Multibeam Echosounder, Reson T-20P tracklines, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (Esri polyline shapefile, GCS WGS 84)

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: 2018
Title:
Multibeam Echosounder, Reson T-20P tracklines, USGS field activity 2017-003-FA, Mississippi River Delta front offshore of southeastern Louisiana (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/F7X929K6
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/F7X929K6
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Wayne E. Baldwin
Originator: Seth D. Ackerman
Originator: Charles R. Worley
Originator: William W. Danforth
Originator: Jason D. Chaytor
Publication_Date: 2018
Title:
High-resolution geophysical data collected along the Mississippi River Delta front offshore of southeastern Louisiana, U.S. Geological Survey Field Activity 2017-003-FA
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/F7X929K6
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Baldwin, W.E., Ackerman, S.D., Worley, C.R., Danforth, W.W., and Chaytor, J.D, 2018, High-resolution geophysical data collected along the Mississippi River Delta front offshore of southeastern Louisiana, U.S. Geological Survey Field Activity 2017-003-FA: U.S. Geological Survey data release, https://doi.org/10.5066/F7X929K6.
Online_Linkage: https://doi.org/10.5066/F7X929K6
Online_Linkage:
Description:
Abstract:
High resolution bathymetric, sea-floor backscatter, and seismic-reflection data were collected offshore of southeastern Louisiana aboard the research vessel Point Sur on May 19-26, 2017, in an effort to characterize mudflow hazards on the Mississippi River Delta front. As the initial field program of a research cooperative between the U.S. Geological Survey, the Bureau of Ocean Energy Management, and other Federal and academic partners, the primary objective of this cruise was to assess the suitability of sea-floor mapping and shallow subsurface imaging tools in the challenging environmental conditions found across delta fronts (for example, variably distributed water column stratification and widespread biogenic gas in the shallow subsurface). Approximately 675 kilometers (km) of multibeam bathymetry and backscatter data, 420 km of towed chirp data, and 550 km of multichannel seismic data were collected. Varied mudflow (gully, lobe), prodelta morphologies, and structural features were imaged in selected survey areas from Pass a Loutre to Southwest Pass.
Purpose:
This dataset contains trackline navigation for approximately 675 km of multibeam echosounder bathymetry and backscatter data collected by the U.S. Geological Survey during cruise 2017-003-FA along the Mississippi River Delta front offshore of southeastern Louisiana. This information can help spatially correlate the bathymetry and backscatter data with other with other geophysical and sample data.
Supplemental_Information:
Additional information on the field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-003-FA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20170521
Ending_Date: 20170526
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned.
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -89.554925
East_Bounding_Coordinate: -88.862743
North_Bounding_Coordinate: 29.429651
South_Bounding_Coordinate: 28.776182
Keywords:
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5a946c1ae4b069906068fb8a
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: Bureau of Ocean Energy Management
Theme_Keyword: BOEM
Theme_Keyword: field activity number 2017-003-FA
Theme_Keyword: shapefile
Theme_Keyword: trackline navigation
Theme_Keyword: multibeam echosounder
Theme_Keyword: multibeam bathymetry
Theme_Keyword: multibeam backscatter
Theme_Keyword: Reson
Theme_Keyword: T20P
Theme_Keyword: bathymetry
Theme_Keyword: backscatter
Theme_Keyword: Marine Geology
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: location
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: multibeam sonar
Theme_Keyword: bathymetry
Theme_Keyword: sea-floor acoustic reflectivity
Theme_Keyword: marine geophysics
Theme_Keyword: marine geology
Theme_Keyword: navigational data
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Gulf of Mexico
Place_Keyword: Mississippi River Delta front
Place_Keyword: Southwest Pass
Place_Keyword: South Pass
Place_Keyword: Southeast Louisiana
Place_Keyword: Pass a Loutre
Stratum:
Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sea floor
Stratum_Keyword: seafloor
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: 2017
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_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne E. Baldwin
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: Massachusetts
Postal_Code: 02543-1598
Country: US
Contact_Voice_Telephone: 508-548-8700 x2226
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: wbaldwin@usgs.gov
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Thumbnail image of multibeam echosounder tracklines from the Mississippi River Delta front offshore of southeastern Louisiana.
