High-resolution multichannel sparker seismic-reflection data acquired along the Cascadia margin during USGS field activity 2019-024-FA

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Alicia F. Balster-Gee
Originator: Nathan C. Miller
Originator: Janet T. Watt
Originator: Emily C. Roland
Originator: Jared W. Kluesner
Originator: Samuel J. Heller
Originator: Patrick E. Hart
Originator: Ray W. Sliter
Originator: Emma K. Myers
Originator: Robert M. Wyland
Originator: Rachel K. Marcuson
Originator: Cordell D. Johnson
Originator: Alexander R. Nichols
Originator: Kevin Pszczola
Originator: Chris Williams
Publication_Date: 20230816
Title:

High-resolution multichannel sparker seismic-reflection data acquired along the Cascadia margin during USGS field activity 2019-024-FA

Geospatial_Data_Presentation_Form: seismic-reflection data in SEG-Y format
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P96ZBXK8

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/P96ZBXK8
Larger_Work_Citation:

Citation_Information:

High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P96ZBXK8

Publication_Information:

Publication_Place: Pacific Coastal and Marine Science Center, Santa Cruz, CA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Suggested Citation: Balster-Gee, A.F., Miller, N.C., Watt, J.T., Roland, E.C., Kluesner, J.W., Heller, S.J., Hart, P.E., Sliter, R.W., Myers, E.K., Wyland, R.M., Marcuson, R.K., Johnson, C.D., Nichols, A.R., Pszczola, K., Williams, C., 2023, High-resolution multichannel sparker seismic-reflection and chirp sub-bottom data acquired along the Cascadia margin during USGS field activity 2019-024-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P96ZBXK8. Online_Linkage: https://doi.org/10.5066/P96ZBXK8

Description:

Abstract:

High-resolution multichannel sparker seismic (MCS) data were collected by the U.S. Geological Survey in collaboration with the University of Washington (UW) in the summer of 2019 along the Cascadia submarine forearc offshore Oregon and Washington.

Purpose:

Data were acquired to characterize quaternary deformation and sediment dynamics along the central and northern Cascadia margin. A total of 62 tracklines were collected and extend from the nearshore to the deformation front and were spaced between 25 and 50 kilometers apart. This work occurred on UW’s R/V Rachel Carson (UW cruise IDs RC0028 and RC0029). MCS data were collected coincidently with chirp sub-bottom data. These data and information are intended for science researchers, students, policy makers, and general public.

Supplemental_Information:

Additional information about the field activity or activities from which these data were derived is available online at:
https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-024-FA https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-654-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 dataset 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: 20190713
Ending_Date: 20190812

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: -127.35351563
East_Bounding_Coordinate: -124.36523438
North_Bounding_Coordinate: 48.45835188
South_Bounding_Coordinate: 42.03297433

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:28224a6e-8f25-4ec3-a882-c1f015c4aea6

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: substrate

Theme:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geophysics
Theme_Keyword: geospatial datasets
Theme_Keyword: sub-bottom profiling

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: seismic methods
Theme_Keyword: seismic reflection profiling
Theme_Keyword: data processing

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 2019-024-FA
Theme_Keyword: field activity number 2019-654-FA
Theme_Keyword: seismic navigation
Theme_Keyword: seismic reflection
Theme_Keyword: SEG-Y traces

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Pacific Ocean
Place_Keyword: State of Washington
Place_Keyword: State of Oregon
Place_Keyword: Quinault Reservation
Place_Keyword: Taholah
Place_Keyword: Copalis Crossing
Place_Keyword: Cohassett Beach
Place_Keyword: Cape Disappointment
Place_Keyword: Cannon Beach
Place_Keyword: Astoria
Place_Keyword: Newport
Place_Keyword: Cape Blanco
Place_Keyword: Port Orford

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: Cascadia subduction zone
Place_Keyword: Olympic Coast National Marine Sanctuary

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: 2019-024-FA.mcs.preview.png
Browse_Graphic_File_Description:

Map of MCS tracklines acquired during USGS field activity 2019-024-FA.

Browse_Graphic_File_Type: PNG

Data_Set_Credit:

This data collection was a joint effort between the U.S. Geological Survey and the University of Washington (UW). The authors acknowledge the crew of UW’s R/V Rachel Carson and all those involved in in survey planning and execution.

