| Description |
The U.S. Geological Survey (USGS) Coastal and Marine Hazards and Resources Program has actively collected geophysical and sedimentological data in the northern Gulf of America (Gulf of Mexico) for several decades, including shallow subsurface data in the form of high-resolution seismic reflection profiles (HRSP). Prior to the mid-1990s most HRSP data were collected in analog format as paper rolls of continuous profiles up to 25 meters long. As part of the National Geological and Geophysical Data Preservation Program (NGGDPP, https://www.usgs.gov/programs/national-geological-and-geophysical-data-preservation-program) scientists from the USGS St. Petersburg Coastal and Marine Science Center converted analog paper records to digital format using a large-format continuous scanner. The scanned image files were subsequently processed to fix distortions and crop out blank spaces prior to exporting them as industry standard Society of Exploration Geophysicists data exchange (SEG-Y) formatted files. This data release serves as an archive of HRSP profiles annotated with header information, converted SEG-Y files, navigation data, cruise track line Tagged Image File (.TIFF) files, and associated reports. The HRSP data was collected between August 11 and August 14, 1992, using an EG&G Uniboom acoustic system, onboard research vessel (R/V) ERDA 1. The data was collected from Sabine Lake, through Sabine Pass, and adjacent nearshore Gulf waters. Data conversion methods are described in USGS Data Series 1047 (Bosse and others, 2017). Following SPCMSC data management protocols, this survey was assigned a USGS field activity number (FAN), 1992-300-FA (alternative FAN, ERDA92-3). Additional survey and data details are available of the Coastal and Marine Geoscience Data System (CMGDS) at https://cmgds.marine.usgs.gov/services/activity.php?fan=1992-300-FA. [More]
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