Browse_Graphic_File_Type: JPEG
Data_Quality_Information:
Logical_Consistency_Report:
Multibeam echosounder (MBES) data were collected almost continuously throughout the cruise, but acquisition was suspended briefly during file changes or for longer periods during turns and system calibration, malfunction, or troubleshooting. Gaps between the polyline features in this shapefile reflect those time periods where data were not recorded or were held from publication. The columns "LineName" and "LineName7k" in the attribute table contain the filenames for equivalent MBES files recorded in the HYPACK HYSWEEP (HSX format) and ResonUI (s7k format) acquisition software, respectively. Navigation for each of the file formats is identical (though files may differ in start or end times by several seconds) and represented by a single polyline. In some instances, loading of the POSPac SBET data necessitated splitting the HIPS survey lines due to small gaps in the post-processed data; e.g. a and b files for 329_0409, 326_0842, 322_1355, and 322_1935; Additionally, SBET data would not load into data from 5/21/2017 (JD141) between 02:27 and 13:08, and GPS heights were loaded from the raw POS MV files. No equivalent s7k format files were recorded for HSX lines 001_0227, 002_0242, 003_0257, or 101_1827.
Completeness_Report:
This shapefile includes trackline navigation for all the multibeam echosounder data collected during the cruise, except for the time periods 19:19 (UTC) 5/21/17 (JD141) - 02:20 5/22/17 (JD142) and 22:52 5/23/17 (JD143) - 23:03 5/23/17 (JD143), which were held from publication at the request of a cooperating agency. While the line navigation for all the data are included in this shapefile, all the data are not included in the final bathymetry grids or backscatter mosaics.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Navigation data were acquired using the WGS 84 coordinate system with an Applanix POS MV Wavemaster (model 220, V5), which blends Global Navigation Satellite Systems (GNSS) with acceleration data from a Motion Reference Unit (MRU) and GPS azimuthal heading. The POS MV was configured with two AeroAntenna Technologies GPS antennas located at either end of a 2-m baseline, which was oriented fore and aft and mounted atop the MBES pole, approximately amidships on the starboard side of vessel. DGPS positions were obtained from the primary antenna located on the forward end of the baseline, and the positional offsets between the antenna and the navigational reference point (the POS MV IMU) were accounted for in the Applanix POSView (version 8.60) acquisition software. DGPS positions are horizontally accurate to 0.5 - 2 meters, but accuracy can increase to less than 10 cm after post-processing with Applanix POSPac (version 8.1).
Lineage:
Source_Information:
Source_Citation:
Citation_Information:
Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: raw multibeam echosounder data
Geospatial_Data_Presentation_Form: digital data
Type_of_Source_Media: disc
Source_Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 20170521
Ending_Date: 20170526
Source_Currentness_Reference: ground condition
Source_Citation_Abbreviation: Reson T20P multibeam echosounder data
Source_Contribution:
Multibeam echosounder bathymetry, backscatter, and water column data were collected using dual Reson T20P MBES. The pair of Mills Cross transmit and receive arrays were placed side-by-side within a bracket that oriented them at opposing 30 degree angles (relative to horizontal). The bracket was pole-mounted on the starboard side of the R/V Point Sur so that the sonar arrays were oriented athwart ships (primary and secondary arrays facing outward and down to port and starboard, respectively) and located approximately 3.04 m below the waterline when deployed. Vessel navigation and attitude data were acquired with an Applanix POS MV Wavemaster (model 220, V5) configured with two AeroAntenna Technologies GPS antennas located at either end of a 2-m baseline, which was oriented fore and aft and mounted atop the MBES pole approximately amidships on the starboard side of vessel, and the wet pod MRU mounted atop the sonar bracket just aft of the pole. An AML Micro X SV mounted on the sonar bracket monitored sound speed near the sonars during acquisition, and an ODIM MVP30 moving vessel profiler (MVP), mounted on the stern, was used to collect water column sound speed profiles at 1 to 5 hour intervals while underway (See shapefile 2017-003-FA_MVPdata.shp available from the larger work citation). The Reson SeaBat User Interface (version 5.0.0.6) was used to control the sonars, which were operated in intermediate mode at full power (220 db), with frequency modulated pulses between 200 to 300 kHz. The range of the 1024 across track beams formed by the sonars were adjusted manually depending on water depth, and resulted in combined swath widths of 60 to 500 meters or typically 3 to 6 times the water depth. Data were monitored and recorded using the Reson SeaBat User Interface (version 5.0.0.6) and HYPACK/HYSWEEP (version 2017, 17.1.3.0). The SeaBat User Interface logged the navigation, attitude, bathymetry, time-series backscatter, and water column data to s7k format files for each sonar. HYSWEEP logged the navigation, attitude, and bathymetry data for both sonars to a single HSX format file, the time series backscatter data for both sonars to a single 7k format file, and water column data to 7k format files for each sonar. HYPACK HSX data were used to produce the final processed bathymetry grids, and Reson SeaBat User Interface s7k data were used to produce the final processed backscatter mosaics.
