High-resolution multichannel seismic-reflection data acquired in the northern Gulf of Mexico, 1998-99

Online link https://geo-nsdi.er.usgs.gov/metadata/open-file/02-368/metadata.faq.html
Description This report consists of two-dimensional marine seismic reflection profile data from the northern Gulf of Mexico. These data were acquired in 1998 and 1999 with the Research Vessels Tommy Munro (M1-98-GM) and Gyre (G1-99-GM). The data are available in bi
Originators Hart, Patrick E.; Cooper, Alan K.; and Twichell, David C.
Publication U.S. Geological Survey Open-File Report 02-368

Related topics

Overview of attributes

Binary data file:  Each profile is available as a binary file in Society of Exploration
Geophysicists SEG-Y format.  A SEG-Y file consists of 1) a 3200-byte file identification
record of EBCDIC encoded general information; 2) a 400-byte binary record with information
such as sample rate and record length specific to the data set; and 3) multiple records,
one seismic reflection trace per record.  Each trace record is preceded by a 240-byte
"trace header" containing information such as trace number and acquisition day and time
specific to each trace.  The trace data are represented as a time series of unitless
16-bit integer or 32-bit real numbers proportional to the pressure recorded at each
hydrophone.  The SEG-Y file is useful only if you have access to specialized software
designed to process and display seismic reflection data.

Barry, K.M., Cavers, D.A., and Kneale, C.W., 1975, Recommended standards for digital tape formats: Geophysics, v. 40, n. 2, p. 344 - 352. Also available online at: http://www.seg.org/Portals/0/SEG/News%20and%20Resources/Technical%20Standards/seg_y_rev1.pdf