Multibeam echo sounder - navigation tracklines for Reson 7160 data collected during USGS field activities 2017-001-FA and 2017-002-FA.

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Metadata:

Identification_Information
Data_Quality_Information
Spatial_Data_Organization_Information
Spatial_Reference_Information
Entity_and_Attribute_Information
Distribution_Information
Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: 20200409
Title:

Multibeam echo sounder - navigation tracklines for Reson 7160 data collected during USGS field activities 2017-001-FA and 2017-002-FA.

Edition: 1.0
Geospatial_Data_Presentation_Form: vector digital data
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y1MSTN

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/P9Y1MSTN
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5e1e3815e4b0ecf25c610e23

Larger_Work_Citation:

Citation_Information:

Originator: Wayne E. Baldwin
Originator: Eric M. Moore
Originator: Charles R. Worley
Originator: Alex R. Nichols
Originator: Carolyn D. Ruppel
Publication_Date: 2020
Title:

Marine Geophysical Data Collected to Support Methane Seep Research Along the U.S. Atlantic Continental Shelf Break and Upper Continental Slope Between the Baltimore and Keller Canyons During U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA.

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9Y1MSTN

Publication_Information:

Publication_Place: Reston, VA
Publisher: U.S. Geological Survey

Other_Citation_Details:

Suggested citation: Baldwin, W.E., Moore, E.M., Worley, C.R., Nichols, A.R., and Ruppel, C.D., 2020, Marine Geophysical Data Collected to Support Methane Seep Research Along the U.S. Atlantic Continental Shelf Break and Upper Continental Slope Between the Baltimore and Keller Canyons During U.S. Geological Survey Field Activities 2017-001-FA and 2017-002-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P9Y1MSTN.

Online_Linkage: https://doi.org/10.5066/P9Y1MSTN
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5e179176e4b0ecf25c59f97a

Description:

Abstract:

In spring and summer 2017, the U.S. Geological Survey’s Gas Hydrates Project conducted two cruises aboard the research vessel Hugh R. Sharp to explore the geology, chemistry, ecology, physics, and oceanography of sea-floor methane seeps and water column gas plumes on the northern U.S. Atlantic margin between the Baltimore and Keller Canyons. Split-beam and multibeam echo sounders and a chirp subbottom profiler were deployed during the cruises to map water column backscatter, sea-floor bathymetry and backscatter, and subsurface stratigraphy associated with known and undiscovered sea-floor methane seeps. The first cruise, known as the Interagency Mission for Methane Research on Seafloor Seeps and designated as field activity 2017-001-FA, was conducted from May 4 to May 11, 2017, and acquired geophysical data to support remotely operated vehicle exploration of seep sites using the Global Explorer, which is operated by Oceaneering International, Inc. Geophysical operations during cruise 2017-002-FA from August 25 to September 6, 2017, were also focused on mapping water column methane plumes, sea-floor seep sites, and subseafloor strata, but primarily supported conductivity, temperature, and depth instrument deployment, surface-water methane-concentration mapping, and water-sampling operations as part of a collaborative study with the University of Rochester of the effect of methane seepage on ocean water biogeochemistry. The National Oceanic and Atmospheric Administration’s Office of Ocean Exploration and Research partially sponsored cruise 2017-001-FA, and the U.S. Department of Energy partially sponsored both cruises.

Purpose:

This dataset contains trackline navigation for approximately 412 km of Reson 7160 multibeam echo sounder bathymetry and backscatter data collected by the U.S. Geological Survey during USGS field activities 2017-001-FA and 2017-002-FA along the U.S. Atlantic continental shelf break and upper slope between Accomac and Keller Canyons. This information can help spatially correlate the bathymetry and backscatter data with other geophysical and sample data.