Process_Step:
Process_Description:
Shipboard multibeam processing within Caris HIPS (version 10.2) consisted of the following flow:
1) Caris HIPS projects (version 10.2) were created to process T20P data in the HSX and s7k formats. Projection information was set to Universal Transverse Mercator (UTM) Zone 16N, WGS 84 in each.
2) Vessel configuration files were created in each Caris project for the R/V Point Sur, which included relevant linear and angular installation offsets for each T20P unit as well as vendor specified uncertainty values for each of the survey sensors.
3) Raw files were imported to the Caris projects using the Import/Conversion Wizard.
4) Delayed heave data from raw POS MV files were used to update HIPS survey lines using the import auxiliary data function.
This process step and all subsequent process steps were conducted by the same person - Wayne Baldwin.
Process_Date: 20175
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne Baldwin
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:
Post-cruise processing within Caris HIPS (version 10.4) consisted of the following flow:
1) Post-processed navigation, vessel attitude, and GPS height data from POSPac SBET files, and post-processed rms attitude error data from POSPac smrmsg files were used to update HIPS survey lines using the import auxiliary data function (In some instances, loading of the POSPac SBET data necessitated splitting the HIPS survey lines due to small gaps in the post-processed data; e.g. a and b files for 329_0409, 326_0842, 322_1355, and 322_1935; Additionally, SBET data would not load into data from 5/21/2017 (JD141) between 02:27 and 13:08, and GPS heights were loaded from the raw POS MV files).
2) Where applicable, lines were updated with Applanix SBET set as the navigation source, and navigation was reviewed and edited as needed using the Navigation Editor tool.
Process_Date: 201711
Process_Step:
Process_Description:
Use AWK, Python, and Shell scripts to extract and reformat the navigation fixes stored in the Caris HIPS database and add them to a geospatial SQLite (version 3.21.0) database:
1) Extract navigation for each line in Caris HDCS directory using the Caris program printfNav for all the lines. (Extracted navigation file is tab-delimited in format YYYY-JD HH:MM:SS:FFF DD.LAT DD.LONG SSSSS_VVVVV_YYYY-JD_LLLL AR where YYYY=year, JD=Julian Day, HH=hour, MM=minute, SS=seconds, FFF=fractions of a second, DD.LAT=latitude in decimal degrees, DD.LONG=longitude in decimal degrees, SSSSS=survey name, VVVVV=vessel name, LLLL=linename, AR=accepted or rejected navigation fix). This step creates the directory of TXT navigation files for each survey line in the Caris project
2) The output TXT files from the printfNav process are parsed to remove rejected navigation records then reformatted into CSV files containing additional fields for survey ID, vessel name, and system name using Shell and AWK scripts
3) A Python script (pySQLBathNav) runs on each reformatted CSV file parsing the file from each record and adding points to a SQLite database (which is created if it does not already exist). The pySQLBathNav script creates both point and polyline navigation for each survey line.
Process_Date: 201712
Process_Step:
Process_Description:
Create Esri shapefile containing the polyline data:
The T20P polyline features were added (Add Data) into ArcMap (version 10.3.1) from the SQLite database, then exported (Right click on database feature class > Data > Export Data) to the new Esri polyline shapefile 2017-003-FA_T20P_Tracklines.shp
Process_Date: 201712
Process_Step:
Process_Description:
Create field for Reson SeaBat User Interface s7k filenames in shapefile attribute table:
A new attribute field named "LineName7k" was added to the shapefile attribute table and manually populated with the name of the Reson SeaBat User Interface s7k filename corresponding to the Hypack Hysweep HSX file listed in the "LineName" field.
Process_Date: 201712
Process_Step:
Process_Description:
Rename shapefile attribute table fields:
XTools Pro (version 12.0) for ArcGIS desktop was used (TABLE OPERATIONS - TABLE RESTRUCTURE) to rename some attribute field headings in the polyline shapefile's attribute table. 'Year_JD_ini' was changed to 'YJD_start', 'JD_UTC_ini' was changed to 'JDUT_start', 'Year_JD_end' was changed to 'YJD_end', and 'JD_UTC_end' was changed to 'JDUT_end'. The remaining field headers were unchanged.
Process_Date: 201712
Process_Step:
Process_Description:
Added keywords section with USGS persistent identifier as theme keyword.
