Dataset description: Data series 856 segy

Chirp 424 data agc SEGY
Keywordsseismic reflection methods, sub-bottom profiling, marine geophysics
Data typesSub Bottom Profiler
FormatSEG-Y;
Amount2.94 GB

Location of materials and files

Physical mediaStudebaker/A256/3rd shelf/2012book/12BIM03tab/
Public fileshttps://doi.org/10.3133/ds856
Supporting documentation or data
Digital locationhttp://pubs.usgs.gov/ds/856/html/ds856_logs.html
Metadatahttps://cmgds.marine.usgs.gov/metadata/spcmsc/ds-856.xml

Activities and equipment

ActivityEquipment
12BIM03Chirp 424
The EdgeTech 3100-P Portable Sub-Bottom Profiling System is a low cost portable sub-bottom profiler system. It uses Full Spectrum (“chirp”) pulses to create high definition image slices of sub-bottom structure below the bottom. It can be used in rivers, lakes, ponds, and in the ocean. The EdgeTech SB-424 towfish has a frequency range from 4 - 24 kHz. This towfish uses special designed transmitters with low Q- wide band characteristics best suited for “chirp” transmissions. Two multi element line array hydro-phones are installed in the tow vehicle to reduce acoustic scattering from the sides. This results in a narrower across/along track beam pattern.