Shipboard Geophysical Group - Scripps Institution of Oceanography

Hydrophone Streamers

· Sercel Small Diameter Marine Seismic Streamer - Originally built by AMG, this streamer has produced excellent records at fairly high speeds since it was put in service in 1993. With the addition of a new active section in September '98, this streamer is now available with four channels, of 50 m. group length each. Each channel has 42 hydrophones at 1 m. spacing (3 parallel-wired sub-groups of 14 hydrophones wired in series). The system also includes a stretch section ahead of the actives and a tail section behind, and up to three weighted sections for depth control.

· Teledyne Single Channel Streamers - These streamers represent the last generation, having been acquired through the 1980's. While not producing records of the quality of the "AMG", they still work and may be brought on expeditions as backup gear.

- Last updated 5 November 1999 -