Archive of Chirp Subbottom Profile Data Collected in 2019 from Cedar Island, Virginia

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

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Arnell S. Forde
Originator: Chelsea A. Stalk
Originator: Jennifer L. Miselis
Publication_Date: 20201015
Title:
Archive of Chirp Subbottom Profile Data Collected in 2019 from Cedar Island, Virginia
Geospatial_Data_Presentation_Form: Multimedia presentation
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P9S75Q0U
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.5066/P9S75Q0U
Description:
Abstract:
From August 9 to 14, 2019, researchers from the U.S. Geological Survey (USGS) conducted a geophysical survey to investigate shoreface morphology and geology near Cedar Island, Virginia. The Coastal Sediment Availability and Flux project objectives include understanding the morphologic evolution of the barrier island system on a variety of time scales (months to centuries) and resolving storm-related impacts, post-storm beach response, and recovery. This publication serves as an archive of high-resolution chirp subbottom data, survey trackline map, navigation files, geographic information system (GIS) data, and formal Federal Geographic Data Committee (FGDC) metadata. Processed subbottom profile images are also provided. The archived trace data are in standard Society of Exploration Geophysicists (SEG) SEG Y revision 0 format (Barry and others, 1975). In addition to this data release, the SEG Y files can be downloaded from the USGS Coastal and Marine Geoscience Data System (CMGDS) at, https://cmgds.marine.usgs.gov. Bathymetry and backscatter data were also collected during this survey are available in Stalk and others (2020).
Purpose:
The purpose of this data release is to facilitate the archive of digital chirp subbottom profile data and associated files collected during USGS Field Activity Number 2019-332-FA. Additional survey and data details are available from the USGS CMGDS at, https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-332-FA.
Supplemental_Information:
Chirp systems use a signal of continuously varying frequency; the system used during this survey produces high-resolution, shallow-penetration (typically less than 75-milliseconds [ms]) profile images of sub-seafloor stratigraphy. The towfish contains a transducer that transmits and receives acoustic energy and is typically towed 1–2 meters (m) below the sea's surface. As transmitted acoustic energy intersects density boundaries, such as the seafloor or sub-surface sediment layers, energy is reflected toward the transducer, received, and recorded by a PC-based seismic acquisition system. This process is repeated at regular intervals (for example, 0.125 seconds [s]) and returned energy is recorded for a specific duration (for example, 50 ms). In this way, a two-dimensional (2D) vertical image of the shallow geologic structure beneath the towfish is produced. The seismic source utilized during 2019-332-FA consisted of an EdgeTech SB-512i towfish running DISCOVER version 4.09 acquisition software and towed on the port side of the research vessel (R/V) Sallenger, approximately 18 m behind the global positioning system (GPS) reference point. The data were acquired using a frequency sweep of 0.5-12 kilohertz (kHz), a 43 kHz sample frequency, and recording length was approximately 200 ms. Based on survey speeds of 3.5-4.5 knots, the shot spacing was approximately 0.450 m. The binary portion of the seismic data is stored in SEG Y rev. 0, IBM float format, which is a standard digital format that can be read and manipulated by most seismic processing software packages; the first 3,200 bytes of the file header are in American Standard Code for Information Interchange (ASCII) format instead of Extended Binary Coded Decimal Interchange Code (EBCDIC) format. The SEG Y formatted trace files have a .sgy extension and may be downloaded and processed with commercial or public domain software such as Seismic Unix (SU) (Cohen and Stockwell, 2010). The printable profiles provided are chirp subbottom profile images that were processed using SU software. Survey Field Activity Collection System (FACS) and geophysical logs are also provided as supplemental information in the download file, 2019-332-FA_logs.zip.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20190809
Ending_Date: 20190814
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -75.614853
East_Bounding_Coordinate: -75.539711
North_Bounding_Coordinate: 37.695744
South_Bounding_Coordinate: 37.570942
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:8b100685-3918-40ca-a157-913ec559ae93
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: geoscientificInformation
Theme_Keyword: oceans
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: sub-bottom profiling
Theme_Keyword: marine geology
Theme_Keyword: geology
Theme_Keyword: coastal processes
Theme:
Theme_Keyword_Thesaurus: Data Categories for Marine Planning
Theme_Keyword: distributions
Theme_Keyword: physical habitats and geomorphology
Theme:
Theme_Keyword_Thesaurus: Marine Realms Information Bank (MRIB) Keywords
Theme_Keyword: seismic reflection profiling
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: Seismic reflection
Theme_Keyword: Chirp
Theme_Keyword: Society of Exploration Geophysicists
Theme_Keyword: SEG Y
Theme_Keyword: Cedar Island
Theme_Keyword: Coastal Sediment Availability and Flux
Theme_Keyword: 2019-332-FA
Place:
Place_Keyword_Thesaurus: Common Geographic Areas
Place_Keyword: United States
Place_Keyword: Virginia
Place_Keyword: North Atlantic
Access_Constraints: None. These data are held in the public domain.
