Marine Geoscience Data System
HLY1302 Seismic:Active:Subbottom
Raw CHIRP towed sub-bottom data from the Beaufort Sea, Healy cruise HLY1302 (2013, investigators Lloyd Keigwin and Neal Driscoll)
Raw seismic reflection sub-bottom data collected with a towed Edgetech 512i CHIRP sub-bottom profiler from Scripps Institution of Oceanography. The data files are in SEG-Y format and contain real-time GPS navigation in the header. The CHIRP towfish included a pressure sensor, allowing the depth of the towfish to be taken into account. As a result, the two-way travel time in the raw CHIRP data is referenced from the sea surface not the towfish. The data set was collected in 2013 in the Beaufort Sea during Healy cruise HLY1302 (investigators Lloyd Keigwin and Neal Driscoll) as part of the project titled "Collaborative Research: Testing the Northern Route for Younger Dryas Meltwater". Funding was provided by NSF awards OPP12-04045, OPP12-03944 and PLR12-04112.
Device Info
EdgeTech:3200-XS, SB-512i
Healy (Sled)
Data have not been processed or modified since acquisition (e.g. Realtime navigation or sonar data, raw images etc.).

Data Files

Acquisition Information

Data Citation Information

ISO/XML Metadata