{"help": "https://data.gov.au/data/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": 2, "geospatial_topic": [], "id": "98aab13b-9e17-47a1-9a02-17ca9975943f", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-10-16T17:13:12.819829", "metadata_modified": "2026-03-31T05:35:27.575352", "name": "p5026-georgetown-airborne-gravity-survey-2024", "notes": "The Georgetown airborne electromagnetic survey of Northern Queensland was flown between August 14th to 7th November 2024. Airborne gravity data were acquired as an ancillary dataset to the primary airborne electromagnetic (AEM) and magnetic datasets using the NxT\u2122 system, a laser ring gyro strapdown inertial measurement unit (IMU) gravimeter. New Resolution Geophysics Pty. Ltd. (NRG) was commissioned for data acquisition and processing, whilst Geoscience Australia undertook the project management, contract management and quality control on behalf of the Geological Survey of Queensland. The survey was funded through the Queensland Resource Industry Development Plan (QIRDP). \n\n\n\nThe survey area was centered on longitude 143\u00b0 30\u2019 E and latitude 18\u00b0 15\u2019 S to the east of Croydon. A total of 59 production flights were flown for a combined total of 11,529.4 line kilometres of data and acquired on 2000 m line spacing at 70 m nominal terrain clearance. Quality control was performed by Geoscience Australia, with a QC report is included here.\n\n\n\nThe main purpose of the survey was to investigate the feasibility of acquiring gravity data as a secondary dataset for exploration purposes. In addition, the presence of multiple different overlapping gravity datasets would allow direct comparison of different acquisition systems and parameters.\n\n\n\nThe located data, gridded data and quality control reports are contained within this record. The data will also be released by the Geological Survey of Queensland and can be found at:\n\nhttps://geoscience.data.qld.gov.au/data/gravity/gv106922 .\n\n\n\nSurvey Name: Georgetown airborne gravity survey, 2024\n\nDatasets Acquired: Gravity\n\nGeoscience Australia Project Number: P5026\n\nAcquisition Start Date: 14/08/2024\n\nAcquisition End Date: 07/11/2024\n\nFlight line spacing: 2000 m\n\nFlight line direction: East-West (090-270)\n\nTotal distance flown: 11,529.4 line km\n\nNominal terrain clearance: 70 m\n\nBlocks: 1\n\nData Acquisition: New Resolution Geophysics Pty. Ltd.\n\nProject Management: Geoscience Australia\n\nQuality Control: Geoscience Australia\n\nDataset Ownership: Geological Survey of Queensland and Geoscience Australia\n\n\n\nIncluded in this release:\n\n1. Point-located Data - Survey Data and Repeat Lines\n\nASCII-column data in ASEG-GDF format with accompanying description and definition files.\n\n\u2022 Vertical gravity data including the various corrections\n\n\u2022 Re-sampled free-air and complete Bouguer corrected vertical gravity grids, filtered with multiple 2D low-pass filters - 3,200, 3,800, 4,000 and 5,000 m half-wavelength\n\n\u2022 Terrain corrections\n\n\u2022 Digital terrain model\n\n\n\n\n\n2. Grids\n\nGridded data in ERMapper (.ers) format (GDA2020/MGA zone 54):\n\n\u2022 Free air with a downline 2.8-kilometer half wavelength Kalman filter (Free Air Anomaly 2800.ers)\n\n\u2022 Leveled and Micro levelled Free air with a downline 2.8-kilometer half wavelength Kalman filter (Levelled Micro levelled Free Air Anomaly 2800.ers)\n\n\u2022 Free air with a 3.2-kilometer half wavelength grid filter (Free Air Anomaly 3200.ers)\n\n\u2022 Free air with a 3.8-kilometer half wavelength grid filter (Free Air Anomaly 3800.ers)\n\n\u2022 Free air with a 4-kilometer half wavelength grid filter (Free Air Anomaly 4000.ers)\n\n\u2022 Free air with a 5-kilometer half wavelength grid filter (Free Air Anomaly 5000.ers)\n\n\u2022 Bouguer Anomaly with a 3.2-kilometer half wavelength grid filter (Bouguer Anomaly 3200.ers)\n\n\u2022 Bouguer Anomaly with a 3.8-kilometer half wavelength grid filter (Bouguer Anomaly 3800.ers)\n\n\u2022 Bouguer Anomaly with a 4-kilometer half wavelength grid filter (Bouguer Anomaly 4000.ers)\n\n\u2022 Bouguer Anomaly with a 5-kilometer half wavelength grid filter (Bouguer Anomaly 5000.ers)\n\n\u2022 Digital terrain model (Digital Terrain Model.ers)\n\n\u2022 Complete Bouguer and Terrain Correction 1.0 g.cm\u00b3 (Terrain Correction 1.0.ers)\n\n\u2022 Complete Bouguer and Terrain Correction 2.67 g.cm\u00b3 (Terrain Correction 2.67.ers)\n\n\n\n3. Reports\n\n\u2022 Contractor's Data Acquisition and Processing Report\n\n\u2022 Quality Control Report", "num_resources": 3, "num_tags": 11, "organization": {"id": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "name": "geoscience-australia-data", "title": "Geoscience Australia Data", "type": "organization", "description": "Harvester for Geoscience Australia Data", "image_url": "", "created": "2025-06-23T12:29:08.024111", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://ecat.ga.gov.au", "href": "https://ecat.ga.gov.au/geonetwork/srv/eng/csw/dataset/p5026-georgetown-airborne-gravity-survey-2024", "title": "Geoscience Australia"}, "owner_org": "91f054ec-d0c3-4d42-a89a-5daa2c7a6818", "private": false, "promotion_level": "0", "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[142.0, -17.28], [144.5, -17.28], [144.5, -18.31], [142.0, -18.31], [142.0, -17.28]]]}", "spatial_coverage": "{\"type\": \"Polygon\", \"coordinates\": [[[142.0, -17.28], [144.5, -17.28], [144.5, -18.31], [142.0, -18.31], [142.0, -17.28]]]}", "state": "active", "temporal_coverage_from": "2024-08-14 00:00:00", "temporal_coverage_to": "2024-11-07 00:00:00", "title": "P5026 Georgetown Airborne Gravity Survey 2024", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "harvest_object_id", "value": "c059b6a5-1b33-439a-81ee-75317403f3a8"}, {"key": "harvest_source_id", "value": "00080910-39e7-408f-882c-e6e1eb6baadb"}, {"key": "harvest_source_title", "value": "Geoscience Australia"}], "resources": [{"cache_last_updated": null, "cache_url": null, "created": "2026-03-31T05:35:27.602495", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Download Grids (zip) [6.0 MB]", "format": "ZIP", "hash": "", "id": "42984def-272b-4895-8859-1a8cf8144701", "last_modified": null, "metadata_modified": "2026-03-31T05:35:27.580805", "mimetype": 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