Multibeam sonar tracklines collected in Cape Cod Bay, Massachusetts with a Reson T-20P during USGS Field Activity 2019-002-FA (Esri polyline shapefile, GCS WGS 84)

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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: Seth D. Ackerman
Publication_Date: 20220718
Title:

Multibeam sonar tracklines collected in Cape Cod Bay, Massachusetts with a Reson T-20P during USGS Field Activity 2019-002-FA (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/P99DR4PN

Publication_Information:

Publication_Place:

Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts

Publisher:

U.S. Geological Survey, Coastal and Marine Hazards and Resources Program

Online_Linkage: https://doi.org/10.5066/P99DR4PN
Online_Linkage:

https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P99DR4PN/

Larger_Work_Citation:

Citation_Information:

Originator: Seth D. Ackerman
Originator: David S. Foster
Originator: Brian D. Andrews
Originator: William W. Danforth
Originator: Wayne E. Baldwin
Originator: Emily C. Huntley
Originator: Charles R. Worley
Originator: Laura L. Brothers
Publication_Date: 2022
Title:

High-resolution geophysical and geological data collected in Cape Cod Bay, Massachusetts during USGS Field Activities 2019-002-FA and 2019-034-FA

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P99DR4PN

Publication_Information:

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

Other_Citation_Details:

Suggested citation: Ackerman, S.D., Foster, D.S., Andrews, B.D., Danforth, W.W., Baldwin, W.E., Huntley, E.C., Worley, C.R., and Brothers, L.L., 2022, High-resolution geophysical and geological data collected in Cape Cod Bay, Massachusetts during USGS Field Activities 2019-002-FA and 2019-034-FA: U.S. Geological Survey data release, https://doi.org/10.5066/P99DR4PN.

Online_Linkage: https://doi.org/10.5066/P99DR4PN
Online_Linkage:

https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P99DR4PN/

Description:

Abstract:

Accurate data and maps of sea floor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes due to natural or human impacts. To address these concerns the U.S. Geological Survey, in cooperation with the Massachusetts Office of Coastal Zone Management (CZM), comprehensively mapped the Cape Cod Bay sea floor to characterize the surface and shallow subsurface geologic framework. Geophysical data collected include swath bathymetry, backscatter, and seismic reflection profile data. Ground-truth data, including sediment samples, underwater video, and bottom photographs were also collected. This effort is part of a long-term collaboration between the USGS and the Commonwealth of Massachusetts to map the State’s waters, support research on the Quaternary evolution of coastal Massachusetts, the influence of sea-level change and sediment supply on coastal evolution, and efforts to understand the type, distribution, and quality of subtidal marine habitats. This collaboration produces high-resolution geologic maps and Geographic Information System (GIS) data that serve the needs of research, management and the public. Data collected as part of this mapping cooperative continue to be released in a series of USGS Open-File Reports and Data Releases (https://www.usgs.gov/centers/whcmsc/science/geologic-mapping-massachusetts-seafloor). This data release provides the geophysical and geologic sampling data collected in Cape Cod Bay during USGS Field Activities 2019-002-FA and 2019-034-FA in 2019.

Purpose:

This dataset contains a polyline shapefile representing the trackline navigation for approximately 4912 kilometers of multibeam echo sounder bathymetry and backscatter data collected by the U.S. Geological Survey during survey 2019-002-FA in Cape Cod Bay, Massachusetts. This information can help spatially correlate the bathymetry and backscatter data with other geophysical data.

Supplemental_Information:

Support for 2019-002-FA was provided to the USGS from the Massachusetts Office of Coastal Zone Management. Additional information on the field activities associated with this project are available at https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-002-FA and https://cmgds.marine.usgs.gov/fan_info.php?fan=2019-034-FA.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20190801
Ending_Date: 20190829

Currentness_Reference:

data were collected on the following dates: 20190801-20190829 (Julian day 213-241).

Status:

Progress: Complete
Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.51046787
East_Bounding_Coordinate: -70.10421171
North_Bounding_Coordinate: 42.03046465
South_Bounding_Coordinate: 41.74782158

Keywords:

Theme:

Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:e46240a4-c1fc-47ea-93f5-b7111de59e60

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: Massachusetts Office of Coastal Zone Management
Theme_Keyword: CZM
Theme_Keyword: MassCZM
Theme_Keyword: field activity number 2019-002-FA
Theme_Keyword: field activity number 2019-034-FA
Theme_Keyword: M/V Warren Jr
Theme_Keyword: shapefile
Theme_Keyword: multibeam echo sounder
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:

Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: multibeam sonar
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: Cape Cod Bay
Place_Keyword: Cape Cod
Place_Keyword: Massachusetts
Place_Keyword: Gulf of Maine

Stratum:

Stratum_Keyword_Thesaurus: None
Stratum_Keyword: sea floor
Stratum_Keyword: seafloor

Temporal:

Temporal_Keyword_Thesaurus: none
Temporal_Keyword: 2019

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 dataset.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Seth Ackerman
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
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name:

https://cmgds.marine.usgs.gov/data-releases/media/2021/10.5066-P99DR4PN/11617ca507e24b7a98dd27b01709e16a/2019-002-FA_T20P_Tracklines_browse.jpg

Browse_Graphic_File_Description:

Thumbnail image of multibeam echo sounder tracklines collected in Cape Cod Bay, Massachusetts.

