Near-bottom AUV Sentry processed bathymetry images (GeoTIFF format) from the Pythia's Oasis methane seep site
Pythia's Oasis is a methane seep site 60 nautical miles off the coast of Oregon. This site is different from other seep sites. It hosts a discrete orifice that has continually vented low-salinity, hydrocarbon-bearing fluids since 2015 and is still active as of August of 2022. The site was discovered in 2015 during a Regional Cabled Array (RCA) Operations and Maintenance Cruise using hull-mounted sonar on R/V Thompson to detect methane bubble plumes in the water column. In 2019, near-bottom swath bathymetry data were collected using a Reson 7125 multibeam sonar system mounted on AUV Sentry during Pythia's Oasis Cruise AT42-17. Six AUV Sentry sonar surveys were conducted. The data were processed and two bathymetric data sets were produced: One is a 2,600 meter by 2,400 meter composite of data from all AUV dives gridded at 1-meter resolution and the other is a 1,500 meter by 800 meter data set from a low-altitude dive gridded at 0.25 meters. The images presented here are in GeoTIFF raster image format and the resolution is given in the file name. Funding was provided by National Science Foundation award OCE16-58201.
Kelley, Deborah
Investigator
UW
Device Info
Sonar: Multibeam
Reson:SeaBat 7125
Platform
Sentry (AUV)
WHOI:NDSF
Awards
Data DOI
Quality
2
The data have been processed/modified to a level beyond that of basic quality control (e.g. final processed sonar data, photo-mosaics).
Data Files
References
Acquisition Information
Data Citation Information
ISO/XML Metadata
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