Swath bathymetry 13-m-cell-size grid of quadrangle 5 on Stellwagen Bank offshore of Boston, Massachusetts collected by the U.S. Geological Survey aboard the CCGS Frederick G. Creed from 1994-1996

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Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Page C. Valentine
Publication_Date: 20240320
Title:
Swath bathymetry 13-m-cell-size grid of quadrangle 5 on Stellwagen Bank offshore of Boston, Massachusetts collected by the U.S. Geological Survey aboard the CCGS Frederick G. Creed from 1994-1996
Edition: 1.0
Geospatial_Data_Presentation_Form: Raster Digital Data
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9W9BN3S
Publication_Information:
Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA
Publisher:
U.S. Geological Survey, Coastal and Marine Hazards and Resources Program
Online_Linkage: https://doi.org/10.5066/P9W9BN3S
Online_Linkage: Larger_Work_Citation:
Citation_Information:
Originator: Page C. Valentine
Originator: VeeAnn A. Cross
Publication_Date: 2024
Title:
Geospatial datasets of seabed topography, sediment mobility, and the distribution of geologic substrates in quadrangle 5 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Edition: 1.0
Series_Information:
Series_Name: data release
Issue_Identification: DOI:10.5066/P9W9BN3S
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
Suggested citation: Valentine, P.C., and Cross, V.A., 2024, Geospatial datasets of seabed topography, sediment mobility, and the distribution of geologic substrates in quadrangle 5 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts: U.S. Geological Survey data release, https://doi.org/10.5066/P9W9BN3S.
Online_Linkage: https://doi.org/10.5066/P9W9BN3S
Online_Linkage:
Description:
Abstract:
The U.S. Geological Survey (USGS), in cooperation with the National Marine Sanctuary Program of the National Oceanic and Atmospheric Administration (NOAA), has conducted seabed mapping and related research in the Stellwagen Bank National Marine Sanctuary (SBNMS) region since 1993. The interpretive datasets and source information presented here are for quadrangle 5, which is one of 18 similarly sized segments of the 3,700 square kilometer (km2) SBNMS region. The seabed of the SBNMS region is a glaciated terrain that is topographically and texturally diverse. Quadrangle 5 includes the shallow, rippled, coarse-grained sandy crest and upper eastern and western flanks of southern Stellwagen Bank, its fine-grained sandy lower western flank, and the muddy seabed in Stellwagen Basin. Water depths range from <25 m on the bank crest to ~100 m in the basin. The data presented here for quadrangle 5 are the foundation for Scientific Investigations Map 3515 (Valentine and Cross, 2024), which presents maps of seabed topography, ruggedness, backscatter intensity, distribution of geologic substrates, sediment mobility, distribution of fine- and coarse-grained sand, and substrate mud content. The maps of quadrangle 5 show the distribution of substrates across the southern part of Stellwagen Bank and the adjacent basins. Bathymetric and seabed backscatter imagery, photographs, video, and grain-size analyses were used to create the geologic interpretations presented here and have been reprocessed and released in segments to supports these interpretations. For the quadrangle 5 interpretations, data from 729 stations were analyzed, including 620 sediment samples. The seabed geology map of quadrangle 5 shows the distribution of 20 substrate types ranging from boulder ridges to mobile and rippled sand, to mud. Substrate types are defined or inferred through sediment grain-size composition, surface morphology, sediment layering, the mobility or immobility of substrate surfaces, and water depth range. Scientific Investigations Map 3515 portrays the major geological elements (substrates, topographic features, processes) of environments within quadrangle 5. It is intended to be a basis for the study of sediment transport processes that affect a shallow, offshore bank, for the study of the ecological requirements of invertebrate and vertebrate species that use these substrates, and to support seabed management in the region.
Purpose:
The purpose of this dataset is to release the 13-meter by 13-meter cell-size bathymetry grid that was used as the basis for analysis and the interpretation of quadrangle 5 of the Stellwagen Bank National Marine Sanctuary region. Additionally this dataset was used to generate subsequent datasets, some of which are released in other publications. These derivative products include datasets such as 1-m contours and terrain ruggedgness.
Supplemental_Information:
Over 50 scientific cruises have been conducted in an in an effort to map Stellwagen Bank. The bathymetry of Quadrangle 5 on Stellwagen Bank is from the following five USGS WHCMSC field activities (ship cruises): 1994-008-FA, 1995-013-FA, 1995-033-FA, 1996-032-FA, 1996-043-FA. More information on each of these activities can be found by replacing the XXXX in the following URL with the cruise ID: https://cmgds.marine.usgs.gov/fan_info.php?fan=XXXX. For example: https://cmgds.marine.usgs.gov/fan_info.php?fan=1994-008-FA.