Browse_Graphic_File_Type: JPEG

Data_Set_Credit:

The authors acknowledge our fellow participants of the Cape Cod Bay field activities 2019-002-FA (Walter Barnhardt, Luke Bennett, Eric Moore, Alex Nichols, Jake Fredericks, and Dan Kennedy) and 2019-034-FA (Dann Blackwood, Eric Moore, and Alex Nichols); the crew of the M/V Warren Jr and the R/V Tioga; and our sea floor mapping group onshore support team during these surveys (Jane Denny, PJ Bernard, Barry Irwin, and Emile Bergeron).

Cross_Reference:

Citation_Information:

Originator: Pendleton, E.A.
Originator: Baldwin, W.E.
Originator: Barnhardt., W.A.
Originator: Ackerman, S.D.
Originator: Foster, D.S.
Originator: Andrews, B.D.
Originator: Schwab, W.C.
Publication_Date: 2013
Title:

Shallow Geology, Sea-floor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts

Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2012-1157

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ofr20121157

Cross_Reference:

Citation_Information:

Originator: Andrews, B.D.
Originator: Ackerman, S.D.
Originator: Baldwin, W.E.
Originator: Barnhardt, W.A.
Publication_Date: 2010
Title:

Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts

Edition: 1.0
Geospatial_Data_Presentation_Form: raster digital data
Series_Information:

Series_Name: Open-File Report
Issue_Identification: 2010-1006

Publication_Information:

Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: https://doi.org/10.3133/ofr20101006

Cross_Reference:

Citation_Information:

Originator: Seth D. Ackerman
Originator: David S. Foster
Originator: William W. Danforth
Originator: Emily C. Huntley
Publication_Date: 2019
Title:

High-resolution geophysical and sampling data collected off Town Neck Beach in Sandwich, Massachusetts, 2016

Edition: 1.0
Series_Information:

Series_Name: data release
Issue_Identification: DOI:10.5066/P9HZHXXV

Publication_Information:

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

Other_Citation_Details:

Suggested citation: Ackerman S.D., Foster D.S., Danforth W.W., and Huntley, E.C., 2019, High-resolution geophysical and sampling data collected off Town Neck Beach in Sandwich, Massachusetts, 2016: U.S. Geological Survey data release, https://doi.org/10.5066/P9HZHXXV.

Online_Linkage: https://doi.org/10.5066/P9HZHXXV
Online_Linkage:

https://www.sciencebase.gov/catalog/item/5c7fe3afe4b0938824443b00

Data_Quality_Information:

Logical_Consistency_Report:

Multibeam echo sounder (MBES) data were collected during 24-hour survey operations in August 2019. Acquisition may have been suspended briefly during file changes or for longer periods during turns and system calibration, malfunction, or troubleshooting system issues. Any gaps between the polyline features in this shapefile reflect those time periods where data were not recorded.
This trackline shapefile was generated from the bathymetry data processed in Computer Aided Resource Information System (CARIS) Hydrographic Information Processing System (HIPS; version 11.3) using the Hysweep HSX raw sonar files. Note that backscatter imagery (processed in QPS FMGT version 7.8.9) was created using the Reson UI s7k raw files (M_ and S_ survey lines) that were collected simultaneously with the Hysweep HSX files. This polyline shapefile only represents the HSX tracklines which are generally the same extent as the s7k tracks. The s7k (M_ and S_) sonar files are mostly coincident with each other, although they can become unsynchronized. The small timing offset only affects the timing of survey file changes and the resulting line names, not the quality of the data.

Completeness_Report:

Data were collected on the following dates: 20190801-20190829 (Julian day 213-241); bathymetry data from 20190801 (Julian day 213) and 20190827 (Julian day 239) includes data processed for performing the patch test to calibrate the multibeam sonar but these data were not incorporated into the final bathymetry dataset or the backscatter mosaic. Data collected during some turns and along lines that extend beyond the area of a continuous geophysical survey data were also excluded from the final bathymetry dataset and backscatter mosaic. However, the patch test tracklines and tracklines that extend beyond the survey area are all included in this shapefile.

