{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Kevin J. Cunningham", "hasEmail": "mailto:kcunning@usgs.gov"}, "description": "Methane, nitrogen, oxygen, and carbon dioxide concentrations were collected at two offshore submarine pockmarks, Miami Pockmark and Key Biscayne Pockmark. A series of dives were performed to gather the data using an autonomous underwater vehicle (AUV) with an Underwater Mass Spectrometer (UMS) instrument. The data were collected May 5-8, 2016 using a Bluefin B12 AUV equipped with a UMS and an onboard calibrated Kearfott T-24 Inertial Navigation System (INS) aided by a GPS Wide Area Augmentation System (WAAS), 600 kHz RDI Doppler Velocity Log (DVL) and a Valeport sound velocity meter.", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://doi.org/10.5066/F7H13196", "description": "Landing page for access to the data", "format": "XML", "mediaType": "application/http", "title": "Digital Data"}, {"@type": "dcat:Distribution", "description": "The metadata original format", "downloadURL": "https://data.usgs.gov/datacatalog/metadata/USGS.5aaaacaae4b09e9cadb736d8.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_5aaaacaae4b09e9cadb736d8", "keyword": ["AUV", "Autonomous Underwater Vehicle", "Carbon dioxide", "INS", "Inertial Navigation System", "Key Biscayne Pockmark", "Marine", "Methane", "Miami", "Miami Pockmark", "Nitrogen", "Oxygen", "Pockmark", "R/V Weatherbird II", "Subsea Navigation", "UMS", "USBL Aided", "USGS:5aaaacaae4b09e9cadb736d8", "Ultra-Short Baseline SONAR", "Underwater Mass Spectrometer", "geoscientificInformation", "oceans"], "modified": "2020-11-18T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-80.040744, 25.694862, -79.966415, 25.865661", "theme": ["geospatial"], "title": "Methane, nitrogen, oxygen, and carbon dioxide data for the Miami Pockmark and Key Biscayne Pockmark"}