Archive of digitized analog boomer seismic reflection data collected along the Louisiana Shelf, 1982–1984

Online link https://cmgds.marine.usgs.gov/catalog/spcmsc/Lacoss_metadata.faq.html
Description The U.S. Geological Survey (USGS) Coastal and Marine Geology Program has actively collected geophysical and sedimentological data in the northern 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 (https://datapreservation.usgs.gov/), and in collaboration with the Bureau of Ocean Energy Management, Marine Minerals Program, scientists at the USGS St. Petersburg Coastal and Marine Science Center are converting the analog paper records to digital format using a large-format continuous scanner. The image files created by scanning were further processed to fix distortions and crop out blank spaces to create industry standard Society of Exploration Geophysicists date exchange (SEG-Y) format. This data release serves as an archive of HRSP profiles annotated with header information, converted Society of Exploration Geophysicists SEG-Y files, navigation data, and cruise trackline shapefiles. The HRSP data were collected using a Huntec boomer seismic system onboard the Research Vessels (R/V) R.J. Russell and Carancahua. While on the R/V R.J. Russel, geophysical surveys were conducted at various times between December 1982 and July 1984 with the data being acquired from waterbodies surrounding Isles Dernieres (Lacoss 82-2, 83-3 and 83-4), within Terrebonne and Caillou Bay (82-2), and offshore of Port Fourchon, Louisiana (84-5). While on the R/V Carancahua, geophysical surveys were collected between August and September 1982 off the coast of Holly Beach, Louisiana (82-3). Data collection and processing methods are described in USGS Data Series 1047. [More]
Originators Bosse, Stephen T.; Flocks, James G.; and Forde, Arnell S.
Field activities 1982-300-FA

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Trackline map of all boomer seismic reflection data collected during USGS Cruises 01SCC01 and 01SCC02. These data were collected in Timbalier Bay and in the Gulf of Mexico offshore of East Timbalier Island, Louisiana, in June, July, and August of 2001. This map is set in geographic coordinates, NAD83 (unprojected) and was created at a scale of 1:200,000. It was created using ESRI GIS software ArcView 3.2 and 8.1, exported to Adobe Illustrator for further editing, and saved for the web in JPEG format. The USGS is not the originator of all layers used in creating the maps presented in this archive. The roads layer is a Louisiana Oil Spill Coordinator's Office (LOSCO) Environmental Baseline Inventory Dataset 'Louisiana Highway System from LDOTD (Louisiana Department of Transportation) source data, Geographic NAD83, LOSCO (1999) [primary roads].' The rivers layer is a LOSCO data set derived from ESRI/Geographic Data Technology, Inc. (GDT) data that were in turn derived from Bureau of the Census TIGER/Line files. The waterbodies layer is also a LOSCO data set derived from ESRI/GDT data.
Trackline map of all boomer seismic reflection data collected during USGS Cruises 01SCC01 and 01SCC02. These data were collected in Timbalier Bay and in the Gulf of Mexico offshore of East Timbalier Island, Louisiana, in June, July, and August of 2001. This map is set in geographic coordinates, NAD83 (unprojected) and was created at a scale of 1:200,000. It was created using ESRI GIS software ArcView 3.2 and 8.1, exported to Adobe Illustrator for further editing, and saved for the web in JPEG format. The USGS is not the originator of all layers used in creating the maps presented in this archive. The roads layer is a Louisiana Oil Spill Coordinator's Office (LOSCO) Environmental Baseline Inventory Dataset 'Louisiana Highway System from LDOTD (Louisiana Department of Transportation) source data, Geographic NAD83, LOSCO (1999) [primary roads].' The rivers layer is a LOSCO data set derived from ESRI/Geographic Data Technology, Inc. (GDT) data that were in turn derived from Bureau of the Census TIGER/Line files. The waterbodies layer is also a LOSCO data set derived from ESRI/GDT data.