Metadata: Identification_Information: Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E. Baldwin Originator: Patrick E. Hart Publication_Date: 20220920 Title: Peak marine sparker amplitude data from calibrated source and receive hydrophones collected in April 2021 offshore Santa Cruz, California (USGS field activity 2021-619-FA), and pressure vs. offset plots Geospatial_Data_Presentation_Form: comma-delimited text Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9EHITBI Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Larger_Work_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E. Baldwin Originator: Patrick E. Hart Publication_Date: 2022 Title: Calibrated marine sparker source amplitude decay versus offset offshore Santa Cruz, California Series_Information: Series_Name: data release Issue_Identification: DOI:10.5066/P9EHITBI Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Description: Abstract: 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. Purpose: This two-vessel survey was designed to quantify the decay of sound emitted from the SIG ELP790 minisparker (powered at 700 joules) and from the Applied Acoustics Delta Sparker (powered at 1.0 and 2.4 kilojoules) as a function of distance during marine geophysical surveys. Seven transect sites were surveyed at five different water depths (25, 50, 100, 200, and 600 meters) to compare the effects of water depth on peak sound level. The source vessel (RVPS) towed the sparker sound source as well as a calibrated hydrophone (TC4034) to record the near-field outgoing signal along the transects. The receive vessel (RVSL) maintained a nearly stationary position at the midpoint of each transect and continuously recorded sound with a calibrated hydrophone (CR3101 or CR3102) at depths between 10 and 20 meters, depending on deployed cable length. Supplemental_Information: Additional information about the field activity from which these data were derived is available online at: https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-619-FA Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. Although this Federal Geographic Data Committee-compliant metadata file is intended to document the data set in nonproprietary form, as well as in Esri format, this metadata file may include some Esri-specific terminology. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210419 Ending_Date: 20210428 Currentness_Reference: ground condition at time data were collected Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -122.47431993 East_Bounding_Coordinate: -121.81507587 North_Bounding_Coordinate: 37.09648707 South_Bounding_Coordinate: 36.72920243 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:ae8d4c4f-f7f0-4c65-a193-9620236beb8f Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme_Keyword: location Theme: Theme_Keyword_Thesaurus: Data Categories for Marine Planning Theme_Keyword: Water Column Features Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: marine geophysics Theme_Keyword: sub-bottom profiling Theme_Keyword: geospatial datasets Theme: Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords Theme_Keyword: data processing Theme_Keyword: seismic reflection profiling Theme_Keyword: seismic methods Theme_Keyword: Global Positioning System (GPS) observations Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Hazards and Resources Program Theme_Keyword: CMHRP Theme_Keyword: Pacific Coastal and Marine Science Center Theme_Keyword: PCMSC Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Department of the Interior Theme_Keyword: DOI Theme_Keyword: field activity number 2021-619-FA Theme_Keyword: shapefile Theme_Keyword: seismic navigation Theme_Keyword: seismic reflection Theme_Keyword: sub-bottom profiling Theme_Keyword: marine geophysics Theme_Keyword: SEG-Y traces Theme_Keyword: R/V Parke Snavely Theme_Keyword: R/V San Lorenzo Place: Place_Keyword_Thesaurus: Geographic Names Information System (GNIS) Place_Keyword: Pacific Ocean Place_Keyword: State of California Place_Keyword: Monterey Bay Place_Keyword: Santa Cruz Place: Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS) Place_Keyword: Monterey Canyon Place_Keyword: Soquel Canyon Access_Constraints: None Use_Constraints: USGS-authored or produced data and information are in the public domain from the U.S. Government and are freely redistributable with proper metadata and source attribution. Please recognize and acknowledge the U.S. Geological Survey as the originator of the dataset and in products derived from these data. This information is not intended for navigation purposes. Point_of_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: L200_SIGminisparkerAmplitudeOffestPlots_2021-619-FA.png Browse_Graphic_File_Description: Summary peak amplitude plots for the SIG minisparker operated at 600J at the 200-meter depth site. On the left, the top scatter plot shows the pulses recorded at the hydrophone deployed near the sparker source on the R/V Parke Snavely (source vessel); the bottom scatter plot shows the peak amplitude signal recorded at the hydrophone deployed at the R/V San Lorenzo (receiver vessel). On the right are the 51-trace mean filtered version of the same data. Browse_Graphic_File_Type: PNG Data_Set_Credit: The authors acknowledge our fellow participants of the sparker testing field activity 2021-619-FA (Pete Dal Ferro, Gerry Hatcher, Jared Kluesner, Rachel Marcuson, Jenny McKee, Dan Powers and Rob Wyland) and our team involved in survey planning and execution (Jackson Currie, William Danforth, Jane Denny, Tim Elfers, Dave Foster, Nathan Miller, Eric Moore and Carolyn Ruppel). Native_Data_Set_Environment: On the source