Chirp sub-bottom data of USGS field activity 2017-612-FA collected in Puget Sound and Lake Washington, Washington in February of 2017

Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]

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: Janet T. Watt
Originator: Emily C. Roland
Originator: Jared W. Kluesner
Originator: Daniel S. Brothers
Originator: Scott Bennett
Originator: Patrick E. Hart
Originator: Emma K. Myers
Originator: Maureen A.L. Walton
Originator: Brian Sherrod
Publication_Date: 20210122
Title:

Chirp sub-bottom data of USGS field activity 2017-612-FA collected in Puget Sound and Lake Washington, Washington in February of 2017

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

Series_Name: data release
Issue_Identification: DOI:10.5066/P9GWF28U

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/P9GWF28U
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5f9aed21d34e198cb78b8880

Larger_Work_Citation:

Citation_Information:

Originator: Alicia F. Balster-Gee
Originator: Janet T. Watt
Originator: Emily C. Roland
Originator: Jared W. Kluesner
Originator: Daniel S. Brothers
Originator: Scott Bennett
Originator: Patrick E. Hart
Originator: Emma K. Myers
Originator: Kevin Pszczola
Originator: Maureen A.L. Walton
Originator: Brian Sherrod
Publication_Date: 2020
Title:

Multichannel minisparker, multichannel boomer, and chirp seismic-reflection data of USGS field activity 2017-612-FA collected in Puget Sound and Lake Washington in February of 2017

Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9GWF28U

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/P9GWF28U

Description:

Abstract:

High-resolution chirp sub-bottom data were collected by the U.S. Geological Survey and the University of Washington in February of 2017 west of Seattle in Puget Sound and in Lake Washington, Washington. Data were collected aboard the University of Washington’s R/V Clifford A. Barnes during USGS field activity 2017-612-FA using an Edgetech SB-512i sub-bottom profiler. Sub-bottom acoustic penetration spans several tens of meters and is variable by location.

Purpose:

Data were acquired to support the USGS Coastal and Marine Hazards and Resources Program’s earthquake, tsunami, and landslide active margin field studies to aide hazard assessment of the Seattle Fault zone in central Puget Sound and Lake Washington. Data were collected to characterize recent deformation and estimate earthquake recurrence on the Seattle Fault zone. These data and information are intended for science researchers, students from elementary through college, policy makers, and general public.

Supplemental_Information:

Additional information about the field activities from which these data were derived is available online at:
http://cmgds.marine.usgs.gov/fan_info.php?fan=2017-612-FA
Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20170218
Ending_Date: 20170228

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: -122.857306084
East_Bounding_Coordinate: -122.11712646
North_Bounding_Coordinate: 48.10412981
South_Bounding_Coordinate: 47.20861616

Keywords:

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificinformation
Theme_Keyword: oceans

Theme:

Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: Substrate
Theme_Keyword: Distributions

Theme:

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

Theme:

Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) keywords
Theme_Keyword: seismic reflection profiling
Theme_Keyword: seabed
Theme_Keyword: acoustic methods
Theme_Keyword: mapping
Theme_Keyword: geophysics

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:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5f9aed21d34e198cb78b8880

Place:

Place_Keyword_Thesaurus: Geographic Names Information System (GNIS)
Place_Keyword: Puget Sound
Place_Keyword: State of Washington
Place_Keyword: Bainbridge Island
Place_Keyword: Vashon Island
Place_Keyword: Blake Island
Place_Keyword: Harbor Island
Place_Keyword: West Seattle
Place_Keyword: Manchester
Place_Keyword: Colby
Place_Keyword: Bellevue
Place_Keyword: Ballard
Place_Keyword: Whidbey Island
Place_Keyword: Mercer Island
Place_Keyword: Ohlers Island
Place_Keyword: Baby Island
Place_Keyword: Gedney Island
Place_Keyword: Camano Island
Place_Keyword: Freeland
Place_Keyword: Greenbank
Place_Keyword: Clinton
Place_Keyword: Mukilteo
Place_Keyword: Edmonds
Place_Keyword: Lake Washington

Place:

Place_Keyword_Thesaurus: NGA GEOnet Names Server (GNS)
Place_Keyword: Puget Sound
Place_Keyword: Lake Washington

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:

https://www.sciencebase.gov/catalog/file/get/5f9aed21d34e198cb78b8880?name=2017-612-FA_Chirp_Trackline_Map.png&allowOpen=true

Browse_Graphic_File_Description:

Map of chirp tracklines collected during USGS field activity 2017-612-FA.

