Marine Geoscience Data System
AT15-54 Bathymetry:Phase, Sidescan
IMI30 sidescan and phase bathymetry data (version 4, with sidescan intensity adjustments), Guayamas Basin, Gulf of California, Atlantis cruise AT15-54 (2009)
Towed IMI-30 sidescan and phase bathymetry most-evolved processed data (version 4) for the Guayamas Basin, Gulf of California, collected in 2009 during Atlantis cruise AT15-54 (investigator Dan Lizarralde). The port-side array was flooded during days-of-year 299 and 300 resulting in lower sidescan intensity values. In this set of data files, sidescan intensity values for those days, plus the following two days, have been adjusted during processing to improve consistency. File name extension = -dascs. These data files contain the same corrected towfish navigation as the precursor "dasc" files and were generated by the Hawaii Mapping Research Group (HMRG) and are in the HMRG Bathymetry/Sidescan (BS) format. The data files were acquired as part of the project called Off-Axis Sills of Guaymas Basin: Implications for Thermogenic-Carbon Flux of a Sedimented Rift Basin, with funding provided by NSF grant OCE07-51901.
Device Info
Sonar:Sidescan
UH:HMRG:IMI30
Platform
IMI30 (Sled)
Awards
Quality
4
The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).

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