Dataset description: Peak marine sparker amplitude data ones coll and pressure vs. offset plots

Peak amplitude values recorded at source and receive hydrophones during a two-vessel marine sparker seismic survey conducted by the U.S. Geological Survey (USGS) in April of 2021 off the coast of Santa Cruz, California (USGS field activity 2021-619-FA) are presented. On the source vessel (R/V Parke Snavely, RVPS), near-field data were recorded using a broadband spherical reference Reson TC4034 hydrophone positioned 1-meter below the sparker source (either a SIG ELP790 or an Applied Acoustics Delta sparker) along seven depth site transects ranging between 25 and 600 meters. On the nearly stationary receive vessel (R/V San Lorenzo, RVSL), omnidirectional Cetacean Research CR3 hydrophones were positioned between 10- and 20-meters water depth below the vessel to record the far-field signal. Data are presented in csv format, accompanied by combined scatter plots per depth site and mean-filtered curve plots for visualization purposes.

Version	1
Keywords	sub-bottom profiling, geospatial datasets, marine geophysics
Data types	Sparker
Format	comma-delimited text
Amount	1.0 MB

Contacts

Contact	Alicia F Balster-gee PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://doi.org/10.5066/P9EHITBI
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/DataReleases/CMGDS_DR_tool/DR_P9EHITBI/2021-619-FA_peakamplitude_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
2021-619-FA	Calibrated single channel phones Calibrated single channel seismic receiver phones