vessel (R/V Parke Snavely; RVPS), SEG-Y data were originally recorded as continuous hydrophone waveforms (.wav format) using Tektronix SignalExpress software (v. 2015). Navigational data (raw GGA format) were recorded using an Applanix PosMV Elite (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-ELITE.pdf) positioning system. On the receiver vessel (R/V San Lorenzo; RVSL) SEG-Y data were originally recorded as continuous hydrophone waveforms (.wav format) using SpectraPlus-SC software with a 192 kHz sample rate. Navigational data (raw GGA format) were recorded using a Garmin GPSMAP 4212 (https://www.garmin.com/en-US/p/8114#specs). Depth data were collected with RBR Solo-D depth loggers and using the RBR Ltd. Ruskin utility (v2.7.3.201905031233). Using Anaconda (v. 4.10.1), Python (v.3.7), and Jupyter notebook (v. 6.0.0), the navigation and continuous waveform data were sliced to match shot rate, navigation was matched using the UTC timestamp, SEG-Y header information were populated, and data were output in SEG-Y format. Python tools used include npTDMSb (https://nptdms.readthedocs.io/en/stable/apireference.html#module-nptdms), NumPy (https://numpy.org), ObsPy (https://docs.obspy.org), and PyProj.Geod WGS84 (https://pyproj4.github.io/pyproj/stable/api/geod.html). Shearwater Reveal seismic processing software (2020-03-05 stable build version, https://www.shearwatergeo.com/4/reveal-software) was used to import python notebook output SEG-Y files and convert peak trace amplitude to sound pressure level (SPL), field pressure (p) and peak sound level (SL) using calibrated hydrophone sensitivities for CR3 and Reson TC4034-3 hydrophones and equations 3 and 5 from NUWC-NPT Technical Report 12, 203 24 March 2016 (Crocker and Fratantonio, 2016). These values were output in csv format and plotted in PNG format per depth site in a final python notebook using tools SciPy (https://scipy.org), NumPy (https://numpy.org) and Matplotlib (Matplotlib version3.4.2, https://matplotlib.org/). Cross_Reference: Citation_Information: Originator: Steven E. Crocker Originator: Frank D. Fratantonio Publication_Date: 2016 Title: Characteristics of Sound Emitted During High-Resolution Marine Geophysical Surveys Other_Citation_Details: Crocker, S.E. and Fratantonio, F.D., 2016, Characteristics of Sound Emited During High-Resolution Marine Geophysical Surveys: NUWC-NPT Technical Report 12,203, Bureau of Ocean Energy Management 2016-044. Online_Linkage: https://espis.boem.gov/final%20reports/5551.pdf Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The Reson TC4304 hydrophone, a broad band spherical hydrophone that provides uniform omni-directional characteristics between 1Hz and 480kHz (http://www.teledynemarine.com/reson-tc-4034), was calibrated on 2014-01-13 by the manufacturer and measured a sensitivity of -225.4dB. The SIG ELP790 sparker was operated at 700 joules (https://www.marine-seismic-equipments.net/sparker-sound-sources/). The Applied Acoustics Delta Sparker (https://www.subseatechnologies.com/applied-acoustics/sub-bottom-profiling/sound-source-sparker/delta-sparker/) was operated at 1000 joules at the 200-meter depth site and at 2400 joules at the 600-meter depth site. For both sparker sources operated at the stated power levels, the Reson TC3404 hydrophone was positioned properly to record the full spectrum of sound output. Cetacean Research CR3 hydrophones CR3101 and CR3102 have measured sensitivities of -208.2db and -208.6dB, respectively. RBR solo depth loggers have a stated accuracy of +/-0.05 percent full scale (about 1 cm water depth). Logical_Consistency_Report: Quality control was conducted during processing to ensure consistency of SEG-Y hydrophone receiver data recorded aboard the receiver vessel, and of depths recorded by the RBR solo depth loggers. The position of the sound source (data available elsewhere in these data release) is contained in each csv file in the lbsrc_lon and lbsrc_lat columns. The position of the hydrophone receiver aboard the receiver vessel is recorded in the csv rec_lon and rec_lat columns in decimal degrees. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Users are advised to read the rest of the metadata record carefully for additional details. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: An Applanix POS-MV (Position and Orientation System for Marine Vessels) Elite was used to position the source vessel during data collection. The Applanix POS-MV Elite has a stated positional accuracy of 0.5-2 meters (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-ELITE.pdf). A Garmin GPSMAP 4212 Differential Global Positioning System (DGPS; https://www.garmin.com/en-US/p/8114) was used to position the receiver vessel during data collection. The Garmin GPSMAP has a stated accuracy within 5 to 10 meters. Accuracies of final products may be lower due to total propagated uncertainties of the mapping systems, which include position and motion compensation system, navigation, as well as data processing that includes calculating the source layback from the stern of the vessel (20 meters), and PyProj.Geod calculation of offset distance between the sparker source position and the position of the receive hydrophone. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Two-way travel time in milliseconds referenced to sea level is recorded in SEG-Y files. RBR Solo-D depth loggers were mounted with the hydrophones for most of the survey lines to estimate depths with the RBR Ltd. Ruskin utility (v2.7.3.201905031233) via the simplified derivation, where depth in meters = (measured pressure in dbar - atmospheric pressure (set to default 10.1325 dbar)) / (density (set to default 1.0281 g/mL) * 0.980665). The RBR Solo-D units used are rated to 20 meters and RBR Ltd. state that they are accurate to +/- 0.05 percent of full scale (about 1 cm water depth). If this depth information was recorded, it is populated in rec_elev column of the csv files. If this receiver elevation data was not recorded, a NaN value populates the column. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E Baldwin Originator: Patrick E. Hart Publication_Date: 2022 Title: 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 Geospatial_Data_Presentation_Form: comma-delimited text Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Type_of_Source_Media: online data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210419 Ending_Date: 20210428 Source_Currentness_Reference: ground condition at time data were collected Source_Citation_Abbreviation: SrcNav Source_Contribution: Navigation from the source vessel was used to calculated the offset between the sound source and the hydrophone on the receiver vessel Source_Information: Source_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E Baldwin Originator: Patrick E. Hart Publication_Date: 2022 Title: R/V San Lorenzo (receive vessel) navigation and survey geometry from USGS field activity 2021-619-FA collected in April of 2021 offshore Santa Cruz, CA Geospatial_Data_Presentation_Form: comma-delimited text Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Type_of_Source_Media: online data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210419 Ending_Date: 20210428 Source_Currentness_Reference: ground condition at time data were collected Source_Citation_Abbreviation: RecNav Source_Contribution: Navigation from the receiver vessel was used to calculated the offset between the sound source and the hydrophone on the receiver vessel Source_Information: Source_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E Baldwin Originator: Patrick E. Hart Publication_Date: 2022 Title: Marine sparker source SEG-Y seismic data recorded aboard the R/V Parke Snavely during USGS field activity 2021-619-FA offshore Santa Cruz, California in April of 2021 Geospatial_Data_Presentation_Form: SEG-Y seismic data Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Type_of_Source_Media: online data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210419 Ending_Date: 20210428 Source_Currentness_Reference: ground condition at time data were collected Source_Citation_Abbreviation: SrcSegy Source_Contribution: SEG-Y data from the near-field hydrophone on the source vessel were used to calculate peak amplitudes Source_Information: Source_Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E Baldwin Originator: Patrick E. Hart Publication_Date: 2022 Title: Marine sparker SEG-Y seismic data recorded aboard the R/V San Lorenzo using receive hydrophones during USGS field activity 2021-619-FA offshore Santa Cruz, California in April of 2021 Geospatial_Data_Presentation_Form: SEG-Y seismic data Publication_Information: Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, California Publisher: U.S. Geological Survey Online_Linkage: https://doi.org/10.5066/P9EHITBI Type_of_Source_Media: online data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20210419 Ending_Date: 20210428 Source_Currentness_Reference: ground condition at time data were collected Source_Citation_Abbreviation: RecSegy Source_Contribution: SEG-Y data from the hydrophone on the receiver vessel were used to calculate peak amplitudes Process_Step: Process_Description: Aboard the source vessel (R/V Parke Snavely; RVPS), sparker source (either the SIG ELP790 or the Applied Acoustics Delta Sparker) was towed on a 20-meter cable from the stern of the source vessel (R/V Parke Snavely; RVPS) along seven planned survey tracklines in water depths ranging from 25 to 600 meters. The SIG ELP790 sparker was powered at 700 joules at all water depths. The Applied Acoustics Delta Sparker was powered at 1000 joules at the 200-meter depth site and powered at 2.4 kilojoules at the 600-meter depth site. A Reson TC4034 hydrophone and an RBR depth logger were towed on a second cable and positioned in the water just below the sparker to measure the near-field outgoing source signal and depth. Continuous waveform data (TDMS format) from the near-field hydrophone were acquired using SignalExpress software sampling at 192 kHz. A second, receiver vessel (R/V San Lorenzo; RVSL), maintained a nearly stationary position at the midpoint of each trackline and recorded the signal on another hydrophone hanging in the water at mid-vessel. A unique code name was given to each navigation line where PS=the source vessel R/V Parke Snavely; L=line followed by 2- or 3-numerals representing the water depth (the water depth may be followed by an A denoting a planned replicate transect line); S=SIG ELP790 700-joule minisparker source, D10=1.2 kilojoule Delta sparker source, or D24=2.4 kilojoule Delta sparker source; subsequent passes are followed with a, b, c, d, and a numeral as needed. The source and receiver vessels’ navigation data (SrcNav, RecNav) and hydrophone signal data (SrcSegy, RecSegy) are provided elsewhere in these data release. Process_Date: 20210427 Process_Step: Process_Description: Navigational data from both the source and receiver vessels were recorded in raw GGA format. The UTC timestamp, latitude and longitude were extracted using a series of Python notebooks. The layback position of the sparker source was estimated to be 20 meters from the stern of the source vessel based on the length of the cable. The python tool PyProj.Geod WGS84 was used to merge the