Process_Date: 20200807
Process_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: VeeAnn A. Cross
Contact_Position: Marine Geologist
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543-1598
Contact_Voice_Telephone: 508-548-8700 x2251
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: vatnipp@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: 138
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: 2017-003-FA_T20P_Tracklines
Entity_Type_Definition:
T20P multibeam echosounder tracklines for survey 2017-003-FA along the Mississippi River Delta front.
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: LineName
Attribute_Definition:
HYPACK HYSWEEP HSX filename for the T20P MBES trackline in the format: HYSWEEP planned line number (i.e. '001_') + UTC start time (HHMM format, i.e. '0227'). These lines were used for bathymetry data processing.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: LineName7k
Attribute_Definition:
Reson SeaBat User Interface s7k filename for the T20P MBES trackline in the format: UTC start date and time (YYYYMMDD_HHMMSS format, i.e. '20170521_035424'). The actual files names for the primary and secondary T20P units are prepended with 'M_' or 'S_', respectively. #N/A indicated no Reson s7k file was recorded. These lines were used for backscatter data processing.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: YJD_start
Attribute_Definition:
Year and Julian date at the start of the survey line in the format: YYYY-JD; where 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. In the case of split lines (i.e. those with and "a" or "b" appended to 'LineName') YYYY-JD is accurate for the individual sections.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: JDUT_start
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. In the case of split lines (i.e. those with an "a" and "b" appended to 'LineName') JD:HH:MM:SS is accurate for the individual sections.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: YJD_end
Attribute_Definition:
Year and Julian date (YYYY-JD) at the end of the survey line. In the case of split lines (i.e. those with and "a" or "b" appended to 'LineName') YYYY-JD is accurate for the individual sections.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: JDUT_end
Attribute_Definition:
Julian day and UTC time (JD:HH:MM:SS) at the end of the survey line. In the case of split lines (i.e. those with an "a" and "b" appended to 'LineName') JD:HH:MM:SS is accurate for the individual sections.
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. "2017-003-FA" where 2017 is the survey year, 003 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 MBES data.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Unrepresentable_Domain: Character set
Attribute:
Attribute_Label: Length_km
Attribute_Definition:
Length of swath data line in kilometers (UTM Zone 16N, WGS 84) calculated in the SQLite database.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: 0.02
Range_Domain_Maximum: 14.61
Attribute_Units_of_Measure: kilometers
Attribute_Measurement_Resolution: 0.01
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: mailing and physical address
Address: Federal Center
Address: Building 810
Address: Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Resource_Description:
USGS data release 2017-003-FA multibeam echosounder trackline data from the Mississippi River Delta front area: incudes the shapefile 2017-003-FA_T20P_Tracklines.shp, the browse graphic 2017-003-FA_T20P_Tracklines_browse.jpg, and the Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata file 2017-003-FA_T20P_Tracklines_meta.xml.
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_Number: ArcMap 10.3.1
Format_Specification: Shapefile
Format_Information_Content:
Shapefile of MBES tracklines collected by the U.S. Geological Survey - Woods Hole Coastal and Marine Science Center along the Mississippi River Delta front and the associated metadata.
File_Decompression_Technique: none
Transfer_Size: 5.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link is to the page containing the data, the second link downloads all data available from the page as a zip file, and the third link is to the publication landing page.
Digital_Form:
Digital_Transfer_Information:
Format_Name: WFS
Format_Information_Content:
Shapefile 2017-003-FA_T20P_Tracklines.shp provided through a WFS (web feature service).
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the network resources accesses the data through a feature service, the second is to the page containing the data, and the third link is to the publication landing page.
Digital_Form:
Digital_Transfer_Information:
Format_Name: WMS
Format_Information_Content:
Shapefile 2017-003-FA_T20P_Tracklines.shp provided through a WMS (web mapping service).
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link in the network resources accesses the data through a mapping service, the second is to the page containing the data, and the third link is to the publication landing page.
Fees: none
Technical_Prerequisites:
To utilize these data, the user must have software capable of reading shapefile format, or GIS software capable of utilizing web mapping or feature services.
Metadata_Reference_Information:
Metadata_Date: 20240319
Metadata_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Wayne E. Baldwin
Contact_Position: Geologist
Contact_Address:
Address_Type: mailing and physical
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: whsc_data_contact@usgs.gov
Contact_Instructions:
The metadata contact email address is a generic address in the event the person is no longer with USGS. (updated on 20240319)
Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998
Metadata_Time_Convention: local time

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