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. The U.S. Geological Survey requests to be acknowledged as originator of the data in future products or derivative research.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: Saint Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Data_Set_Credit:
Funding and (or) support for this study were provided by the USGS Coastal and Marine Hazards and Resources Program. The authors thank Andrew Farmer of the USGS for his assistance in data collection and piloting the R/V Sallenger. This document was improved by scientific/editorial and metadata reviews from Daniel Ciarletta and Breanna Williams of the USGS - St. Petersburg, Florida.
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 10 Version 6.2 (Build 9200); Environmental Systems Research Institute (Esri) ArcGIS 10.6 (Build 8321)
Cross_Reference:
Citation_Information:
Originator: Barry, K.M., Cavers, D.A., and Kneale, C.W.
Publication_Date: 1975
Title: Recommended standards for digital tape formats
Series_Information:
Series_Name: Geophysics
Issue_Identification: v. 40, no. 2
Other_Citation_Details: pages 344-352
Online_Linkage: https://doi.org/10.1190/1.1440530
Cross_Reference:
Citation_Information:
Originator: Cohen, J.K., and Stockwell, J.W., Jr., CWP/SU
Publication_Date: 2010
Title:
Seismic Un*x Release No. 44: An open source software package for seismic research and processing
Publication_Information:
Publication_Place: Golden, Colorado
Publisher: Center for Wave Phenomena, Colorado School of Mines
Online_Linkage: https://github.com/JohnWStockwellJr/SeisUnix
Cross_Reference:
Citation_Information:
Originator: Stalk, C.A., Farmer, A.S., and Miselis, J.L.
Publication_Date: 20201005
Title:
Coastal Single-beam Bathymetry Data Collected in September 2019 from Cedar Island, Virginia
Series_Information:
Series_Name: U.S. Geological Survey Data Release
Issue_Identification: doi:10.5066/P927Q8M1
Publication_Information:
Publication_Place: St. Petersburg, Florida
Publisher:
U.S. Geological Survey - St. Petersburg Coastal and Marine Science Center
Online_Linkage: https://doi.org/10.5066/P927Q8M1
Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
The validity or accuracy of marine subbottom profiles is highly qualitative and dependent on equipment and operating condition variables. Due to a problem with the acquisition computer's clock, the wrong day of year (DOY) was recorded to the SEG Y files acquired in the field; however, the correct DOY was recorded to the [proprietary] JSTAR Standard Format (JSF) files (.jsf) that were saved concurrently along with the SEG Y files. To correct this issue, the .jsf files were converted to .sgy format and subsequently used during subbottom processing. During preliminary chirp data processing, visual inspection of the images rendered from the subbottom data showed the presence of an anomaly at approximately 10 ms (two-way travel time [TWT]) on some profiles. This issue was resolved during post-processing and the data were re-checked for quality assurance/quality control compliance. Various equipment issues (for example, GPS or battery) were encountered during data collection; consequently, if post-processed navigation were unavailable for a line, real-time kinematic (RTK) navigation was used instead. Chirp lines with "_env_bp_mod" appended to the file name used post-processed differential global positioning system (DGPS) coordinates for navigation, all other lines used RTK positions recorded during acquisition.
Logical_Consistency_Report:
These datasets are from one field activity with consistent instrument calibrations.