Native_Data_Set_Environment:

SEG-Y processing was conducted in Shearwater’s Reveal seismic software (https://www.shearwatergeo.com/4/reveal-software) version 10.4.2021. QGIS-LTR (version 3.21, https://www.qgis.org/en/site/) was used to produce the navigation trackline shapefile and preview image.

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Quality control was conducted during acquisition. Some seismic profiles have gaps in them due to system crashes or intentional shutdowns as required, under terms of our operating permit, to protect marine mammals. Minor swell correction artifacts exist at line starts and ends as well as in areas where seafloor amplitudes are low.

Logical_Consistency_Report:

Quality control was conducted during acquisition and processing to ensure consistency of SEG-Y header navigation and seismic-reflection data that matches bathymetry along the tracklines. Trackline navigation combines SEG-Y line parts into a single-track line (62 tracklines and 141 SEG-Y files, including parts).

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:

The manufacturer’s stated accuracy of the GPS used is +/- 0.6 meters 95 percent confidence (DGPS) (http://dev.wr.usgs.gov/idb/media/service_materials/2022/12/07/101121522789/Hemisphere_V100specsheet.pdf)

Lineage:

Process_Step:

Process_Description:

Raw SEG-D format seismic shots were imported into Shearwater Rebeal seismic software for processing. Navigation data were converted to UTM zone 10N and offset geometry was calculated, and common midpoint (CMP) were binned at 3.125-meter intervals. The following processing steps were applied; resample from .25 to .5ms, extend record length for processing, static correction for aux channels containing the outgoing sparker pulse, 50-Hz highpass Butterworth filter, 50-70-900-1000 bandpass filter, designature/deghost with aux channel sparker signature, FK- fitler, renumber CMPs, pick NMO velocities every 500 CMPs and w/ changes in geology, kill noisy channels, amplitude balance, Normal moveout wit picked velocities, static correction, despike, 3 trace median gather filter, stack, kill ranges of missed shots, post-stack time migration at 1450m/s, post-migration spiking deconvolution (for SEG-Y files contained in zip file 2019-024-FA.mcs.dcn.zip only), record length shortened to original record length, water column mute, 50ms bottom mute, 200ms automatic gain control, and output to SEG-Y for zip file.

Process_Date: 20200402

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Horizontal X and Y locations for the seismic profile locations are provided and stored in the SEG-Y data trace headers in header bytes 181 and 185 locations.

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Map_Projection:

Map_Projection_Name: WGS 1984 UTM Zone 10N
Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -123.0
Latitude_of_Projection_Origin: 0.0
False_Easting: 500000.0
False_Northing: 0.0

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: coordinate pair
Coordinate_Representation:

Abscissa_Resolution: 0.0001
Ordinate_Resolution: 0.0001

Planar_Distance_Units: Meter

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview: Seismic Shots with Time Stamp in standard SEG-Y file format
Entity_and_Attribute_Detail_Citation:

Society of Exploration Geophysicists (SEG) Technical Standards, available for download at http://seg.org/Publications/SEG-Technical-Standards

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 data are available in SEG-Y format (MontereyBathymetry.sgy) and are contained in two zip files which are two versions of the same seismic profiles: the migrated version (2019-024-FA.mcs.mig.zip) and the migrated with a post-migration spiking deconvolution version (2019-024-FA.mcs.dcn.zip). These data are accompanied by CSDGM FGDC-compliant metadata.

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: rev 1
Format_Information_Content:

Zip file contains the processed 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: 16800

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://doi.org/10.5066/P96ZBXK8

Access_Instructions:

Data and metadata can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section and selecting the 2019-024-FA.mcs.mig.zip link.

Fees: None.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: SEG-Y
Format_Version_Number: rev 1
Format_Information_Content:

Zip file contains the processed 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: 16400

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: https://doi.org/10.5066/P96ZBXK8

Access_Instructions:

Data and metadata can be downloaded using the Network_Resource_Name link and scrolling to the Sparker Data section and selecting the 2019-024-FA.mcs.dcn.zip link.

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.

Metadata_Reference_Information:

Metadata_Date: 20230816
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

This page is <https://cmgds.marine.usgs.gov/catalog/pcmsc/DataReleases/CMGDS_DR_tool/DR_P96ZBXK8/2019-024-FA.mcs.metadata.html>