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R/V Parke Snavely (source vessel) navigation and survey geometry from USGS field activity 2021-619-FA collected in April of 2021 offshore Santa Cruz, CA

Published by U.S. Geological Survey | Department of the Interior | Metadata Last Checked: January 27, 2026 | Last Modified: 2023-05-16T00:00:00Z
Navigation data were recorded for the R/V Parke Snavely (RVPS; source vessel) during USGS field activity 2021-619-FA in April of 2021 off the coast of Santa Cruz, California. Data were collected as the RVPS towed a marine sparker sound source along seven depth site transects in water depths ranging between 25 and 600 meters. The R/V San Lorenzo (RVSL; receive vessel) maintained a nearly stationary position at the midpoint along the seven depth site transects and recorded sound with a calibrated hydrophone. Navigation data and survey geometry information are presented in csv format as well as a trackline shapefile.

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