Trackline navigation for EdgeTech SB-512i chirp seismic-reflection data collected in 2014 by the U.S. Geological Survey offshore of Fire Island, NY (Esri polyline shapefile, GCS WGS 84).

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2017
Title:
Trackline navigation for EdgeTech SB-512i chirp seismic-reflection data collected in 2014 by the U.S. Geological Survey offshore of Fire Island, NY (Esri polyline shapefile, GCS WGS 84).
Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7FF3QTQ
Publication_Information:
Publication_Place:
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program
Online_Linkage: https://doi.org/10.5066/F7FF3QTQ
Online_Linkage:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/
Online_Linkage:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/data/seismics/2014-009-FA_512i_Tracklines.zip
Larger_Work_Citation:
Citation_Information:
Originator: Jane F. Denny
Originator: William C. Schwab
Originator: Seth D. Ackerman
Originator: Wayne E. Baldwin
Originator: William W. Danforth
Originator: Eric Moore
Originator: Alexander Nichols
Originator: Charles Worley
Publication_Date: 2017
Title:
High-resolution geophysical and sample data collected offshore of Fire Island, NY in 2014, U.S. Geological Survey Field Activity 2014-009-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7FF3QTQ
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7FF3QTQ
Online_Linkage:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/
Description:
Abstract:
The U.S. Geological Survey (USGS) conducted a geophysical and sampling survey in October 2014 that focused on a series of shoreface-attached ridges offshore of western Fire Island, NY. Seismic-reflection data, surficial grab samples and bottom photographs and video were collected along the lower shoreface and inner continental shelf. The purpose of this survey was to assess the impact of Hurricane Sandy on this coastal region. These data were compared to seismic-reflection and surficial sediment data collected by the USGS in the same area in 2011 to evaluate any post-storm changes in seabed morphology and modern sediment thickness on the inner continental shelf. For more information about the WHCMSC Field Activity, see: https://cmgds.marine.usgs.gov/fan_info.php?fan=2014-009-FA.
Purpose:
This dataset contains trackline navigation for approximately 745 km of chirp seismic-reflection data collected by the U.S. Geological Survey during cruise 2014-009-FA offshore of Fire Island, NY. This information can help spatially correlate the subbottom data with other data in the GIS.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20141020
Ending_Date: 20141026
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -73.313743
East_Bounding_Coordinate: -72.976662
North_Bounding_Coordinate: 40.679967
South_Bounding_Coordinate: 40.593182
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: Coastal and Marine Geology Program
Theme_Keyword: CMGP
Theme_Keyword: seismic trackline navigation
Theme_Keyword: seismic reflection navigation
Theme_Keyword: field activity number 2014-009-FA
Theme_Keyword: Edgetech 512i
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: marine geology
Theme_Keyword: marine geophysics
Theme_Keyword: ocean sciences
Theme_Keyword: sub-bottom profiling
Theme_Keyword: seismic reflection methods
Theme_Keyword: survey ship tracklines
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: location
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: North America
Place_Keyword: United States
Place_Keyword: Atlantic Ocean
Place_Keyword: New York
Place_Keyword: Long Island
Place_Keyword: Fire Island
Place_Keyword: Fire Island National Seashore
Access_Constraints: none
Use_Constraints:
Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the dataset.
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x 2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/data/seismics/2014-009-FA_512i_Tracklines_browse.jpg
Browse_Graphic_File_Description:
Image showing chirp sub-bottom profiler tracklines collected by the U.S. Geological Survey on the inner-continental shelf offshore of Fire Island, NY, 2014.
Browse_Graphic_File_Type: JPEG
Cross_Reference:
Citation_Information:
Originator: Jane F. Denny
Originator: William C. Schwab
Originator: Wayne E. Baldwin
Originator: Emile Bergeron
Originator: Eric Moore
Publication_Date: 2015
Title:
High-resolution geophysical data collected offshore of Fire Island, New York in 2011, USGS Field Activity 2011-005-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F75X2704
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F75X2704