Browse_Graphic_File_Type: PNG

Native_Data_Set_Environment: SEG-Y rev 1

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Quality control was conducted during data acquisition and quality was assured during data processing

Logical_Consistency_Report:

No formal logical consistency tests were conducted, but quality control was conducted during acquisition.

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:

Estimated to be no less than 3 m due to total propagated uncertainties of navigation as well as data processing.

Vertical_Positional_Accuracy:

Vertical_Positional_Accuracy_Report:

A formal accuracy assessment of the vertical positional information in the data set has not been conducted.

Lineage:

Process_Step:

Process_Description:

Chirp sub-bottom data were collected using an Edgetech-512i sub-bottom profiler. Because file sizes were limited to 200 MB during acquisition, there may be several line parts per navigation line. Turn lines are denoted with a ‘t’ following the line number, are generally low quality. Data were corrected for sub-bottom profiler tow depth, and converted to envelope. Navigation was converted from seconds of arc to UTM zone 10N. Dataset is divided into two data zip files based on geographic location: 2017-612-FA_LakeWashington_chirp.zip and 2017-612-FA_PugetSound_chirp.zip.

Process_Date: 20170620

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference:

Horizontal X and Y locations for each seismic profile location are stored in the SEG-Y data trace headers in header bytes 81 and 85.

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

Geodetic_Model:

Horizontal_Datum_Name: D WGS 1984
Ellipsoid_Name: WGS 1984
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257223563

Vertical_Coordinate_System_Definition:

Depth_System_Definition:

Depth_Datum_Name: local surface
Depth_Resolution: 0.1
Depth_Distance_Units: two-way travel time
Depth_Encoding_Method: attribute values

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 - ScienceBase

Contact_Address:

Address_Type: mailing and physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225

Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov

Resource_Description:

Dataset is divided into two data zip files based on geographic location: 2017-612-FA_LakeWashington_chirp.zip and 2017-612-FA_PugetSound_chirp.zip. Zip files contain chirp sub-bottom (SEG-Y) data collected during USGS field activity 2017-612-FA. The data are divided up and presented by navigation line, as reflected in the individual file names. Chirp file sizes are limited to 200 MB so there may be several line parts per navigation line.

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 files contains the processed seismic data per navigation line and are divided based on geographic location.

File_Decompression_Technique:

Winzip, 7-zip, or Winrar are free software that will open .zip files

Transfer_Size: 11330

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

https://www.sciencebase.gov/catalog/file/get/5f9aed21d34e198cb78b8880

Network_Resource_Name:

https://www.sciencebase.gov/catalog/item/5f9aed21d34e198cb78b8880

Network_Resource_Name: https://doi.org/10.5066/P9GWF28U

Access_Instructions:

Data can be downloaded using the Network_Resource_Name links. The first link is a direct link to download a zipped file of all chirp data, metadata, and a map. The second link points to a landing page with the chirp data separated by geographic location (2017-612-FA_LakeWashington_chirp.zip and 2017-612-FA_PugetSound_chirp.zip). The third link points to the landing page for the entire data release including links to other data types. To download the chirp data, it's recommended that you go to the chirp landing page (second link) and take advantage of the large file handler.

Fees: None.

Technical_Prerequisites:

Use of SEG-Y data requires specialized software, such as Reveal by Shearwater Geophysical; 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: 20210122
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/ScienceBase/DR_P9GWF28U/2017-612-FA_chirp_metadata.html>