{"help": "https://uatweb.datansw.links.com.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"author": "Central Coast Council", "author_email": null, "contact_info": "False", "contact_point": "ask@centralcoast.nsw.gov.au", "creator_user_id": "4709c2ae-f4fb-4ac9-9b4c-a53c668db28a", "data_state": "inactive", "id": "9405c91c-c254-427e-bafe-64654ca6093f", "isopen": false, "jurisdiction": "New South Wales Government", "license_id": "lsba", "license_title": "Licence Specified by Agency", "maintainer": null, "maintainer_email": null, "metadata_created": "2022-02-02T22:36:25.524027", "metadata_modified": "2025-12-17T02:43:27.899391", "name": "fdp-gosford-city-council-review-of-lagoon-entrance-modelling-for-flood-studies-report", "notes": "Separate Flood studies have been undertaken for four coastal lagoons in the Gosford area, that is, Avoca, Cockrone, Terrigal and Wamberal Lagoons.\r\n\r\nDifferent analytical approaches have been used for Avoca-Cockrone and Terrigal-Wamberal Lagoons. The physical processes involved in the break-out of the lagoons through the beach are complex. Thus, there is a potential for the different analytical processes to produce significantly different results.\r\n\r\nFor this study, separate MIKE-11 models were established for Terrigal-Wamberal Lagoons. These models were calibrated against the documented openings of August and September 1993.\r\n\r\nMIKE-11 models have been previously established for Avoca and Cockrone Lagoons as part of the Flood Studies.\r\n\r\nThe Avoca Lagoon hydraulic model established for the flood study was modified to remove the source of numerical noise which resulted in the over-estimation of the volume of water discharged to the ocean during the opening calibration event. The re-calibration did not alter the parameters for initial breakout of the lagoon.\r\n\r\nThe amendment of channel lengths in the Avoca model was also undertaken to remove a minor over-estimation of storage. The revised hydraulic model produced an estimated one percent AEP design flood level 20mm lower than that obtained in the flood study. This variation in estimated flood levels is not considered significant.\r\n\r\nIt is noted that the critical duration storm (that is, the design storm that produces the greatest water level in the lagoon) was the 9 hour storm for each lagoon.\r\n\r\nThe design flood level estimates for the one percent AEP flood in Terrigal Lagoon and Wamberal Lagoon determined by the review hydraulic model were within 30mm of the flood study estimates. This can be considered to provide independent verification of the flood study estimates.", "num_resources": 1, "num_tags": 6, "organization": {"id": "8ff6f883-d0d3-4e87-8e29-3e93c586b913", "name": "central-coast-council", "title": "Central Coast Council", "type": "organization", "description": "Central Coast Council is responsible for the sixth largest urban area in Australia. Our Council area is 1681 square kilometres, which makes us far bigger geographically than Canberra.\r\n\r\nThe most recent projected population of the Central Coast by 2036 is 415,050. That\u2019s a 23% increase in population, of approximately 80,000 people. 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The function also includes the zoning of land for a variety of purposes (residential, commercial, agricultural, mining, native title, parks and gardens, etc.) and the siting of major projects such as the Darling Harbour Authority. \r\n\r\nThe term also covers the management of resources such as water, soil and forests with the aim of ensuring that exploitation and use are balanced by policies and practices aimed at sustaining and preserving the resource for future generations.", "display_name": "Land and Resource Management", "id": "a160173c-b6d2-4696-9da9-3d3f71242672", "image_display_url": "https://uatweb.datansw.links.com.au/data/uploads/group/2025-02-21-012512.274219nswgpictogramlinesurveyorblue01.png", "name": "land-and-resource-management", "title": "Land and Resource Management"}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2025-12-17T02:43:27.939933", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "format": "", "hash": "", "id": "093782ce-2d59-4dd5-b9ae-70e96e30216d", "last_modified": null, "metadata_modified": "2025-12-17T02:43:27.908935", "mimetype": null, "mimetype_inner": null, "name": "Gosford City Council - Review of Lagoon Entrance Modelling for Flood Studies", "package_id": "9405c91c-c254-427e-bafe-64654ca6093f", "position": 0, "resource_type": null, "size": null, "state": "active", "tracking_summary": {"total": 0, "recent": 0}, "url": "https://uatweb.fdp.links.com.au/dataset/bbf5e666-9259-4cb7-a81a-c384d216d050/resource/9316cdda-eed5-4e4c-b7ec-a73370cc3e23", "url_type": null}], "tags": [{"display_name": "Avoca Lagoon", "id": "4d2540a6-9bec-4a7d-b48a-60d38fc86287", "name": "Avoca Lagoon", "state": "active", "vocabulary_id": null}, {"display_name": "Cockrone Lagoon", "id": "426c35ec-ba42-48cb-8ea1-da8b7152f946", "name": "Cockrone Lagoon", "state": "active", "vocabulary_id": null}, {"display_name": "Gosford", "id": "fb70c6df-efe5-4f1a-a5a3-9ddcfe7594a0", "name": "Gosford", "state": "active", "vocabulary_id": null}, {"display_name": "Terrigal Lagoon", "id": "1332b7f5-2e26-4a8b-ba53-bed46de4d608", "name": "Terrigal Lagoon", "state": "active", "vocabulary_id": null}, {"display_name": "Wamberal Lagoon", "id": "2b6c396a-5ce8-4111-a20e-96988035529b", "name": "Wamberal Lagoon", "state": "active", "vocabulary_id": null}, {"display_name": "hydraulic model", "id": "677b7fb9-3abd-4741-8855-7a364a72eac6", "name": "hydraulic model", "state": "active", "vocabulary_id": null}], "relationships_as_subject": [], "relationships_as_object": [], "likes": 0, "tracking_summary": {"total": 0, "recent": 0}}}