Completeness_Report:
A total of 64 seismic lines were collected during this field activity. 11 tracklines had none or partial post-processed navigation. On DOY 222, only the JSF file for line 0002_1416 was recorded in the field, the .sgy file provided in this data release was created during seismic post-processing. The last line collected on DOY 223, 0016_1939, ended prematurely because of battery failure. Due to poor weather conditions, no data were collected on DOY 225 of this survey. Please see the "Corrections" tab of 2019_332_CHIRP_SBES_OpsLog.xlsx for detailed descriptions of changes made during seismic processing.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Both subbottom and bathymetry data were collected aboard a towed seismic sled, which was outfitted with a GPS receiver and single-beam echosounder. An Ashtech Proflex 800 GPS receiver was used to collect position information on the sled. Differential positioning was obtained through post-processing the base station (established on National Geodetic Survey benchmark AJ4587) data to the rover located on the sled. Manufacture stated accuracy for positioning utilizing a DGPS is 0.5-2 m. To ensure consistent spacing between survey lines (for example, 5 m in the nearshore and 10 m for offshore lines), a similar GPS set up was established aboard the R/V Sallenger, where pre-determined trackline locations were imported into HYPACK 2018 navigation software and followed during seismic data collection. Positions from the Proflex receiver located on the R/V Sallenger were recorded and written to seismic trace headers in arcseconds every 1 second (s) and were subsequently converted to latitude and longitude coordinates (World Geodetic System of 1984, WGS84, realization G1762). The approximate 18-m offset between the chirp shot/sled position and ship's GPS antenna reference point were not accounted for during acquisition. For additional positional accuracy and navigation details specific to the GPS and bathymetry data, please refer to the metadata included in Stalk and others (2020).
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
These data are not to be used for bathymetry. TWT times shown on the printable profile images are relative to the chirp towfish position, not to the sea surface.
Lineage:
Process_Step:
Process_Description:
Chirp acquisition and processing - USGS scientists created a purpose-built, towed sled system to mount the 512i chirp subbottom profiler (just below the water's surface) and enable launching and recovery from the beach. The seismic sled was also configured to help ensure the quality of data collected in exceedingly shallow water depths, such as those observed near the shoreline, over shallow nearshore bars, and within the surf zone. Subbottom data were acquired from one survey platform, the seismic sled, which was towed by the 26-foot R/V Sallenger. 64 lines, equivalent to a total of 299.075 line-kilometers, were surveyed. The SEG Y data were processed with Seismic Unix (Release 44) software to produce gained Graphics Interchange Format (GIF) images of the subbottom profiles included in this data release. A representative chirp data processing sequence consisted of (1) applying a 3000-4000-10,000-12,000 bandpass filter to the analytic data to remove noise from the raw data, prior to creating the envelope seismic data file; corrected files included in this publication have "_env_bp" appended to the line name (2) removing raw navigation data for each shot and converting the SEG Y file to SU format, (3) inserting post-processed DGPS coordinates into the headers, these files have "_env_bp_mod" appended to file name (4) applying automatic gain control, (5) generating a PostScript image of the traces, and (6) converting the PostScript image to a GIF image.
Source_Used_Citation_Abbreviation: SEG Y
Process_Date: 20200225
Source_Produced_Citation_Abbreviation: SEG Y.gif
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Process_Step:
Process_Description:
Navigation acquisition and processing: An Ashtech Proflex 800 unit with a global navigation satellite system antenna (positioned amidships) was used for positioning onboard the R/V Sallenger. Real-time positions from the Proflex were recorded and written to the seismic trace headers via a RS232 cable running from the Proflex receiver to the topside unit of the chirp system. Supplementary acquisition and processing information for the navigation data associated with the seismic sled and GPS are included in Cedar_Island_2019_SBES_metadata.txt (Stalk and others, 2020). Location data were extracted from the SEG Y headers of the processed subbottom profiles, using Seismic Unix software and output as ASCII text files; PROJ.5.1.0 (https://proj4.org/) software was used to project WGS84 latitude and longitude coordinates to Universal Transverse Mercator (UTM) northings and eastings (WGS84, Zone 18, meters). Navigation files for each seismic line, saved by line number, were concatenated into comma-delimited text files for use with Esri ArcGIS software. The final output files are as follows: (1) 2019-332-FA.txt contains unique shotpoint positions (along each line) for the entire survey, (2) s2019-332-FA.txt includes the 1,000-shot-interval locations that were generated to correlate shot locations on the trackline map with evenly spaced 1,000-shot index markers along the top of the printable profile images, and (3) 2019-332-FA_s has the start-of-line locations for each trackline. The concatenated, comma-delimited text files were later imported into ArcGIS and saved as either a point or polyline file (in Esri's shapefile format) for use in the map document (.mxd) included in this archive.
