metadata_created": "2025-06-23T04:31:27.319535", "metadata_modified": "2025-09-14T07:29:35.666706", "name": "wamsi-2-dredging-node-3-1-2-review-of-transport-processes_eb34", "notes": "A common feature of many coastal systems is the presence of large and complex bottom roughness (or canopies) on the seafloor that are formed by a wide range of different marine communities, including seagrasses, coral reef organisms and mangroves. These canopies impose substantial drag forces on the coastal flows generated by waves and currents, resulting in substantial modifications to the mean and turbulent flow structure adjacent to the seafloor. As a consequence, the transport of both natural and dredging-derived sediments (which are closely coupled to the hydrodynamics), including rates of sediment deposition and suspension, can be dramatically altered in these environments.\nPresently, mechanistic models of sediment transport in the presence of submerged canopies are severely lacking, with only a limited number of mostly qualitative studies providing any insight into these dynamics. New observations of sediment transport within environments such as coral reefs and seagrass meadows are thus critically needed to 1) provide the missing quantitative insight needed to better understand these processes\n2) incorporate these dynamics into new predictive sediment transport formulations applicable to these environments, and \n3) finally embed these dynamics in process-based numerical models that can eventually be applied by coastal engineers to enable predictions. Without this fundamental information, it is, for example, presently impossible to predict the fate and impact of sediment dredging plumes on these often sensitive environments with any degree of confidence.\nIn this review we summarize the current state of knowledge and gaps in the various components required to predict sediment transport in coral reef and vegetated canopies, including:\n\u2022 The hydrodynamic interactions of currents and waves with submerged canopies, including the influence on bed stresses (Section 2)\n\u2022 The traditional approaches and models used to predict nearbed sediment transport in the coastal ocean (Section 3)\n\u2022 Existing observations of sediment transport within aquatic vegetation and over coral reefs (Section 4)\n\u2022 Measurement techniques and challenges for quantifying and monitoring nearbed sediment fluxes (Section 5), and\n\u2022 Prospects for upscaling these dynamics with numerical models to improve predictions of the transport and fate of natural and dredging-derived sediments in these environments (Section 6)", "num_resources": 1, "num_tags": 0, "organization": {"id": "f6583a73-4b2b-41a3-9f96-e7ce02005fee", "name": "western-australian-marine-science-institution-western-australia-government", "title": "Western Australian Marine Science Institution", "type": "organization", "description": "The Western Australian Marine Science Institution (WAMSI) is a leading Australian marine research organisation.\r\n \r\nIts structure is like no other because it is a collaboration of State, Federal, industry and academic entities cooperating to create benchmark research and independent, quality scientific information. \r\n \r\nIt carries out research into climate change, biodiversity, the iconic Ningaloo Marine Park, sustainable fisheries, biotechnology and oceanography, and has overseen the development of a marine bioresources library that will store thousands of marine samples collected by researchers.\r\n \r\nWestern Australia\u2019s marine ecosystems are facing unprecedented pressure from an increasing number of uses such as oil and gas extraction, tourism, aquaculture and large coastal developments.\r\n \r\nGovernments, industry and the community face bigger, more frequent and more rapid decisions relating to marine and coastal planning. Enhancing their ability to do so needs greater strategic understanding of our ocean environment.\r\n \r\nWAMSI's 15 partners have built on a strong marine science capacity with more than 250 scientists working on 85 research projects.", "image_url": "", "created": "2025-06-23T13:20:27.494424", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.data.wa.gov.au", "href": "https://catalogue.data.wa.gov.au/dataset/wamsi-2-dredging-node-3-1-2-review-of-transport-processes_eb34", "title": "Western Australia Government"}, "original_name": "wamsi-2-dredging-node-3-1-2-review-of-transport-processes_eb34", "owner_org": "f6583a73-4b2b-41a3-9f96-e7ce02005fee", "private": false, "promotion_level": "0", "remote_last_updated": "2022-05-25 15:03:08.303073", "spatial": "{\"type\": \"MultiPolygon\", \"coordinates\": [[[ [129, -26.8], [129, -13.5], [112.88, -13.5], [112.88, -26.8]]]]}", "spatial_coverage": "{\"type\": \"MultiPolygon\", \"coordinates\": [[[ [129, -26.8], [129, -13.5], [112.88, -13.5], [112.88, -26.8]]]]}", "state": "active", "temporal_coverage_from": "2018-05-03 06:57:04.915774", "title": "WAMSI 2 - Dredging Node - 3.1.2 - Review of Transport Processes", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "harvest_object_id", "value": "ed5b7aef-9bbe-414f-b2cf-25a5854bc744"}, {"key": "harvest_source_id", "value": "1aa77fd2-6ef6-4687-ab94-0cc2f998cd41"}, {"key": "harvest_source_title", "value": "Western Australia Government"}], "resources": [{"access_level": "open", "cache_last_updated": null, "cache_url": null, "created": "2018-06-14T02:56:10.696184", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "", "format": "PDF", "hash": "", "id": "6cd2f32e-75f9-4030-8d3a-7f46868d0b23", "last_modified": "2018-06-14T02:56:10.636362", "metadata_modified": "2025-06-23T04:31:27.316935", "mimetype": null, "mimetype_inner": null, "name": "Final report", "package_id": "61c3708e-72b6-4f4b-b86f-4c95fcafefec", "position": 0, "resource_type": null, "size": null, "state": "active", "url": "https://catalogue.data.wa.gov.au/dataset/61c3708e-72b6-4f4b-b86f-4c95fcafefec/resource/6cd2f32e-75f9-4030-8d3a-7f46868d0b23/download/sediment-transport-processes-wamsi-dsn-project-312-lowe-ghisalberti-2016final.pdf", "url_type": null, "zip_extract": false}], "tags": [], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}