Online_Linkage:
https://cmgds.marine.usgs.gov/data/field-activity-data/2011-005-FA/
Cross_Reference:
Citation_Information:
Originator: William C. Schwab
Originator: Wayne E. Baldwin
Originator: Cheryl J. Hapke
Originator: Erika E. Lentz
Originator: Paul T. Gayes
Originator: Jane F. Denny
Originator: Jeffrey H. List
Originator: John C. Warner
Publication_Date: 2013
Title:
Geologic Evidence for Onshore Sediment Transport from the Inner Continental Shelf: Fire Island, New York
Edition: 1.0
Series_Information:
Series_Name: Journal of Coastal Research
Issue_Identification: Volume 29, Issue 3, pp. 526-544.
Publication_Information:
Publication_Place: Florida, USA
Publisher: Coastal Education and Research Foundation, Inc.
Online_Linkage: http://dx.doi.org/10.2112/JCOASTRES-D-12-00160.1
Cross_Reference:
Citation_Information:
Originator: David S. Foster
Originator: Ann B. Swift
Originator: William C. Schwab
Publication_Date: 1999
Title:
Stratigraphic Framework Maps of the nearshore area of southern Long Island from Fire Island to Montauk Point, NY
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 99-559
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/1999/of99-559/
Cross_Reference:
Citation_Information:
Originator: William C. Schwab
Originator: E. Robert Thieler
Originator: Jane F. Denny
Originator: William W. Danforth
Originator: Jenna C. Hill
Publication_Date: 2000
Title:
Seafloor sediment distribution off southern Long Island, New York
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 00-243
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2000/of00-243/
Cross_Reference:
Citation_Information:
Originator: W.C. Schwab
Originator: J.F. Denny
Originator: W.E. Baldwin
Publication_Date: 2014
Title:
Maps Showing Bathymetry and Modern Sediment Thickness on the Inner Continental Shelf Offshore of Fire Island, New York, Pre-Hurricane Sandy
Edition: 1.0
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2014-1203
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication contains the backscatter image generated from data collected during WHCMSC field activity 2011-005-FA.
Online_Linkage: https://pubs.usgs.gov/of/2014/1203/
Cross_Reference:
Citation_Information:
Originator: W.C. Schwab
Originator: W.E. Baldwin
Originator: J.F. Denny
Publication_Date: 2014
Title:
Maps Showing the Change in Modern Sediment Thickness on the Inner Continental Shelf Offshore of Fire Island, New York, Between 1996-97 and 2011
Edition: 1.0
Geospatial_Data_Presentation_Form: document and digital data for use in GIS
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 2014-1238
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://pubs.usgs.gov/of/2014/1238/
Cross_Reference:
Citation_Information:
Originator: William C. Schwab
Originator: Wayne E. Baldwin
Originator: Jane F. Denny
Originator: Cheryl J. Hapke
Originator: Paul T. Gayes
Originator: Jeffrey H. List
Originator: John C. Warner
Publication_Date: 2014
Title:
Modification of the Quaternary stratigraphic framework of the inner-continental shelf by Holocene marine transgression: An example offshore of Fire Island, New York
Edition: 1.0
Series_Information:
Series_Name: Marine Geology
Issue_Identification: Volume 355
Publication_Information:
Publication_Place: Amsterdam, Netherlands
Publisher: Elsevier B.V.
Online_Linkage: http://dx.doi.org/10.1016/j.margeo.2014.06.011
Cross_Reference:
Citation_Information:
Originator: Goff, J.A.
Originator: Flood, R.D.
Originator: Austin, J.A.
Originator: Schwab, W.C.
Originator: Christensen, B.
Originator: Browne, C.M.
Originator: Denny, J.F.
Originator: Baldwin, W.E.
Publication_Date: 2015
Title:
The impact of Hurricane Sandy on the shoreface and inner shelf of Fire Island, New York: Large bedform migration and limited erosion
Edition: 1.0
Series_Information:
Series_Name: Continental Shelf Research
Issue_Identification: V. 98, pp. 13-25
Publication_Information:
Publication_Place: Amsterdam, Netherlands
Publisher: Elsevier B.V.
Online_Linkage: http://dx.doi.org/10.1016/j.csr.2015.03.001
Cross_Reference:
Citation_Information:
Originator: Jane F. Denny
Originator: William W. Danforth
Originator: Stephen Couch
Originator: William C. Schwab
Publication_Date: 2015
Title:
Swath bathymetry collected offshore of Fire Island and western Long Island, New York in 2014, U.S. Geological Survey Field Activity 2014-072-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7C827BX
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Online_Linkage: https://doi.org/10.5066/F7C827BX
Online_Linkage:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-072-FA/

