{"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": "metadata@aad.gov.au", "creator_user_id": "c2fbbe4a-4ba0-4945-808b-67454605a4cf", "duplicate_score": 1, "geospatial_topic": [], "id": "b561dd1f-f289-4796-b387-bc5f6dad5d59", "isopen": false, "language": "eng", "license_id": "notspecified", "license_title": "notspecified", "maintainer": null, "maintainer_email": null, "metadata_created": "2025-06-23T08:51:44.406308", "metadata_modified": "2025-06-23T08:51:44.406315", "name": "hammer-plate-seismic-on-the-shackleton-ice-shelf-2023-24", "notes": "Raw active source seismic data collected using the hammer and plate method at two sites on the margin of the Shackleton Ice shelf, close to the Denman Glacier Tongue. The data were collected in conjunction with radar data (metadata record) to optimally locate a hot water drilled borehole by providing a measure of the ice shelf thickness and the depth to the ocean floor beneath the ice shelf.\nThe survey involved laying out an array of 48 geophones along a line 470 m long with geophones spaced every 10m. The geophones were pushed into the snow surface to the same level. The source of seismic energy is simply a thick plastic plate struck by a sledgehammer which is located at the survey line mid-point. Two point measurements were collected, HWD_01 and HWD_02.\nHWD_01\nDate:16/12/2023\nTiming: 1300 - 1700\nLocation: Shackleton Ice Shelf close to the Denman Glacier margin\nCoordinates: -66.230357, 98.735936\nTeam: Sarah Thompson, Katie Miles, Nick Morgan\nWeather: Some high cloud, low wind, good visibility\nSite notes: Very soft snow.\nEquipment: 48 channel Geometrics Geode Seismograph communicating with a laptop via ethernet cable using Geometrics Seismodule Controller Software Version 11.1.69.0 (Geometrics Inc., 2014).\nSampling interval: 62.5 microseconds\nWindow length: 2 seconds \nSurvey layout: 2 x 235 m cables (10 m spacing), geophones all set into surface by pushing into the snow. \nBearing of seismic line: 266 degrees \nGeophones: 1-24 to East and 24-28 to West of centre point\nShot point: Midpoint of survey line. \nSurvey collected in two halves due to software issues, ~20 hammer blows per half, all hammer blows carried out by Nick Morgan.\nFiles included\n*.dat - raw data files each containing seismic record from single shot\nGeophones 1-24: 1000.dat \u2013 1021.dat\nGeophones 25-48: 1022.dat \u2013 1042.dat\nHWD_02 - \nDate: 26/12/2023\nTiming: 1530 - 1800\nLocation: Shackleton Ice Shelf close to the Denman Glacier margin\nCoordinates: -66.232110, 98.738019\nTeam: Sarah Thompson, Katie Miles, Madi Rosevear, Nick Morgan\nWeather: Some high cloud, low wind, good visibility\nSite notes: Very soft snow.\nEquipment: 48 channel Geometrics Geode Seismograph communicating with a laptop via ethernet cable using Geometrics Seismodule Controller Software Version 11.1.69.0 (Geometrics Inc., 2014).\nSampling interval: 62.5 micro seconds\nWindow length: 2 seconds \nSurvey layout: 2 x 235 m cables (10 m spacing), geophones all set into surface by pushing into the snow. \nBearing of seismic line: 296 degrees \nGeophones: 1-24 to East and 24-28 to West of midpoint\nShot point: Midpoint of survey line. \nSurvey collected in two halves due to software issues, 20 hammer blows per half, all hammer blows carried out by Nick Morgan.\nFiles included\n*.dat - raw data files each containing seismic record from single shot\nGeophones 1-24: 1000.dat \u2013 1001.dat\nGeophones 25-48: 2000.dat \u2013 2018.dat and 2020.dat - 2021.dat", "num_resources": 4, "num_tags": 15, "organization": {"id": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "name": "australian-ocean-data-network", "title": "Australian Ocean Data Network", "type": "organization", "description": "Harvester for Australian Ocean Data Network", "image_url": "", "created": "2025-06-23T12:29:10.320926", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://catalogue.aodn.org.au", "href": "https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/hammer-plate-seismic-on-the-shackleton-ice-shelf-2023-24", "title": "Australian Oceans Data Network"}, "owner_org": "0143757a-86ab-43e4-bba6-4a3a2a02b6c4", "private": false, "promotion_level": 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