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 1994
Ending_Date: 1996
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -70.41119
East_Bounding_Coordinate: -70.22236
North_Bounding_Coordinate: 42.32232
South_Bounding_Coordinate: 42.20281
Keywords:
Theme:
Theme_Keyword_Thesaurus: None
Theme_Keyword: U.S. Geological Survey
Theme_Keyword: USGS
Theme_Keyword: Coastal and Marine Hazards and Resources Program
Theme_Keyword: CMHRP
Theme_Keyword: Woods Hole Coastal and Marine Science Center
Theme_Keyword: WHCMSC
Theme_Keyword: National Oceanic and Atmospheric Administration
Theme_Keyword: NOAA
Theme_Keyword: sea-floor topography
Theme_Keyword: bathymetry
Theme_Keyword: Simrad EM1000
Theme_Keyword: Frederick G. Creed
Theme_Keyword: swath bathymetry
Theme_Keyword: Esri binary grid
Theme_Keyword: raster
Theme_Keyword: GeoTIFF
Theme:
Theme_Keyword_Thesaurus: ISO 19115 Topic Category
Theme_Keyword: oceans
Theme_Keyword: geoscientificInformation
Theme_Keyword: elevation
Theme:
Theme_Keyword_Thesaurus: USGS Thesaurus
Theme_Keyword: bathymetry
Theme_Keyword: multibeam sonar
Theme_Keyword: marine geology
Theme_Keyword: sea-floor characteristics
Theme_Keyword: geospatial datasets
Theme:
Theme_Keyword_Thesaurus: USGS Metadata Identifier
Theme_Keyword: USGS:63a09196d34e0de3a1f27736
Place:
Place_Keyword_Thesaurus: None
Place_Keyword: Atlantic Ocean
Place_Keyword: North America
Place_Keyword: Stellwagen Bank
Place_Keyword: Stellwagen Bank National Marine Sanctuary
Place_Keyword: U.S. east coast
Place_Keyword: United States
Place_Keyword: Massachusetts
Place_Keyword: Massachusetts Bay
Access_Constraints: None.
Use_Constraints: Not to be used for navigation.
Point_of_Contact:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey
Contact_Person: Page C. Valentine
Contact_Address:
Address_Type: Mailing and Physical
Address: 384 Woods Hole Road
City: Woods Hole
State_or_Province: MA
Postal_Code: 02543
Contact_Voice_Telephone: 508-548-8700 x2239
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 the USGS.
Browse_Graphic:
Browse_Graphic_File_Name: Browse_Graphic_File_Description:
Browse graphic of the bathymetry grid of quadrangle 5 in the Stellwagen Bank National Marine Sanctuary.
Browse_Graphic_File_Type: PNG
Data_Set_Credit:
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 source of this information.
Native_Data_Set_Environment:
Environment as of Metadata Creation: Microsoft Windows 7 Version 6.1 (Build 7601) Service Pack 1; Esri ArcGIS 10.3.1 (Build 4959) Service Pack N/A (Build N/A)
Cross_Reference:
Citation_Information:
Originator: Page C. Valentine
Originator: Tanya S. Unger
Originator: Jessica L. Baker
Originator: Christopher F. Polloni
Publication_Date: 1999
Title:
Sun-illuminated sea floor topographic maps and perspective-view imagery of quadrangles 1-18, Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts
Series_Information:
Series_Name: Open-File Report
Issue_Identification: 99-363
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication describes data collection and initial processing of multibeam bathymetry collected on Stellwagen Bank.
Online_Linkage: https://doi.org/10.3133/ofr99363
Online_Linkage: https://pubs.usgs.gov/of/of99-363/
Cross_Reference:
Citation_Information:
Originator: Page C. Valentine, editor
Publication_Date: 2005
Title:
Sea floor image maps showing topography, sun-illuminated topography, backscatter intensity, ruggedness, slope, and the distribution of boulder ridges and bedrock outcrops in the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 2840
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication describes data collection and initial processing of multibeam bathymetry collected on Stellwagen Bank.
Online_Linkage: https://doi.org/10.3133/sim2840
Online_Linkage: https://pubs.usgs.gov/sim/2005/2840/
Cross_Reference:
Citation_Information:
Originator: Bradford Butman
Originator: Page C. Valentine
Originator: Tammie J. Middleton
Originator: William W. Danforth
Publication_Date: 2007
Title:
A GIS library of multibeam data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, offshore of Boston, Massachusetts
Series_Information:
Series_Name: Data Series
Issue_Identification: 99
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication describes data collection and initial processing of multibeam bathymetry collected on Stellwagen Bank.