Data_Quality_Information:
Attribute_Accuracy:
Attribute_Accuracy_Report:
All attributes were evaluated during processing as standard quality control to ensure attributes contain accurate and relevant information and values.
Logical_Consistency_Report:
All subbottom data were collected during USGS cruise 2014-009-FA using an Edgetech SB-512i chirp subbottom profiler. Seismic trackline navigation was generated from unique shot navigation for the seismic system. The unique shot navigation data were evaluated during processing for spurious points; all spurious points were removed prior to generating the trackline navigation.
Completeness_Report:
Sections of tracklines where navigation was recorded but no seismic data were logged are not included such as some turns and transits. There is no line l67f1.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Differential Global Positioning System (DGPS) navigation data were acquired with an Ashtech BR2G receiver and recorded with HYPACK (www.hypack.com). The DGPS antenna was located on the aft, port-side of the acquisition van. The SB-0512i was mounted on a catamaran sled and towed at the sea surface approximately 43 m astern of the M/V Scarlett Isabella. Fish depth below water line was 0.5 meters below catamaran floats. The GPS offset from sheave was x = 8.75 m; y = -43 m; z = 0. Navigation data were sent to SonarWiz (version 5) acquisition application and offsets were recorded in the acquisitions software, which logged the coordinates to individual trace headers SEG-Y and JSF format. Layback navigation was generated to account for towfish position. Positional accuracy is assumed to be ± 10 m.** The layback routine introduces a stair-step offset in the tie-line seismic shot point and trackline navigation. This is a by-product of the moving median function and appears in the north-south oriented tie-lines. **
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: 512i trackline data
Geospatial_Data_Presentation_Form: vector digital data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20141020
Ending_Date: 20141026
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: SEG-Y and JSF 512i data
Source_Contribution:
Chirp seismic data were collected using an EdgeTech Geo-Star FSSB sub-bottom profiling system and an SB-0512i towfish (0.5-12 kHz), which was mounted on a catamaran and towed astern of the M/V Scarlett Isabella offshore of Fire Island, NY. Chesapeake Technology's SonarWiz (versions 5.00.0015 and 5.06.0058) seismic acquisition software was used to control the Geo-Star topside unit, digitally log trace data in the SEG-Y Rev. 1 format (IEEE floating point) and JSF format, and record GPS navigation coordinates to the SEG-Y trace headers (in arc seconds of Latitude and Longitude, multiplied by a scalar of 100). Data were acquired using a 250 ms shot rate, a 5-ms pulse length, and a 0.5 to 8 kHz frequency sweep. Recorded trace lengths were approximately 180 ms.
Process_Step:
Process_Description:
Scripts within SIOSEIS (version 2013.1.1) and Seismic Unix (version 4.2) were used to process SEG-Y data, create navigation files, and plot images. The processing flow and scripts used to produce navigation files including trackline shapefiles are summarized below and in the following processing steps.

1. SIOSEIS (version 2013.1.1) was used to read SEG-Y files, renumber shots starting from one, extract the envelope-detected trace, and write out new SEG-Y files. The original shot numbers, which were assigned by SonarWiz sequentially over the duration of an acquisition session despite SEG-Y file changes, are preserved in the raw SEG-Y data.

2. The SIOSEIS script Sio_medianstk applied a two-trace median stack (trim 50 percent of the values furthest from the median amplitude) to improve subsequent water bottom picking.