Source_Used_Citation_Abbreviation: *_env_bp.txt, *_env_bp_mod.txt
Process_Date: 20200729
Source_Produced_Citation_Abbreviation: 2019-332-FA.txt
Source_Produced_Citation_Abbreviation: s2019-332-FA.txt
Source_Produced_Citation_Abbreviation: 2019-332-FA_s.txt
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Process_Step:
Process_Description:
Trackline map creation: 2019-332-FA_location.mxd and associated shapefiles (.shp) were created with Esri ArcGIS 10.6 software. The survey navigation file, 2019-332-FA.txt, was imported into ArcMap 10.6.0.8321 and processed using the ArcScript "Points to Lines" to create a polyline shapefile of the cruise tracklines called 2019-332-FA_trkln. The 1,000-shot-interval and start-of-line files, s2019-332-FA.txt and 2019-332-FA_s.txt, were imported into ArcMap and saved as point shapefiles. A non-proprietary version of the location map was created by utilizing the ArcToolbox "Map to KML" tool, which converted each layer included in the .mxd document to keyhole markup language (.kml) format prior to them being compressed and saved as a .kmz file. The ArcGIS and Google Earth geospatial files provided in this data release are unprojected (geographic coordinates, WGS84). For detailed information about the ArcGIS files provided in this data release, please refer to the individual metadata records (*_metadata.txt and *.shp.xml) accompanying each shapefile and the readme file included in 2019-332-FA_gis.zip.
Source_Used_Citation_Abbreviation: 2019-332-FA.txt
Source_Used_Citation_Abbreviation: s2019-332-FA.txt
Source_Used_Citation_Abbreviation: 2019-332-FA_s.txt
Process_Date: 20200729
Source_Produced_Citation_Abbreviation: 2019-332-FA_trkln.shp
Source_Produced_Citation_Abbreviation: 2019-332-FA_shots.shp
Source_Produced_Citation_Abbreviation: 2019-332-FA_sol.shp
Source_Produced_Citation_Abbreviation: 2019-332-FA.kmz
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20201110
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Arnell S. Forde
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
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: 551935
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution: 0.0197584720
Longitude_Resolution: 0.0248328387
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: 298.257223563
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2019-332-FA.txt, s2019-332-FA.txt, 2019-332-FA_s.txt
Entity_Type_Definition:
These files, which are located in 2019-332-FA_nav.zip, represent the August 2019 seismic navigation data. The attributes described below are for the survey's shotpoint navigation file, 2019-332-FA.txt. For detailed information specific to the ArcGIS data, please see the associated shapefile metadata.
Entity_Type_Definition_Source: SEG Y headers, https://seg.org/Publications/tech-stand.
Attribute:
Attribute_Label: UTMX
Attribute_Definition: UTM-X coordinate (Zone 18)
Attribute_Definition_Source: Universal Transverse Mercator Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 445722.143
Range_Domain_Maximum: 452416.263
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: UTMY
Attribute_Definition: UTM-Y coordinate (Zone 18)
Attribute_Definition_Source: Universal Transverse Mercator Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 4158363.231
Range_Domain_Maximum: 4172213.632
Attribute_Units_of_Measure: meters
Attribute:
Attribute_Label: Line
Attribute_Definition: Trackline name
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain:
The naming convention used for each subbottom profile line is as follows: FAN_Line#_env_bp or FAN_Line#_env_bp_mod, where 'FAN' is the USGS field activity number assigned to the survey (without the "-FA" suffix, for example, 2019-332), 'Line#' is a number representing a specific trackline, and '_env_bp' denotes that the seismic data were bandpass filtered then output as envelope data files. Files with "_env_bp_mod" appended to the filename used post-processed DGPS coordinates for navigation, all other files used real-time kinematic positions recorded during acquisition.
Attribute:
Attribute_Label: Shot
Attribute_Definition: Shotpoint number
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 24511
Attribute:
Attribute_Label: Lon
Attribute_Definition: Longitude (decimal degrees)
Attribute_Definition_Source: World Geodetic System 1984 Geographic Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -75.614853
Range_Domain_Maximum: -75.539711
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: Lat
Attribute_Definition: Latitude (decimal degrees)
Attribute_Definition_Source: World Geodetic System 1984 Geographic Coordinate System
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 37.570942
Range_Domain_Maximum: 37.695744
Attribute_Units_of_Measure: decimal degrees
Attribute:
Attribute_Label: YEAR
Attribute_Definition: Year of data acquisition
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2019
Range_Domain_Maximum: 2019
Attribute:
Attribute_Label: DOY:HR:MIN:SEC
Attribute_Definition: Day of year:hour:minute:second
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Day of year, hour, minute and second of data acquisition.
Overview_Description:
Entity_and_Attribute_Overview:
Binary data file: Seismic trace data are available as binary files in SEG Y format. These files have a .sgy extension and range in size from 4 to 480 MB. These data are included in the download file, 2019-332-FA_segy.zip, and can also be found by going to https://cmgds.marine.usgs.gov. The SEG Y rev. 0 format (Barry and others, 1975) data presented here consists of the following: a 3,600-byte reel identification header, with the first 3,200 bytes consisting of an ASCII header block followed by a 400-byte binary header block, both of which include information specific to line and reel number; a trace data block that follows the reel identification header, with the first 240 bytes of each trace block consisting of the binary trace identification header; and seismic data samples that follow the trace identification header.
Entity_and_Attribute_Overview:
Graphic image file: Printable versions of the processed subbottom profiles are available as GIF images and are included in the download file, 2019-332-FA_seisimag.zip.
Entity_and_Attribute_Overview:
Navigation file: Navigation files are available as ASCII text files. Provided are reprojected survey shotpoint navigation, 1,000-shot-interval locations, and start of line files. The final navigation files are provided in 2019-332-FA_nav.zip.
Entity_and_Attribute_Overview:
GIS file: The GIS data associated with this survey are provided as a compressed zip file, 2019-332-FA_gis.zip, which is composed of an Esri map document, shapefiles, individual shapefile metadata, a Google Earth KMZ file, a folder of processed profile images, and a readme file. The shapefiles provided may also be viewed using other versions of Esri desktop software including their free software Explorer for ArcGIS, which is available at https://www.esri.com/en-us/arcgis/products/explorer-for-arcgis.
Entity_and_Attribute_Detail_Citation:
The entity and attribute information were generated by the individual and/or agency identified as the originator of the dataset. Please review the rest of the metadata record for additional details and information.
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@usgs.gov
Contact_Instructions:
The SEG Y files included in this data release are also downloadable from the Coastal and Marine Geoscience Data System https://cmgds.marine.usgs.gov.
Distribution_Liability:
This publication was prepared by an agency of the United States Government. Although these data were processed successfully on a computer system at the U.S. Geological Survey, no warranty expressed or implied is made regarding the display or utility of the data on any other system, nor shall the act of distribution imply any such warranty. The U.S. Geological Survey shall not be held liable for improper or incorrect use of the data described and (or) contained herein. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: SEG Y
Format_Version_Number: Revision 0
File_Decompression_Technique: Winzip or 7zip
Transfer_Size: 7930
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-P9S75Q0U/data/2019-332-FA_segy.zip
Digital_Form:
Digital_Transfer_Information:
Format_Name: ASCII
File_Decompression_Technique: Winzip or 7zip
Transfer_Size: 6.5
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-P9S75Q0U/data/2019-332-FA_nav.zip
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile, KMZ
File_Decompression_Technique: Winzip or 7zip
Transfer_Size: 62.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-P9S75Q0U/data/2019-332-FA_gis.zip
Digital_Form:
Digital_Transfer_Information:
Format_Name: GIF
File_Decompression_Technique: Winzip or 7zip
Transfer_Size: 57.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://coastal.er.usgs.gov/data-release/doi-P9S75Q0U/data/2019-332-FA_seisimag.zip
Fees: None
Technical_Prerequisites:
Use of SEG Y data requires specialized seismic processing software, such as public domain software Seismic Unix (https://github.com/JohnWStockwellJr/SeisUnix).
Metadata_Reference_Information:
Metadata_Date: 20201110
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Arnell S. Forde
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: Mailing and physical
Address: 600 4th Street South
City: St. Petersburg
State_or_Province: FL
Postal_Code: 33701
Country: USA
Contact_Voice_Telephone: (727) 502-8000
Contact_Electronic_Mail_Address: aforde@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/spcmsc/2019-332-FA_metadata.html>
Generated by mp version 2.9.50 on Tue Sep 21 18:18:31 2021