{"help": "https://data.gov.au/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"archived": false, "author_email": null, "contact_point": "clientservices@ga.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 1, "geospatial_topic": [], "id": "7e9dcf73-2f65-49ff-a970-d40906fcf31f", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2026-01-11T05:44:51.476545", "metadata_modified": "2026-01-11T05:44:51.476553", "name": "a-new-high-resolution-depth-model-for-the-terre-adalie-and-george-v-shelf-and-margin-east-antar1", "notes": "Abstract: The Collaborative East Antarctic Marine Census (CEAMARC) surveys to the Terre Ad\u00c3\u00a9lie and George V shelf and margin highlight the requirement for a revised high resolution depth model that can be used as a spatial tool for improving physical models of the region. We have combined available shiptrack and multibeam bathymetry, coastline\nand land topographic data to develop a new high-resolution depth model, called GVdem. GVdem spans an area 138\u00c2\u00b0E to 148\u00c2\u00b0E longitude and 63\u00c2\u00b0S to 69\u00c2\u00b0S latitude, with a choice of three ESRI grids with cell pixel sizes: 15 arcsec, 9 arcsec and 3.6 arcsec. The revised depth model is an improvement over previously available regional-scale grids, and highlights seabed physiographic detail not previously observed for this part of East Antarctica. 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