3. The script Read512i_mstk was used to read renumbered and two-trace median filter stacked SEG-Y files, write a Seismic Unix file, and extract SEG-Y trace header information, including shot number, longitude, latitude, year, Julian day, and time of day (UTC). Header information from each SEG-Y file was saved to text files after an AWK (no version) filter was used to maintain the first and last shots, shots at multiples of 100, 500, and shots with unique navigation coordinates. Geographic coordinates (WGS 84) were converted to UTM zone 18 N coordinates (WGS 84) using Proj (version 4.6.0). End shots and shots at multiples of 100 may not have unique navigation coordinates. Separate text files containing the first and last shots and even 500 shot intervals were also saved. A 500 shot interval was chosen because it corresponds to the annotation interval provided along the top of the seismic-reflection profile images.

Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
A Python (version 2.7) script was used to apply layback to seismic navigation acquired during the 2014-009-FA survey. Attributes oldEast and oldNorth in the table 2014-009-512i_lbunique.csv', which is included in the zip compressed version of the shapefile 2014-009-FA_512i_500sht.shp', document pre-layback shot/trace positions. Using Easting and Northing coordinates (UTM Zone 18 N, WGS84) produced in the previous step, the script calculated easting and northing differential values between consecutive trace positions. Headings between consecutive traces were calculated using the arctangent function (arctan2(dy,dx)), and reciprocal back bearings were determined using a lookup table. Back bearings were smoothed along track using a moving median function with a window length defined by the user (59 traces during 2014-009-FA). Layback easting and northing offsets were calculated by multiplying the linear distance between the catamaran and the shipboard DGPS receiver (43 m during 2014-009-FA) by the sine and cosine of the smoothed back bearing, respectively. Offset values were then added to the original coordinates to produce layback positions. ** The layback routine introduces a stair-step offset in the tie-line seismic shot point and trackline navigation. This is a by-product of the moving median function and appears in the north-south oriented tie-lines. **
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
An awk script (do_nav_gisprep) was used to process unique, 100 shot, and 500 shot lay-back corrected navigation to a merged csv file that can be utilized by ArcGIS to create a trackline and shotpoint shapefile. Text files containing unique shot point positions for each seismic line with layback-adjusted navigation were concatenated into a comma-delimited text file. Then the layback-corrected position CSV file was imported into ArcMap (version 10.2.2) using 'Add XY data' and saved as points (Geographic, WGS84) in the Esri shapefile format.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Process_Step:
Process_Description:
The shapefile containing unique shot point positions, created in the previous step, was used as an input for VACExtras points to lines (version 2.1), a VB collection of tools developed by VeeAnn Cross (USGS-WHCMSC), which converts point data to a new polyline shapefile ('2014-009-FA_512i_Tracklines.shp'), based on record order. The 'FileName' field was used to define which points were used to generate each polyline feature. Additional fields for survey ID, vessel ID, and device ID were added to the attribute table and populated using "Add Field" and "Field Calculator". Using XTools Pro (version 7.1.0) for ArcGIS desktop, the length of each polyline segment was calculated and included in the attribute field 'Length_km', specifying UTM, Zone 18 N, WGS84, and kilometers.
Process_Date: 2015
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Wayne Baldwin
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Rd.
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: (508) 548-8700 x2226
Contact_Facsimile_Telephone: (508) 457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Vector
Point_and_Vector_Object_Information:
SDTS_Terms_Description:
SDTS_Point_and_Vector_Object_Type: String
Point_and_Vector_Object_Count: 94

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: D_WGS_1984
Ellipsoid_Name: WGS_1984
Semi-major_Axis: 6378137.000000
Denominator_of_Flattening_Ratio: 298.257224

Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: 2014-009-FA_512i_Tracklines
Entity_Type_Definition:
512i tracklines for survey 2015-009-FA offshore of Fire Island, NY.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: FID
Attribute_Definition: Internal feature number.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain:
Sequential unique whole numbers that are automatically generated.
Attribute:
Attribute_Label: Shape
Attribute_Definition: Feature geometry.
Attribute_Definition_Source: Esri
Attribute_Domain_Values:
Unrepresentable_Domain: Coordinates defining the features.
Attribute:
Attribute_Label: FileName
Attribute_Definition: Seismic-reflection survey trackline file name.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: Image
Attribute_Definition:
PNG image name of seismic-reflection profile corresponding to survey line. The '_s' refers to the image file for data that has been through swell filter processing.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: Shot_ini
Attribute_Definition: Shot number at the start of the survey line.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1
Range_Domain_Maximum: 1
Attribute_Units_of_Measure: shot
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: Year
Attribute_Definition: Year at the end of the survey line.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 2014
Range_Domain_Maximum: 2014
Attribute_Units_of_Measure: year
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: JD_UTC_ini
Attribute_Definition:
Julian day and UTC time at the start of the survey line in the format: JD:HH:MM:SS; Julian day is the integer number (although recorded here in text string format) representing the interval of time in days since January 1 of the year of collection.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: Shot_end
Attribute_Definition: Shot number at the end of the survey line.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1147
Range_Domain_Maximum: 18543
Attribute_Units_of_Measure: shot
Attribute_Measurement_Resolution: 1
Attribute:
Attribute_Label: JD_UTC_end
Attribute_Definition:
Julian day and UTC time at the end of the survey line in the format: JD:HH:MM:SS; Julian day is the integer number (although recorded here in text string format) representing the interval of time in days since January 1 of the year of collection.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: SurveyID
Attribute_Definition:
WHCMSC field activity identifier (e.g. "2014-009-FA" where 2014 is the survey year, 009 is survey number of that year, and FA is Field Activity).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: VehicleID
Attribute_Definition: Survey vessel name.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: DeviceID
Attribute_Definition: Sonar device used to collect seismic-reflection data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: Length_km
Attribute_Definition:
Length of seismic-reflection data line in kilometers (UTM Zone 18N, WGS 84).
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 1.402069
Range_Domain_Maximum: 21.554634
Attribute_Units_of_Measure: kilometers
Attribute_Measurement_Resolution: 0.000001

Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x 2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Resource_Description:
USGS data release 2014-009-FA seismic-reflection data from offshore Fire Island, NY (2014-009-FA_512i_Tracklines.zip). The zip file contains the following: a shapefile (2014-009-FA_512i_Tracklines.shp and other files associated with a shapefile), a browse graphic (2014-009-FA_512i_Tracklines_browse.jpg) and Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata files (2014-009-FA_512i_Tracklines_meta.xml) in four standard formats.
Distribution_Liability:
Neither the U.S. Government, the Department of the Interior, nor the USGS, nor any of their employees, contractors, or subcontractors, make any warranty, express or implied, nor assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, nor represent that its use would not infringe on privately owned rights. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Shapefile
Format_Version_Date: ArcGIS 10.3
Format_Specification: Shapefile
Format_Information_Content:
The WinZip (version 14.0) file contains a shapefile of chirp seismic-reflection tracklines collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center offshore of Fire Island, NY in 2014 and the associated metadata.
File_Decompression_Technique: Use WinZip, 7zip, Peazip or pkUnzip
Transfer_Size: 3.1
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/data/seismics/2014-009-FA_512i_Tracklines.zip
Network_Resource_Name: https://doi.org/10.5066/F7FF3QTQ
Network_Resource_Name:
https://cmgds.marine.usgs.gov/data/field-activity-data/2014-009-FA/
Access_Instructions:
Links to the data (zip files) and the main landing pages for the data
Fees: none
Technical_Prerequisites:
This zip file contains data available in shapefile format. The user must have software capable of reading shapefile format to use these data.

Metadata_Reference_Information:
Metadata_Date: 20170505
Metadata_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jane F. Denny
Contact_Organization: U.S. Geological Survey
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical address
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543-1598
Country: USA
Contact_Voice_Telephone: 508-548-8700 x 2311
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: jdenny@usgs.gov
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

Generated by mp version 2.9.33 on Wed Jun 14 11:44:39 2017