Supplemental_Information:

Support for 2017-001-FA was provided to the USGS by NOAA and DOE through interagency agreements 16-01118 and DE-FE0023495, respectively. Support for 2017-002-FA was provided to the USGS and the University of Rochester by DOE through interagency agreement DE-FE0026195 and grant DE-FE0028980, respectively. Additional information on the field activity is available from https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-001-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2017-002-FA. Additional information specific to the Interagency Mission for Methane Research on Seafloor Seeps is available at https://www.usgs.gov/centers/whcmsc/science/immerss-interagency-mission-methane-research-seafloor-seeps?qt-science_center_objects=0#qt-science_center_objects and https://archive.usgs.gov/archive/sites/soundwaves.usgs.gov/2017/05/outreach.html.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20170509
Ending_Date: 20170906

Currentness_Reference: ground condition

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned.

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -74.860827
East_Bounding_Coordinate: -74.022091
North_Bounding_Coordinate: 37.848654
South_Bounding_Coordinate: 35.510819

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:5e1e3815e4b0ecf25c610e23

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 Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Department of the Interior
Theme_Keyword: DOI
Theme_Keyword:

National Oceanic and Atmospheric Administration - Office of Ocean Exploration and Research

Theme_Keyword: NOAA-OER
Theme_Keyword: Department of Energy
Theme_Keyword: DOE
Theme_Keyword: University of Rochester
Theme_Keyword: field activity number 2017-001-FA
Theme_Keyword: HRS1704
Theme_Keyword: Interagency Mission for Methane Research on Seafloor Seeps
Theme_Keyword: IMMeRSS
Theme_Keyword: field activity number 2017-002-FA
Theme_Keyword: HRS1713
Theme_Keyword: R/V Hugh R. Sharp
Theme_Keyword: shapefile
Theme_Keyword: trackline navigation
Theme_Keyword: multibeam echo sounder
Theme_Keyword: multibeam bathymetry
Theme_Keyword: multibeam time-series backscatter
Theme_Keyword: Reson
Theme_Keyword: 7160
Theme_Keyword: Reson s7k format
Theme_Keyword: HYPACK HYSWEEP HSX and 7K formats

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
Theme_Keyword: geospatial datasets

Place:

Place_Keyword_Thesaurus: None
Place_Keyword: United States of America
Place_Keyword: Atlantic Ocean
Place_Keyword: Atlantic Margin
Place_Keyword: Accomac Canyon
Place_Keyword: Washington Canyon
Place_Keyword: Norfolk Canyon
Place_Keyword: Keller Canyon
Place_Keyword: Chincoteague Ridge

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 distributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey as the originator of the data set.

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:

https://www.sciencebase.gov/catalog/file/get/5e1e3815e4b0ecf25c610e23/?name=2017-001-FA_2017-002-FA_7160Tracklines_browse.jpg

Browse_Graphic_File_Description: Multibeam echo sounder tracklines around Keller Canyon.
Browse_Graphic_File_Type: JPG

Cross_Reference:

Citation_Information:

Originator: Demopoulos, A.
Originator: McClain-Counts, J.
Originator: Bourque, J.
Originator: Prouty, N.
Originator: Smith, B.
Originator: Brooke, S.
Originator: Ross, S.
Originator: Ruppel, C.
Publication_Date: 2019
Title:

Examination of Bathymodiolus childressi nutritional sources, isotopic niches, and food-web linkages at two seeps in the US Atlantic margin using stable isotope analysis and mixing models.

Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:

Series_Name: Deep Sea Research Part I
Issue_Identification: 148, pp.53-66

Publication_Information:

Publication_Place: Amsterdam, Netherlands
Publisher: Elsevier

Online_Linkage: https://doi.org/10.1016/j.dsr.2019.04.002

Cross_Reference:

Citation_Information:

Originator: Leonte, M.
Originator: Ruppel, C. D.
Originator: Ruiz‐Angulo, A.
Originator: Kessler, J. D.
Publication_Date: 2020
Title:

Surface methane concentrations along the Mid‐Atlantic Bight driven by aerobic subsurface production rather than seaﬂoor gas seeps.

Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:

Series_Name: Journal of Geophysical Research: Oceans
Issue_Identification: vol. 125

Publication_Information:

Publication_Place: Washington, DC
Publisher: American Geophysical Union Publications

Online_Linkage: https://doi.org/10.1029/2019JC015989

Cross_Reference:

Citation_Information:

Originator: Ruppel, C.
Originator: Demopoulos, A.
Originator: Prouty, N.
Publication_Date: 2018
Title:

Exploring US Mid-Atlantic Margin Methane Seeps: IMMeRSS, May 2017.

Edition: 1.0
Geospatial_Data_Presentation_Form: document
Series_Information:

Series_Name: Supplement to Oceanography
Issue_Identification: 31(1), p.93

Publication_Information:

Publication_Place: Rockville, MD
Publisher: The Oceanography Society

Online_Linkage: https://doi.org/10.5670/oceanog.2018.supplement.01

Data_Quality_Information:

Logical_Consistency_Report:

Multibeam echo sounder (MBES) data were primarily collected overnight (between approximately 24:00 and 10:00 UTC) during field activities 2017-001-FA and 2017-002-FA. Raw MBES data were recorded in both the Reson SeaBat User Interface (s7k format) and HYPACK HYSWEEP (HSX and 7K pair file formats) acquisition software. Reson s7k files contain seafloor bathymetry and backscatter and uncompressed water column backscatter data, while HYPACK HYSWEEP HSX and 7K paired files contain seafloor bathymetry and backscatter, respectively. The additional volume of water column data saved to the s7k raw files resulted in a greater number than the HSX/7K pair files; one HSX/7K pair encompasses the same coverage as one or more s7k files. Reson s7k files were primarily used for bathymetry and backscatter processing, but problems with navigation and telemetry during acquisition made the use of several HSX files necessary because the problems did not affect HYPACK HYSWEEP acquisition. The column "LineName" in the attribute table of '2017-001-FA_2017-002-FA_7160Tracklines.shp' indicates the file type used for processing; Reson s7k filenames have the Reson SeaBat User Interface default format 'YYYYMMDD_HHMMSS' indicating UTC start date and time; HYPACK HYSWEEP filenames have the format 'YYYYMMDD_HHMMSS_LLL_HHMM', which prepends the Reson filename (for the first equivalent file encompassed by the corresponding HYPACK HYSWEEP file) to the HYPACK HYSWEEP filename, which indicates the three digit planned line number and the UTC time. Navigation for each of the file formats is identical (though files may differ in start or end times by several seconds) and polylines included in '2017-001-FA_2017-002-FA_7160Tracklines.shp' are indicative of all data used for processing.

Completeness_Report:

This shapefile includes trackline navigation for all multibeam echo sounder data collected during field activities 2017-001-FA and 2017-002-FA, except for those collected during troubleshooting of MBES system navigation and telemetry problems conducted on May 4 (JD124) 13:10 - 13:25 UTC, May 7 (JD127) 05:21 - 05:39, and May 8 (JD128) 03:37 - 08:57. While the line navigation for all the data are included in this shapefile, the final bathymetry grids or backscatter mosaics may not include all data from all lines.

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 System (GNSS) and acceleration data from an Inertial Motion Unit (IMU) and GPS azimuthal heading. The POS MV was configured with two Trimble GPS antennas located at either end of a 2-m baseline, which was oriented fore and aft and mounted atop the MBES pole just aft of the bosun's locker on the port side of vessel. GPS 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. Positions from the POS MV are assumed to be horizontally accurate to 3 meters.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey
Publication_Date: Unpublished Material
Title: raw multibeam echo sounder 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: 20170509
Ending_Date: 20170906

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation: Reson 7160 multibeam echo sounder data
Source_Contribution:

Multibeam echo sounder seafloor bathymetry and backscatter and water column backscatter data were collected using a Reson 7160 (44 kHz center frequency, 512 beams, 1.5 x 2 degree across- and along-track beam widths, respectively). The Mills Cross transmit and receive transducer arrays were pole-mounted on the port side of the R/V Hugh R Sharp just aft of the Bosun's locker with the transducers positioned approximately 2.8 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 Trimble GPS antennas located at either end of a 2-m baseline oriented fore and aft and mounted atop the MBES pole, and the wet pod IMU mounted atop the sonar bracket just aft of the pole. An AML Micro X SV mounted on the sonar bracket monitored sound speed in water near the sonar during acquisition, and water column sound speed profiles were collected using Sippican T4 and T5 Expendable Bathythermograph probes and Seabird Electronics 911plus CTD casts at various points during both cruises (see shapefile '2017-001-FA_2017-002-FA_SVPdata.shp' available from the larger work citation). The Reson SeaBat User Interface (version 4.0.0.10) was used to control the sonar, which was operated primarily in FM mode at various power levels throughout the cruises. The range of the 512 across-track beams formed by the sonars were adjusted manually depending on water depth. Data were monitored and recorded using the Reson SeaBat User Interface (version 4.0.0.10) and HYPACK HYSWEEP (version 2017, 17.1.3.0). The SeaBat User Interface logged navigation, attitude, bathymetry, time-series backscatter, and water column data to s7k format files. HYPACK HYSWEEP logged navigation, attitude, and bathymetry data to HSX format files, and navigation, attitude, and time series backscatter data to 7K format files. Patch test calibrations were performed during each field activity to determine possible misalignments between the MBES and POS MV reference frames or systematic timing latencies.

Process_Step:

Process_Description:

Shipboard multibeam processing within Computer Aided Resource Information System (Caris) Hydrographic Information Processing System (HIPS; version 9) consisted of the following flow:
1) Caris HIPS projects were created to process 7160 data. Projection information was set to Universal Transverse Mercator (UTM) Zone 18N, WGS 84.
2) Vessel configuration files were created in the Caris projects for the R/V Hugh R. Sharp, which included relevant linear and angular installation offsets for the 7160 installation 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 and navigation data (navigation only loaded for HSX data used from JD238 of 2017-002-FA) from raw POS MV files were used to update HIPS survey lines using the import auxiliary data function.
5) Navigation was reviewed and edited as needed using the Navigation Editor tool.
This process step and all subsequent process steps were conducted by Eric Moore and Wayne Baldwin, though Baldwin is listed as the contact.

Process_Date: 2017
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:

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) Navigation for each line in Caris HDCS directory was extracted using the Caris program printfNav. (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) A Python script (pySQLBathNav) parsed each printfNav output file, to remove rejected navigation records, and add accepted records as point geometries to a geospatial SQLite database (which was created if it did not already exist). Additional fields for survey ID, vessel name, and system name were added during parsing. Polyline geometries were created from the point geometries for each survey line, using UTC time as the sort order field, and fields for JD

Process_Date: 201806

Process_Step:

Process_Description:

Create Esri shapefile containing the polyline data:
The polyline features for each field activity were added (Add Data) into ArcMap (version 10.7.1) from the SQLite database, then exported (Right click on database feature class > Data > Export Data) to the new Esri polyline shapefiles 2017-001-FA_7160Tracklines.shp and 2017-002-FA_7160Tracklines.shp. The ArcGIS process 'Merge' was used to combine both trackline datasets into the single shapefile 2017-001-FA_2017-002-FA_7160Tracklines.shp

Process_Date: 201911

Process_Step:

Process_Description:

Added keywords section with USGS persistent identifier as theme keyword.

Process_Date: 20200806
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: 1108

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: 2017-001-FA_2017-002-FA_7160Tracklines
Entity_Type_Definition:

Reson 7160 multibeam echo sounder tracklines for USGS field activities 2017-001-FA and 2017-002-FA along the U.S. Atlantic continental shelf break and upper slope between Accomac and Keller Canyons.

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:

Reson SeaBat User Interface s7k or HYPACK HYSWEEP HSX/7K pair filename for the 7160 MBES trackline. See logical consistency report for naming format description.

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values: