Seth D. Ackerman
20220718
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)
1.0
vector digital data
data release
DOI:10.5066/P99DR4PN
Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
https://doi.org/10.5066/P99DR4PN
https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P99DR4PN/
Seth D. Ackerman
David S. Foster
Brian D. Andrews
William W. Danforth
Wayne E. Baldwin
Emily C. Huntley
Charles R. Worley
Laura L. Brothers
2022
High-resolution geophysical and geological data collected in Cape Cod Bay, Massachusetts during USGS Field Activities 2019-002-FA and 2019-034-FA
1.0
data release
DOI:10.5066/P99DR4PN
Reston, VA
U.S. Geological Survey
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.
https://doi.org/10.5066/P99DR4PN
https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P99DR4PN/
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.
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.
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.
20190801
20190829
data were collected on the following dates: 20190801-20190829 (Julian day 213-241).
None planned
-70.51046787
-70.10421171
42.03046465
41.74782158
USGS Metadata Identifier
USGS:e46240a4-c1fc-47ea-93f5-b7111de59e60
None
U.S. Geological Survey
USGS
Woods Hole Coastal and Marine Science Center
WHCMSC
Coastal and Marine Hazards and Resources Program
CMHRP
Department of the Interior
DOI
Massachusetts Office of Coastal Zone Management
CZM
MassCZM
field activity number 2019-002-FA
field activity number 2019-034-FA
M/V Warren Jr
shapefile
multibeam echo sounder
multibeam bathymetry
multibeam backscatter
Reson
T20P
bathymetry
backscatter
Marine Geology
ISO 19115 Topic Category
oceans
geoscientificInformation
USGS Thesaurus
multibeam sonar
marine geophysics
marine geology
navigational data
geospatial datasets
None
United States of America
Atlantic Ocean
Atlantic Margin
Cape Cod Bay
Cape Cod
Massachusetts
Gulf of Maine
None
sea floor
seafloor
none
2019
none
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.
Seth Ackerman
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2315
508-457-2310
sackerman@usgs.gov
https://cmgds.marine.usgs.gov/data-releases/media/2021/10.5066-P99DR4PN/11617ca507e24b7a98dd27b01709e16a/2019-002-FA_T20P_Tracklines_browse.jpg
Thumbnail image of multibeam echo sounder tracklines collected in Cape Cod Bay, Massachusetts.
JPEG
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).
Pendleton, E.A.
Baldwin, W.E.
Barnhardt., W.A.
Ackerman, S.D.
Foster, D.S.
Andrews, B.D.
Schwab, W.C.
2013
Shallow Geology, Sea-floor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts
Open-File Report
2012-1157
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20121157
Andrews, B.D.
Ackerman, S.D.
Baldwin, W.E.
Barnhardt, W.A.
2010
Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts
1.0
raster digital data
Open-File Report
2010-1006
Woods Hole Coastal and Marine Science Center, Woods Hole, MA
U.S. Geological Survey, Coastal and Marine Geology Program
https://doi.org/10.3133/ofr20101006
Seth D. Ackerman
David S. Foster
William W. Danforth
Emily C. Huntley
2019
High-resolution geophysical and sampling data collected off Town Neck Beach in Sandwich, Massachusetts, 2016
1.0
data release
DOI:10.5066/P9HZHXXV
Reston, VA
U.S. Geological Survey
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.
https://doi.org/10.5066/P9HZHXXV
https://www.sciencebase.gov/catalog/item/5c7fe3afe4b0938824443b00
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.
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.
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).
U.S. Geological Survey
Unpublished Material
raw MBES data in HSX format
digital data
disc
20190801
20190829
ground condition
Reson T20P multibeam echo sounder raw bathymetry and backscatter
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).
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.
202005
Seth Ackerman
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2315
508-457-2310
sackerman@usgs.gov
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).
202012
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.
20210517
Vector
string
1097
0.000005
0.000005
Decimal degrees
D_WGS_1984
WGS_1984
6378137.000000
298.257224
2019-002-FA_T20P_Tracklines.shp
Shapefile of T20P multibeam echo sounder tracklines collected in Cape Cod Bay, Massachusetts during USGS Field Activity 2019-002-FA.
U.S. Geological Survey
LineName
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).
U.S. Geological Survey
Character set
Year_JD
Year and Julian day 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.
U.S. Geological Survey
Character set
StartTime
Calendar date and UTC time at the start of the survey line in the format: YYYY-MM-DD HH:MM:SS.SSS, example "2019-08-01 23:19:13.284".
U.S. Geological Survey
Character set
EndTime
Calendar date and UTC time at the end of the survey line in the format: YYYY-MM-DD HH:MM:SS.SSS, example "2019-08-02 00:09:11.476".
U.S. Geological Survey
Character set
TotalTime
Total survey time for a particular trackline. For lines longer than 60 minutes in duration, the format is HH:MM:SS.SSS, i.e. "01:04:23.333"; lines shorter than 60 minutes are in the format MM:SS.SSS, i.e. "49:58.192"
U.S. Geological Survey
Character set
SurveyID
Woods Hole Coastal and Marine Science Center (WHCMSC) field activity identifier (e.g. "2019-002-FA" where 2019 is the survey year, 002 is survey number of that year, and FA is Field Activity).
U.S. Geological Survey
Character set
VehicleID
Survey vessel name.
U.S. Geological Survey
Character set
DeviceID
Sonar device used to collect MBES data.
U.S. Geological Survey
Character set
Length_km
Length of T20P trackline in kilometers (UTM Zone 19N, WGS 84) calculated in QGIS.
U.S. Geological Survey
0.01
28.23
kilometers
0.01
Seth Ackerman
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2315
508-457-2310
sackerman@usgs.gov
Multibeam echo sounder, Reson T-20P tracklines, collected in Cape Cod Bay, Massachusetts during USGS Field Activity 2019-002-FA: includes the shapefile 2019-002-FA_T20P_Tracklines.shp, the browse graphic 2019-002-FA_T20P_Tracklines_browse.jpg, and the Federal Geographic Data Committee (FGDC) Content Standards for Digital Geospatial Metadata (CSDGM) metadata file 2019-002-FA_T20P_Tracklines_meta.xml.
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. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), and have been processed successfully on a computer system at the USGS, no warranty expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems, nor shall the act of distribution constitute any such warranty. The USGS or the U.S. Government shall not be held liable for improper or incorrect use of the data described and/or contained herein. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
Shapefile
QGIS (version 3.14)
Shapefile
Shapefile of MBES tracklines collected in Cape Cod Bay, Massachusetts during USGS Field Activity 2019-002-FA and the associated metadata.
Use any zip decompression utility (e.g. 7zip, Keka, WinZip)
28
https://cmgds.marine.usgs.gov/data-releases/media/2021/10.5066-P99DR4PN/e6da27c653284ada90de781ea52e5a10/2019-002-FA_T20P_Tracklines.zip
https://cmgds.marine.usgs.gov/data-releases/datarelease/10.5066-P99DR4PN/
https://doi.org/10.5066/P99DR4PN
The data can be downloaded using the Network Resource Name links. The first link is a direct link to download the zipped file of data. The second and third links are to a landing page for the entire data release where the data, metadata, and browse graphic can be downloaded.
none
To utilize these data, the user must have software capable of reading shapefile format, or GIS software.
20220718
Seth Ackerman
U.S. Geological Survey
Geologist
mailing and physical address
384 Woods Hole Rd.
Woods Hole
MA
02543-1598
USA
508-548-8700 x2315
508-457-2310
sackerman@usgs.gov
Content Standards for Digital Geospatial Metadata
FGDC-STD-001-1998
local time