{"accessLevel": "public", "bureauCode": ["010:12"], "contactPoint": {"@type": "vcard:Contact", "fn": "Twichell, Dave", "hasEmail": "mailto:dtwichell@usgs.gov"}, "description": "This CD-ROM contains digital high resolution seismic-reflection data collected during the USGS GYRE 97006 cruise. The coverage is the offshore Louisana continental slope, Gulf of Mexico. The seismic-reflection data are stored as IBM 4 bit interger SEG-Y format that can be read and manipulated by most seismic-processing software. Much of the information specific to the data are contained in the headers of the SEG-Y format files. The file system format is ISO 9660 which can be read with DOS, Unix, and MAC operating systems with the appropriate CD-ROM driver \nsoftware installed. This directory contains the processed (using Promax 7.2) and unprossesd (RAW) GI air gun data collected on the GYRE 97006 cruise. These data were collected using a Seismic Systems Inc. generated \ninjected (GI) air gun source. On this cruise the GI gun was configured with two 105 cu. in. chambers, a total of 210 cu. in. The GI gun works by using one chamber for a primary pulse and the second chamber injects a pulse near the maximum expansion of the primary pulse. This results in a dampening effect on the collapse of the primary bubble pulse. The data were logged on an Intel based PC computer (Mudseis system). The data are \ntwo-channel (two traces per shot).", "distribution": [{"@type": "dcat:Distribution", "accessURL": "https://pubs.usgs.gov/of/1999/of99-449/disc1/nav/", "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.7217f3c2-ece9-4b06-838b-d00dd646863f.xml", "format": "XML", "mediaType": "text/xml", "title": "Original Metadata"}], "identifier": "http://datainventory.doi.gov/id/dataset/USGS_7217f3c2-ece9-4b06-838b-d00dd646863f", "keyword": ["GI Air Gun", "Gulf of Mexico", "ISO 9660 CD-ROM", "LA", "Louisiana", "R/V GYRE", "SEG-Y", "Seismic Systems Inc.", "USGS:7217f3c2-ece9-4b06-838b-d00dd646863f", "continental slope", "geoscientificInformation", "image collections", "marine geology", "marine geophysics", "navigational data", "oceans", "seismic reflection", "seismic reflection methods", "sub-bottom profiling"], "modified": "2024-08-06T00:00:00Z", "publisher": {"@type": "org:Organization", "name": "U.S. Geological Survey"}, "spatial": "-92.833333, 26.25, -91.916667, 27.5", "theme": ["geospatial"], "title": "Seismic Reflection Results from the Gyre 1997 Cruise at the Bryant Canyon of the Louisiana Gulf Coast"}