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 midships on the port side of vessel. DGPS positions are horizontally accurate to 0.5 - 2 meters, but accuracy improves 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 MBES data in HSX format
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: 20190801
Ending_Date: 20190829

Source_Currentness_Reference: ground condition

Source_Citation_Abbreviation:

Reson T20P multibeam echo sounder raw bathymetry and backscatter

Source_Contribution:

Multibeam echo sounder (MBES) bathymetry and backscatter data were collected using dual-head Reson T20-P sonars aboard the M/V Warren Jr. The system was pole-mounted on the port side of the vessel with the transducers located approximately 4.13 m below the waterline when deployed. Vessel navigation and attitude data were acquired using an Applanix POS MV Wavemaster (model 220, V5). An AML Micro X SV mounted on the sonar bracket monitored sound speed near the sonars during acquisition, and an AML MVP30 moving vessel profiler (MVP) or an AML Minos X sound velocity profiler (SVP) was deployed from the stern of the vessel to collect water column sound speed profiles at 1 to 4 hour intervals while underway (See shapefile 2019-002-FA_MVPSVP_data.shp available from the larger work citation). The Reson SeaBat User Interface (version 5.0.0.6) was used to control the sonars, as well as to monitor and record the sonar data. Hypack/Hysweep (version 2019, 19.X.X.X) was also used for record and monitor the sonar data. The SeaBat User Interface logged the navigation, attitude, bathymetry, time-series backscatter, and water column data to s7k format files for each sonar. The line files were created by the Reson UI using the following naming convention: YYYYMMDD_HHMMSS_M/S. The line files were appended with a "M" or "S" suffix to denote the port (primary) and starboard (or secondary) sonar heads, respectively. Hypack Hysweep 2019 also was used to log the navigation, attitude, and bathymetry data for both sonars to a single HSX format file. Hypack Hysweep filenames have the format 'YYYYMMDD_HHMMSS_LLL_HHMM', which prepends the Reson filename (YYYYMMDD_HHMMSS) to the Hypack Hysweep filename (LLL_HHMM), where LLL indicates the three digit planned line number and HHMM is the UTC time. The Hysweep HSX data were used to produce the final processed bathymetry grid. The Reson SeaBat User Interface s7k data were used to produce the final processed backscatter mosaic. This dataset was created from the Hysweep HSX data in CARIS HIPS (version 11.3).

Process_Step:

Process_Description:

PROCESSING STEP 1: CARIS HIPS DATA PROCESSING. Multibeam bathymetry processing within CARIS HIPS (version 11.3) post-survey consisted of the following flow:
1) A vessel configuration file was created in CARIS for the HSX sonar files (WarrenJrHSX_4-24-2020.hvf) which included relevant, linear and angular installation offsets for each T20-P unit as well as vendor specified uncertainty values for each of the survey sensors.
2) A CARIS HIPS project (version 11.3) was created with projection information set to Universal Transverse Mercator (UTM) Zone 19N, WGS84 using the vessel configuration file from step 1.
3) Each HSX file was imported to the new CARIS project 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.
5) 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.
6) Navigation source was set to Applanix SBET, and navigation was reviewed and edited as needed using the Navigation Editor tool.
7) Georeference Bathymetry was done to apply the sound velocity corrections from the final SVP file (2019-002-FA_SVP_MASTER_v2.svp) containing all the sound velocity profiles collected during the survey, specifying the nearest in time method, delayed heave source, and use surface sound speed.
8) 5-m resolution Swath Angle Weighted (SWATH) surfaces were created to incorporate all the files as they were processed, and the SWATH surfaces were reviewed for inconsistencies and anomalies.
9) The swath and subset editors were used to remove spurious points through manual editing and filter application, and the refraction editor was used to adjust sound speed values in areas where sound velocity data did not adequately correct depth profiles, which were obviously influenced by local anomalies in speed of sound through the water column.
The steps described above were performed by Brian Andrews and Bill Danforth. The contact person for this and all subsequent processing steps below is Seth Ackerman.

Process_Date: 202005
Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Seth Ackerman
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
Country: USA

Contact_Voice_Telephone: 508-548-8700 x2315
Contact_Facsimile_Telephone: 508-457-2310
Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

PROCESSING STEP 2: EXPORT TRACKLINE NAVIGATION. All of the tracklines were selected in CARIS HIPS (version 11.3), then exported as a shapefile (File, Export, Selection, Shapefile...) using the coordinate reference system WGS 84 (EPSG:4326).

Process_Date: 202012

Process_Step:

Process_Description:

PROCESING STEP 3: SHAPEFILE ATTRIBUTE TABLE FIELD ORGANIZATION:
The trackline shapefile was loaded into an QGIS (version 3.14) project. Several fields representing CARIS HIPS processing parameters were removed. The remaining fields were renamed and reorganized using the QGIS attribute table editor into the final structure described in the Entity and Attribute information below. The QGIS tool 'Add Geometry Attributes' was used to calculate trackline length and 'Refactor' was used to set the precision for the trackline length field.

Process_Date: 20210517

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: 1097

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.000005
Longitude_Resolution: 0.000005
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: 2019-002-FA_T20P_Tracklines.shp
Entity_Type_Definition:

Shapefile of T20P multibeam echo sounder tracklines collected in Cape Cod Bay, Massachusetts during USGS Field Activity 2019-002-FA.

Entity_Type_Definition_Source: U.S. Geological Survey

Attribute:

Attribute_Label: LineName
Attribute_Definition:

Hysweep HSX filename for the T20-P MBES trackline in the format: UTC Julian date and time (DDD_NNNN_HHMM format, i.e. '221_0000_1703', where DDD is the Julian date, NNNN is an optional planning number (typically 0000) and HHMM is hour minute in UTC time).

Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values: