Archive of digital chirp subbottom profile data collected during USGS cruise 14BIM05 offshore of Breton Island, Louisiana, August 2014

• Main Authors: Arnell S. Forde, James G. Flocks, Dana S. Wiese, Jake J. Fredericks
• Format: Dataset
• Language: unknown
• Published: USGS Science Data Catalog 2015
• Subjects: geoscientificinformation; oceans; Geology; Coastal information; Marine; Subbottom profile; Seismic reflection; Chirp; Society of Exploration Geophysicists; SEG Y; Barrier Island Mapping; BIM; 14BIM05; distributions; substrate; seismic reflection; marine geophysics; seismic reflection methods; sub-bottom profiling; United States of America; Louisiana; Breton Island; Gulf of Mexico; Barrier Island
• Online Access: https://search.dataone.org/view/0e681169-445d-4b50-a7d4-0b2b40a8d0b1

In August of 2014, the U.S. Geological Survey, in cooperation with the U.S. Fish and Wildlife Service (USFWS), conducted a geophysical survey offshore of Breton Island, Louisiana to investigate the geologic controls on barrier island framework and long-term sediment transport. Additional details related to this activity can be found by searching the USGS's Coastal and Marine Geoscience Data System (CMGDS), for field activity 2014-317-FA (also known as 14BIM05). This report serves as an archive of unprocessed digital chirp subbottom data, trackline maps, navigation files, GIS information, and formal FGDC metadata. Gained digital images of the seismic profiles are also provided. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG Y revision 0 format (Barry and others, 1975) and may be downloaded and processed with commercial or public domain software such as Seismic Unix (SU). Example SU processing scripts and USGS software for viewing the SEG Y files (Zihlman, 1992) are also provided. These data are available for viewing using GeoMapApp (http://www.geomapapp.org/) and Virtual Ocean (http://www.virtualocean.org/) multi-platform open source software. In addition, the SEG Y files can also be downloaded from the USGS Coastal and Marine Geoscience Data System (http://cmgds.marine.usgs.gov).