data frames of the source layback latitude and longitude positions (lbsrc_lat and lbsrc_lon, respectively) and to calculate and assign the offset distance, in meters, between the sparker source and the hydrophone hanging below the receiver vessel for each UTC time sample (utc_dt). To orient the offsets from separate passes relative to each other, a signed offset (signoffet) value was assigned in which the source offset value is positive when the source vessel (RVPS) was northwest of the receiver vessel (RVSL) and negative when the source vessel is southeast of the receiver vessel. Source_Used_Citation_Abbreviation: SrcNav Source_Used_Citation_Abbreviation: RecNav Process_Date: 20210427 Process_Step: Process_Description: SignalExpress software was used to output TDMS float files from the Reson TC4034 hydrophone on the source vessel (RVPS). The python package npTDMSb (https://nptdms.readthedocs.io/en/stable/apireference.html#module-nptdms) was used to read the recorded hydrophone float voltage and write to an ObsPy trace (https://docs.obspy.org). Aboard the receiver vessel (RVSL), SpectraPlus .wav files were output in 16-bit format from the Cetacean Research model CR3 receiver hydrophones. ObsPy and NumPy (https://numpy.org) python packages were used to unscale the 16-bit voltage readings to float format ObsPy traces. For each pass at each depth site, the timing of the electromagnetic spike as the power supply (aboard the source vessel) discharges power to the sparker source relative to the nearest offset shot time was used to shift the continuous waveform start time. For both source and receiver ObsPy traces, a 70-7000Hz bandpass filter was applied. ObsPy traces were sliced from the continuous waveform using the shot timing (record lengths for RVPS SEG-Y are 0.2 seconds and the RVSL SEG-Y are 2 seconds with offset dependent start times written to the Delay Recording time DELRT header in header bytes 109-110), resampled to 16 kHz, and standard SEG-Y headers were written (https://seg.org/Portals/0/SEG/News%20and%20Resources/Technical%20Standards/seg_y_rev1.pdf). The source and receiver vessel navigation, shot times, and RBR hydrophone depths (when recorded) were written to SEG-Y headers. Process_Date: 20220427 Process_Step: Process_Description: SEG-Y data files were imported into Shearwater Reveal seismic software (https://www.shearwatergeo.com/4/reveal-software) where data were viewed for quality control. The peak absolute value amplitude per seismic trace was selected (csv attribute lav) and the time of the sample point was recorded in milliseconds (csv attribute lav_ms). Using equations 3 and 5 from NUWC-NPT Technical Report 12, 203 24 March 2016 (Crocker and Fratantonio, 2016), Sound Pressure Level (SPL), field pressure, and Sound Level (SL) were calculated from the largest absolute value trace amplitudes as well as the calibrated hydrophone sensitivities (CR3101 = -208.2; CR3102 = -208.6; TC4034-3 = -225.4). These values were mean filtered over 51-traces to represent the overall trend of Sound Pressure Level decay as a function of offset distance from the sparker sound source. These data were exported in csv format and merged with the source and receiver navigation, shot times, and RBR hydrophone depths (when recorded). Source_Used_Citation_Abbreviation: SrcSegy Source_Used_Citation_Abbreviation: RecSegy Process_Date: 20220427 Source_Produced_Citation_Abbreviation: SrcPeakAmp Source_Produced_Citation_Abbreviation: RecPeakAmp Process_Step: Process_Description: CSV data were plotted in PNG format per depth site in a final python notebook using tools SciPy (https://scipy.org), NumPy (https://numpy.org) and Matplotlib (https://matplotlib.org). Receiver sound pressure level (csv attribute spllav) was plotted as a function of offset (csv attribute signoffset) and source sound level (sllav) also plotted as a function of offset (signoffset) are plotted in the upper portion of each scatter plot contained in the zip file ‘2021-619-FA_peakamplitude_scatter_plots.zip’. The mean source calculated sound level (referenced to 1-meter distance) was calculated for all passes and source types for each depth site and is noted in the legend as well as the published sound level for each sparker model. A lower scatter plot in the same PNG image displays the receiver sound pressure level measurements with the spherical divergence reference calculated using the mean measured sound level as a function of offset. These same data, 51-trace mean filtered, are plotted in the PNG images contained in the zipfile ‘2021-619-FA_peakamplitude_MeanFilterCurve_plots.zip’ using the mean filtered csv attributes mfspllav and mfsllav, mean-filtered sound pressure level and sound level, respectively. Source_Used_Citation_Abbreviation: SrcPeakAmp Source_Used_Citation_Abbreviation: RecPeakAmp Process_Date: 20220427 Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 46332 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000001 Longitude_Resolution: 0.000001 Geographic_Coordinate_Units: Decimal degrees Geodetic_Model: Horizontal_Datum_Name: WGS 1984 Ellipsoid_Name: WGS 84 Semi-major_Axis: 6378137.0 Denominator_of_Flattening_Ratio: 298.257224 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Local surface Depth_Resolution: 0.1 Depth_Distance_Units: meters Depth_Encoding_Method: Attribute values Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_RVPS_SEGYpeakamplitude_csv.zip Entity_Type_Definition: zip file containing 30 csv summary tables for each SEG-Y recorded with the TC4304 hydrophone aboard the R/V Parke Snavely source vessel. The first line of the csv files is a header line. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: filename Attribute_Definition: Name of navigation line Attribute_Definition_Source: Assigned unique line identifier name Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25_S_a_f2 Enumerated_Domain_Value_Definition: Pass ‘a’ part 2 with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25_S_a_f3 Enumerated_Domain_Value_Definition: Pass ‘a’ part 3 with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25_S_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25A_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the second 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25A_S_a2 Enumerated_Domain_Value_Definition: Pass ‘a2’ (part two of pass a) with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25A_S_a3 Enumerated_Domain_Value_Definition: Pass ‘a3’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L25A_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L50_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L50_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L50A_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A' Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L50A_S_a2 Enumerated_Domain_Value_Definition: Pass ‘a2’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L50A_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_a_f1 Enumerated_Domain_Value_Definition: Pass ‘a’ (part 1) with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_a_f2 Enumerated_Domain_Value_Definition: Pass ‘a’ (part 2) with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_c_f1 Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_c_f2 Enumerated_Domain_Value_Definition: Pass ‘c2’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L100_S_c2 Enumerated_Domain_Value_Definition: Pass ‘c2’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_S_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_D10_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_D10_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_D10_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L200_D10_d Enumerated_Domain_Value_Definition: Pass ‘d’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L600_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L600_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L600_D24_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the Delta sparker source (power 2.4 kilojoules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: PS-L600_D24_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the Delta sparker source (power 2.4 kilojoules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute: Attribute_Label: hpid Attribute_Definition: Hydrophone Identifier Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: model number TC4034 (Reson) Attribute: Attribute_Label: lbsrc_lon Attribute_Definition: longitude of the sparker source layback position from the stern of the source vessel (RVPS) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.360614 Range_Domain_Maximum: -121.897050 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: lbsrc_lat Attribute_Definition: latitude of the sparker source layback position from the stern of the source vessel (RVPS) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.763513 Range_Domain_Maximum: 36.992312 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: rec_lon Attribute_Definition: longitude of the hydrophone at the receiver vessel (RVSL) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.337685 Range_Domain_Maximum: -121.924577 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: rec_lat Attribute_Definition: latitude of the hydrophone at the receiver vessel (RVSL) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.778772 Range_Domain_Maximum: 36.975878 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: signoffset Attribute_Definition: offset distance between the instrument layback position of the sparker source off the stern of the source vessel and the hydrophone receiver positioned below the receiver vessel. Positive values are when the source is northwest of the receiver and negative when the source is southeast of the receiver Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -5356 Range_Domain_Maximum: 4736 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: y Attribute_Definition: Year collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel R/V Parke Snavely Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2021 Range_Domain_Maximum: 2021 Attribute_Units_of_Measure: year collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: jd Attribute_Definition: Julian Day collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel R/V Parke Snavely Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 111 Range_Domain_Maximum: 119 Attribute_Units_of_Measure: Julian day collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: h Attribute_Definition: hour collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel (RVPS) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 20 Attribute_Units_of_Measure: hour of day collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: m Attribute_Definition: minute collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel (RVPS) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: minute of hour collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: s Attribute_Definition: second collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel (RVPS) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: second of minute collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: us Attribute_Definition: microsecond collected Attribute_Definition_Source: time stamp from GGA navigation string from source vessel (RVPS) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 68436 Range_Domain_Maximum: 932070 Attribute_Units_of_Measure: microsecond of second of minute collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: utc_dt Attribute_Definition: Coordinated Universal Time (UTC) Day Time string Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. For example, 2021-04-23 18:31:02.999936+00:00 represents 2021-04-23 as the date collected and 18:31:02.999936+00:00 is the UTC time that the navigation point was taken Attribute: Attribute_Label: rec_elev Attribute_Definition: RVPS hydrophone receiver elevation below sea surface Attribute_Definition_Source: RBR solo depth logger fixed to TC4304 hydrophone receiver. Note that NaN values exist where no depth data was recorded. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -5.60 Range_Domain_Maximum: -0.83 Attribute_Units_of_Measure: depth in meters Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: lav Attribute_Definition: largest absolute value amplitude seismic trace recorded by RVPS hydrophone Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.000109 Range_Domain_Maximum: 0.073863 Attribute_Units_of_Measure: SEG-Y amplitude Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: lav_ms Attribute_Definition: microsecond collected Attribute_Definition_Source: SEG-Y time of largest absolute amplitude seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3.038 Range_Domain_Maximum: 22.195999 Attribute_Units_of_Measure: millisecond Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: spllav Attribute_Definition: sound pressure level largest amplitude value per SEG-Y seismic trace Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 146.167186 Range_Domain_Maximum: 202.768536 Attribute_Units_of_Measure: decibels Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: sllav Attribute_Definition: sound level largest amplitude value Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 156.662893 Range_Domain_Maximum: 221.551818 Attribute_Units_of_Measure: decibels Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: mfspllav Attribute_Definition: 51 trace-mean filtered sound pressure level largest amplitude value per SEG-Y seismic trace (spllav attribute) Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 172.663691 Range_Domain_Maximum: 195.877498 Attribute_Units_of_Measure: decibels Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: mfsllav Attribute_Definition: 51 trace-mean filtered sound level largest amplitude value per SEG-Y seismic trace (sllav attribute) Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 193.327235 Range_Domain_Maximum: 215.487600 Attribute_Units_of_Measure: decibels Attribute_Measurement_Resolution: 0.000001 Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_RVSL_SEGYpeakamplitude_csv.zip Entity_Type_Definition: zip file containing 36 csv summary tables for each SEG-Y recorded with the hydrophone aboard the R/V San Lorenzo receiver vessel. The first line of the csv files is a header line. Entity_Type_Definition_Source: Producer defined Attribute: Attribute_Label: filename Attribute_Definition: Name of navigation line Attribute_Definition_Source: Assigned unique line identifier name Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25_S_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25A_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the second 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25A_S_a2 Enumerated_Domain_Value_Definition: Pass ‘a2’ (part two of pass a) with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25A_S_a3 Enumerated_Domain_Value_Definition: Pass ‘a3’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L25A_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 25-meter depth site ‘25A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L50_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L50_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L50A_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A' Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L50A_S_a2 Enumerated_Domain_Value_Definition: Pass ‘a2’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L50A_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 50-meter depth site ‘50A’ Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L100_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L100_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L100_S_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L100_S_c2 Enumerated_Domain_Value_Definition: Pass ‘c2’ with the SIG ELP790 minisparker source (power 700 joules) at the 100-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_S_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the SIG ELP790 minisparker source (power 700 joules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_D10_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_D10_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_D10_c Enumerated_Domain_Value_Definition: Pass ‘c’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L200_D10_d Enumerated_Domain_Value_Definition: Pass ‘d’ with the Delta sparker source (power 1.0 kilojoules) at the 200-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L600_S_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the SIG ELP790 minisparker source (power 700 joules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L600_S_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the SIG ELP790 minisparker source (power 700 joules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L600_D24_a Enumerated_Domain_Value_Definition: Pass ‘a’ with the Delta sparker source (power 2.4 kilojoules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SL-L600_D24_b Enumerated_Domain_Value_Definition: Pass ‘b’ with the Delta sparker source (power 2.4 kilojoules) at the 600-meter depth site Enumerated_Domain_Value_Definition_Source: Producer defined Attribute: Attribute_Label: hpid Attribute_Definition: Hydrophone Identifier Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: model number CR3101 (Cetacean Research) Attribute_Domain_Values: Unrepresentable_Domain: model number CR3102 (Cetacean Research) Attribute: Attribute_Label: lbsrc_lon Attribute_Definition: longitude of the sparker source layback position from the stern of the source vessel (RVPS) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.361232 Range_Domain_Maximum: -121.897050 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: lbsrc_lat Attribute_Definition: latitude of the sparker source layback position from the stern of the source vessel (RVPS) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.763453 Range_Domain_Maximum: 36.992548 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: rec_lon Attribute_Definition: longitude of the hydrophone at the receive vessel (RVSL) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -122.337685 Range_Domain_Maximum: -121.924577 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: rec_lat Attribute_Definition: latitude of the hydrophone at the receive vessel (RVSL) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 36.778768 Range_Domain_Maximum: 36.975878 Attribute_Units_of_Measure: decimal degrees Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: signoffset Attribute_Definition: offset distance between the layback position of the sparker source off the stern of the RVPS source vessel and the RVSL hydrophone receiver. Positive values are when the source is northwest of the receiver and negative when the source is southeast of the receiver Attribute_Definition_Source: producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -5440 Range_Domain_Maximum: 4733 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: y Attribute_Definition: Year collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2021 Range_Domain_Maximum: 2021 Attribute_Units_of_Measure: year collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: jd Attribute_Definition: Julian Day collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 111 Range_Domain_Maximum: 119 Attribute_Units_of_Measure: Julian day collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: h Attribute_Definition: hour collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 14 Range_Domain_Maximum: 20 Attribute_Units_of_Measure: hour of day collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: m Attribute_Definition: minute collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: minute of hour collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: s Attribute_Definition: second collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 59 Attribute_Units_of_Measure: second of minute collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: us Attribute_Definition: microsecond collected Attribute_Definition_Source: time stamp from GGA navigation string from receiver vessel (RVSL) Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 68156 Range_Domain_Maximum: 932070 Attribute_Units_of_Measure: microsecond of second of minute collected Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: utc_dt Attribute_Definition: Coordinated Universal Time (UTC) Day Time string Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. For example, 2021-04-23 18:31:02.999936+00:00 represents 2021-04-23 as the date collected and 18:31:02.999936+00:00 is the UTC time that the navigation point was taken. Attribute: Attribute_Label: rec_elev Attribute_Definition: RVSL receive vessel hydrophone elevation (depth below surface) Attribute_Definition_Source: RBR solo depth logger attached at hydrophone receiever. Note that NaN values exist where no depth data was recorded. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -20.75 Range_Domain_Maximum: -9.45 Attribute_Units_of_Measure: depth in meters Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: lav Attribute_Definition: largest absolute amplitude value for each seismic trace recorded by hydrophone on receive vessel Attribute_Definition_Source: R/V San Lorenzo receive SEG-Y files Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.000057 Range_Domain_Maximum: 0.150862 Attribute_Units_of_Measure: amplitude Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: lav_ms Attribute_Definition: time in milliseconds of the largest absolute amplitude value for each seismic trace Attribute_Definition_Source: R/V San Lorenzo receive SEG-Y files Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 24.427999 Range_Domain_Maximum: 4342.666016 Attribute_Units_of_Measure: milliseconds Attribute_Measurement_Resolution: 0.000001 Attribute: Attribute_Label: spllav Attribute_Definition: sound level largest amplitude value Attribute_Definition_Source: largest absolute value SEG-Y seismic trace Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 123.654745 Range_Domain_Maximum: 192.171604 Attribute_Units_of_Measure: depth in meters Attribute_Measurement_Resolution: 0.01 Attribute: Attribute_Label: mfspllav Attribute_Definition: 51 trace-mean filtered sound pressure level at the largest amplitude value sample Attribute_Definition_Source: mean filtered Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 129.476535 Range_Domain_Maximum: 187.471121 Attribute_Units_of_Measure: depth in meters Attribute_Measurement_Resolution: 0.01 Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_peakamplitude_scatter_plots.zip Entity_Type_Definition: Zip file containing 9 SEG-Y peak amplitude summary plots, one per depth site and sparker source (SIG minisparker: L25, L25A, L50, L50A, L100, L200, L600 and Delta sparker: L200 and L600) in PNG format. Each plot contains an upper scatter plot of sparker source and receiver sound pressure levels shown as a function of offset in meters from the sparker source. Each plot also contains a lower plot of receiver hydrophone sound pressure level shown as a function of offset in meters from the sparker source, which is referenced to the spherical divergence curve calculated using the mean measured source sound level for all passes at each depth station. These plotted data are taken from the R/V Parke Snavely (source) and R/V San Lorenzo (receiver) peak amplitude csv files contained in the 2021-619-FA_RVPS_SEGYpeakamplitude_csv.zip and 2021-619-FA_RVSL_SEGYpeakamplitude_csv.zip zip files previously described. Entity_Type_Definition_Source: Producer defined Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_peakamplitude_MeanFilterCurve_plots.zip Entity_Type_Definition: Zip file containing 9 SEG-Y peak amplitude summary plots, one per depth site and sparker source (SIG minisparker: L25, L25A, L50, L50A, L100, L200, L600 and Delta sparker: L200 and L600) in PNG format. Each plot contains an upper plot of 51-trace mean filtered sparker source and receiver sound pressure levels shown as a function of offset in meters from the sparker source. Each plot also contains a lower plot of 51-trace mean filtered receiver hydrophone sound pressure levels shown as a function of offset in meters from the sparker source, which is referenced to the spherical divergence curve calculated using the mean measured source sound level for all passes at each depth station. These plotted data are taken from the R/V Parke Snavely (source) and R/V San Lorenzo (receiver) peak amplitude csv files contained in the 2021-619-FA_RVPS_SEGYpeakamplitude_csv.zip and 2021-619-FA_RVSL_SEGYpeakamplitude_csv.zip files previously described. Entity_Type_Definition_Source: Producer defined Overview_Description: Entity_and_Attribute_Overview: The first line of the csv file is a header line. Entity_and_Attribute_Detail_Citation: U.S. Geological Survey Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey - CMGDS Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Resource_Description: Peak amplitude data are presented in csv format for each pass. Data from the source and receiver vessels are zipped together separately (2021-619-FA_RVPS_SEGYpeakamplitude_csv.zip and 2021-619-FA_RVSL_SEGYpeakamplitude_csv.zip, respectively). The corresponding summary plots of recorded peak amplitude sound pressure levels as a function of offset from the sparker source are presented as scatter plots and as 51-trace mean filtered plots contained in two separate zip files (2021-619-FA_peakamplitude_scatter_plots.zip and 2021-619-FA_peakamplitude_MeanFilterCurve_plots.zip, respectively). These plots are organized by depth site and sparker source type, containing all recorded passes, and are presented in PNG format. Distribution_Liability: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty expressed or implied is made regarding the display or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: RFC 4180 Format_Information_Content: Zip file contains 30 csv files File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 1.0 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9EHITBI Access_Instructions: Data (2021-619-FA_RVPS_SEGYpeakamplitude_csv.zip) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Digital_Form: Digital_Transfer_Information: Format_Name: comma-delimited text Format_Version_Number: RFC 4180 Format_Information_Content: Zip file contains 36 csv files File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 1.2 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9EHITBI Access_Instructions: Data (2021-619-FA_RVSL_SEGYpeakamplitude_csv.zip) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Format_Version_Number: ImageMagick (version 7.0.8-11) Format_Specification: Portable Network Graphic (PNG) Format_Information_Content: Zip file contains 9 PNG images File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 3.8 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9EHITBI Access_Instructions: Data (2021-619-FA_peakamplitude_scatter_plots.zip) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Digital_Form: Digital_Transfer_Information: Format_Name: PNG Format_Version_Number: ImageMagick (version 7.0.8-11) Format_Specification: Portable Network Graphic (PNG) Format_Information_Content: Zip file contains 9 PNG images File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 2.3 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: https://doi.org/10.5066/P9EHITBI Access_Instructions: Data (2021-619-FA_peakamplitude_MeanFilterCurve_plots.zip) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Fees: None. Technical_Prerequisites: CSV data can be viewed with any text editing or spreadsheet software. PNG images can be viewed with any image viewing software. Metadata_Reference_Information: Metadata_Date: 20220920 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey, Pacific Coastal and Marine Science Center Contact_Person: PCMSC Science Data Coordinator Contact_Address: Address_Type: mailing and physical Address: 2885 Mission Street City: Santa Cruz State_or_Province: CA Postal_Code: 95060 Contact_Voice_Telephone: 831-427-4747 Contact_Electronic_Mail_Address: pcmsc_data@usgs.gov Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998