Metadata: Identification_Information: Citation: Citation_Information: Originator: Alicia F. Balster-Gee Originator: Wayne E. Baldwin Originator: Patrick E. Hart Publication_Date: 20220920 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: seismic-reflection data in SEG-Y format 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: Seismic data were recorded from the R/V San Lorenzo (RVSL; receive vessel) of 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). The R/V Parke Snavely (RVPS; source vessel) towed a marine sparker sound source along seven depth site transects ranging between 25 and 600 meters. The RVSL maintained a nearly stationary position at the midpoint of each transect and recorded sound data with a broadband omnidirectional Cetacean Research CR3 hydrophone positioned between 10- and 20-meters water depth below the RVSL. RVSL receive seismic data are presented in SEG-Y format. Shot point navigation are provided in an accompanying comma-delimited text file, as well as in a shapefile for visualization purposes. Navigation data for the source and receiver vessels, as well as seismic data from the source vessel, sound velocity, and other survey data, are provided elsewhere in this data release. 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 activities 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: -122.338 East_Bounding_Coordinate: -121.925 North_Bounding_Coordinate: 36.9759 South_Bounding_Coordinate: 36.7788 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:e8235354-c75d-4d6c-a1f9-f4a697c3416c 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 methods Theme_Keyword: seismic reflection profiling 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: 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 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: 2021-619-FA_receive_SEG-Y_L200_b.png Browse_Graphic_File_Description: Image of seismic line recorded aboard the nearly stationary receive vessel (R/V San Lorenzo; RVSL) as the source vessel (R/V Parke Snavely; RVPS) transited along the L200 pass ‘b’ trackline while firing the with the SIG ELP790 sparker source (power 700 joules). Peak amplitudes per trace are shown in green. 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: R/V Parke Snavely source data were originally recorded as continuous hydrophone (model TC4034) waveforms (TDMS format) with Tektronix SignalExpress software (v. 2015). Navigational data (raw GGA format) were recorded using an Alplanix PosMV Elite (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-ELITE.pdf) positioning system. Depth data were logged using an RBR Solo-D depth logger that was mounted above the TC3404 hydrophone for most of the survey lines to estimate depths with the RBR Ltd. Ruskin utility (v2.7.3.201905031233). R/V San Lorenzo receive data were originally recorded as continuous hydrophone (models CR3101 or CR 3102 https://www.cetaceanresearch.com/hydrophones/cr3-hydrophone/index.html) waveforms (.wav format) with SpectraPlus-SC software with a 192 kHz sample rate. Navigational data for the R/V San Lorenzo (raw GGA format) was recorded using a Garmin GPSMAP 4212 (https://www.garmin.com/en-US/p/8114#specs). 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 was output in SEG-Y format as described in the process steps below. 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). Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Cetacean Research CR3 hydrophones were deployed portside between 10-20 meters below the surface. The hydrophones CR3101 and CR3102 have measured sensitivities of -208.2db and -208.6dB, respectively. RBR solo depth loggers, with a stated accuracy of +/-0.05 percent full scale (about 1 cm water depth), were attached above the CR3 hydrophones to record depths. 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 logged by the RBR solo depth loggers. The position of the RVPS sparker source is recorded in SEG-Y header bytes 73/77 in decimal degrees. The position of the RVSL hydrophone receiver is recorded in SEG-Y header bytes 81/85 in decimal degrees. Completeness_Report: Dataset is considered complete for the information presented, as described in the abstract. Some records do not include depth from the RBR logger due to instrument failure. 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 Elite (Position and Orientation System for Marine Vessels) was used to position the R/V Parke Snavely during data collection (https://www.applanix.com/downloads/products/specs/posmv/POS-MV-ELITE.pdf) has a stated positional accuracy of 0.5-2 meters squared. A Garmin GPSMAP 4212 (https://www.garmin.com/en-US/p/8114) with 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 parker 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. An RBR Solo-D depth logger was mounted above the CR3 receive 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. states 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 the Receiver Group Elevation header (bytes 41-44). 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 RVPS sparker source and the hydrophone on the RVSL receive 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 (receiver 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 RVSL receive vessel was used to calculated the offset between the RVPS sparker source and the hydrophone on the receive 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 (RVPS) Process_Step: Process_Description: A 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 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. Navigation data aboard the source vessel were acquired using an Applanix PosMV Elite differential Global Positioning System (DGPS). The source vessel navigation data (SrcNav) and outgoing source signal data (SrcSegy) are provided elsewhere in this data release. Process_Date: 20210427 Process_Step: Process_Description: The receiver vessel (R/V San Lorenzo; RVSL), maintained a nearly stationary position at the midpoint of each trackline and recorded the signal on one or two Cetacean Research CR3 omnidirectional hydrophones (CR3101 and CR3102) deployed mid-vessel between 10 and 20-meters water depth. The CR3 hydrophones recorded continuous waveform data (.wav format) using SpectraPlus software sampling at 192 KHz. RBR Solo-D depth loggers were positioned near the hydrophones to record the receiver hydrophone depth data (HPdepth_m column when available). Navigation data for the receiver vessel (RecNav) were acquired with a Garmin GPSMAP 4212 Differential Global Positioning System (DGPS) and are provided elsewhere in this data release. Process_Date: 20210427 Process_Step: Process_Description: Navigational data from both the RVPS source and RVSL 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. 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 RVSL receive hydrophone 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 which is the source offset value in meters that is positive when the RVPS is northwest of the RVSL and negative when the RVPS is southeast of the RVSL. 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 receive 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 receiver vessel navigation, shot times, and RBR hydrophone depths (when recorded) were written to SEG-Y headers (2021-619-FA_RVSL_RecSegy.zip). A CSV file that contains source vessel shot point navigation, offset, shot times, vessel, device, and SEG-Y filename summary information was created (2021-619-FA_RVSL_RecSegyNav.csv), along with a shapefile of shot point navigation for visual purposes (2021-619-FA_RVSL_RecSegyNav_shapefile.zip). 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: 21819 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_RVSL_RecSegy.zip Entity_Type_Definition: Zip archive of seismic shots with time stamp in standard SEG-Y file format Entity_Type_Definition_Source: Society of Exploration Geophysicists (SEG) Technical Standards, available for download at http://seg.org/Publications/SEG-Technical-Standards Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_RVSL_RecSegyNav.csv Entity_Type_Definition: SEG-Y shot point navigation and associated attributes. The first line of the csv file is a header line. Entity_Type_Definition_Source: U.S. Geological Survey 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: 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 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 RVSL hydrophone receiver 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 RVSL hydrophone receiver 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 receive vessel R/V San Lorenzo 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 receive 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 receive 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 receive 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 receive 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 receive 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: surveyid Attribute_Definition: USGS field activity number (FAN) assigned to data collection activity Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: 2021-619-FA, details for which may be found at https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-619-FA Attribute: Attribute_Label: vehicleid Attribute_Definition: name of the vessel from which data was collected Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: R/V San Lorenzo Attribute: Attribute_Label: deviceid Attribute_Definition: Sparker source type and power level (in joules) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Applied Acoustics Delta Sparker (2400 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Applied Acoustics Delta Sparker (1000 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SIG ELP790 Sparker (700 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Detailed_Description: Entity_Type: Entity_Type_Label: 2021-619-FA_RVSL_RecSegyNav_shapefile.zip Entity_Type_Definition: Zip file contains a point shapefile (.shp) of the location of each SEG-Y shot point along the navigated tracklines of the receiver vessel (R/V San Lorenzo; RVSL) and associated files Entity_Type_Definition_Source: U.S. Geological Survey 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: 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 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 RVSL hydrophone receiver 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 RVSL hydrophone receiver 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 source vessel RVPS 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 receive vessel R/V San Lorenzo 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: surveyid Attribute_Definition: USGS field activity number (FAN) assigned to data collection activity Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: 2021-619-FA, details for which may be found at https://cmgds.marine.usgs.gov/fan_info.php?fan=2021-619-FA Attribute: Attribute_Label: vehicleid Attribute_Definition: name of the vessel from which data was collected Attribute_Definition_Source: producer defined Attribute_Domain_Values: Unrepresentable_Domain: R/V San Lorenzo Attribute: Attribute_Label: deviceid Attribute_Definition: Sparker source type and power level (in joules) Attribute_Definition_Source: producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Applied Acoustics Delta Sparker (2400 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: Applied Acoustics Delta Sparker (1000 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Attribute_Domain_Values: Enumerated_Domain: Enumerated_Domain_Value: SIG ELP790 Sparker (700 J) Enumerated_Domain_Value_Definition: Brand name and model of sparker source and power level measured in joules Enumerated_Domain_Value_Definition_Source: Producer defined Overview_Description: Entity_and_Attribute_Overview: Sparker source data in SEG-Y format, with shot-point navigation presented in both shapefile and csv file formats. 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: These SEG-Y data are available in the zip file 2021-619-FA_RVSL_RecSegy.zip that contains 36 standard SEG-Y format files of seismic shots with time stamp (Society of Exploration Geophysicists (SEG) Technical Standards, available for download at http://seg.org/Publications/SEG-Technical-Standards). SEG-Y files were named SL-LDDD-S-P_CR3###_Vp.segy where SL is the vessel ID (R/V San Lorenzo), LDDD is the Line depth site (meters), S is the Source instrument used (S for SIG-ELP790 sparker at 700J power, D10 for the Applied Acoustics Delta sparker at 1000J power, and D24 for the Applied Acoustics Delta sparker at 2400J power), P is the pass label (a, b, c, etc.), and CR3101 and CR3102 are the hydrophone model numbers. The 36 receiver SEG-Y files are contained in a single zip file 2021-619-FA_RVSL_RecSegy.zip in the Data Files section. A shapefile of the SEG-Y navigation is available in the zip file 2021-619-FA_RVSL_RecSegyNav_shapefile.zip. These navigation data are also contained in a single csv file (2021-619-FA_RVSL_RecSegyNav.csv). 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: SEG-Y Format_Version_Number: SEG-Y rev 1 Format_Information_Content: Zip file contains the raw seismic data per navigation line File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 2900 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_RecSegy.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 the File_Decompression_Technique: No file compression applied. Transfer_Size: 3.9 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_RecSegyNav.csv) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Digital_Form: Digital_Transfer_Information: Format_Name: shapefile Format_Version_Number: ArcGIS Pro (version 2.4.1) Format_Information_Content: Zip file contains a shape file of R/V Parke Snavely source SEG-Y navigation trackline navigation points in csv format. File_Decompression_Technique: The zip file can be decompressed with any zip utility (for example, 7zip, Keka, WinZip). Transfer_Size: 1.1 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_RecSegyNav_shapefile.zip) can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section. Fees: None. Technical_Prerequisites: Use of SEG-Y data requires specialized software, such as ProMax and Seisworks by Landmark Geophysical; FOCUS and SeisX by Paradigm Geophysical; SPW by Parallel Geoscience; VISTA by Seismic Image Software; SeiSee by Dalmorneftegeophysica (DMNG); amongst others. CSV data can be viewed with any text editing or spreadsheet software. The cast location point shapefile can be viewed in any mapping 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