Online_Linkage: https://doi.org/10.3133/ds99
Online_Linkage: https://pubs.usgs.gov/ds/99/
Cross_Reference:
Citation_Information:
Originator: Page C. Valentine
Originator: Leslie B. Gallea
Publication_Date: 2015
Title:
Seabed maps showing topography, ruggedness, backscatter intensity, sediment mobility, and the distribution of geologic substrates in quadrangle 6 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 3341
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This publication contains the equivalent information as this data release, but for quadrangle 6.
Online_Linkage: https://doi.org/10.3133/sim3341
Online_Linkage: https://pubs.usgs.gov/sim/3341/
Cross_Reference:
Citation_Information:
Originator: Page C. Valentine
Originator: VeeAnn A. Cross
Publication_Date: 2024
Title:
Seabed maps showing topography, ruggedness, backscatter intensity, sediment mobility, and the distribution of geologic substrates in quadrangle 5 of the Stellwagen Bank National Marine Sanctuary region offshore of Boston, Massachusetts
Series_Information:
Series_Name: Scientific Investigations Map
Issue_Identification: 3515
Publication_Information:
Publication_Place: Reston, VA
Publisher: U.S. Geological Survey
Other_Citation_Details:
This report is the companion publication of the data release that provides the additional details and information related to the interpretation and methods. Additionally, the report contains PDF map representations of the seabed interpretation. The report also provides additional references related to the work in Stellwagen Bank National Marine Sanctuary.
Online_Linkage: https://doi.org/10.3133/sim3515
Data_Quality_Information:
Logical_Consistency_Report:
The original bathymetry data were acquired and processed using an established workflow. Although several individuals were responsible for processing the data, everyone followed the established workflow and best practices.
Completeness_Report:
These data represent all the multibeam bathymetry data available in quadrangle 5 of the Stellwagen Bank study area collected as part of this study. This grid represents a less polished version of the Creed data that has not undergone extensive filtering, interpolation, or smoothing compared to some of the bathymetric products listed in the cross-references (for example, Butman and others, 2007). There are some no data gaps within the grid that have been left uninterpolated.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
These data were navigated with a differential global positioning system (DGPS) with an assumed accuracy of +/- 10 meters.
Vertical_Positional_Accuracy:
Vertical_Positional_Accuracy_Report:
These data have been corrected for vessel motion (roll, pitch, heave, yaw) and tidal offsets, and referenced to mean lower low water. The manufacturer reported vertical resolution of the Simrad EM-1000 multibeam echo sounder is 1% of water depth, which is better than 2 m given the depths within the study area (~30 to 184 meters). Data were corrected for tidal elevation using the NOAA Boston tide gauge.
Lineage:
Process_Step:
Process_Description:
Initial data collection and processing is described in Valentine and others 1999, Valentine 2005, and Butman and others, 2007. A summary of that information is presented here. Surveying was conducted aboard the Canadian Hydrographic Service vessel Frederick G. Creed using a hull mounted multibeam echo sounder. These data were collected using a Simrad Subsea EM1000 operating at 95 kHz. SwathEd software (version unknown) developed by the Ocean Mapping Group, University of New Brunswick, was used to process the bathymetric and navigation data. The processing included editing the data to remove spurious points as well as incorporate tidal corrections. Processing took place over a span of time, 1994 to 1996.
Process_Date: 1996
Process_Step:
Process_Description:
The remaining process steps are a function of incorporating information from the previous publications (noted in cross-references), along with processing notes maintained during data processing. The final SwathEd-produced file (based on a 10-meter-grid-cell size) was converted to an ASCII file using the University of New Brunswick script r4toASCII. The format of the ASCII file is latitude, longitude, and depth. The ASCII file was converted to an ArcInfo ungenerate format using a Perl script. The resulting format is ID, longitude, latitude, and negative depth. Each point has a unique ID value. Using ArcInfo 7.03, the ungenerate format was converted to a coverage format using the 'convert to arc' from 'generate tool' available in ArcTools. The 'build' command with the point option was then used to convert the data to a point coverage. This procedure generates the point locations stored in the ungenerate file, but does not incorporate the depth values. In order to include depth, the ungenerate file - which has location as well as depth - was converted to an ArcInfo table, using 'Tables' in ArcInfo. The structure of the ArcInfo table was defined to include the ID, longitude, latitude, and depth in the appropriate format and size. Longitude and latitude were defined as floating point numbers with six decimal places, while depth was defined as a floating point number with two decimal places. To add the depth value to the point coverage, ArcInfo 'Tables' was used to join the point attribute table (pat) of the coverage to the newly-generated data table based on the ID value. In order to join the tables, the data table ID field had to be renamed to match the automatically assigned coverage ID field. The projection of the point coverage was defined in ArcInfo with the PROJECTDEFINE command and the following parameters: Projection Geographic; Datum NAD83; Units DD; Spheroid GRS80. This process was performed by Jessica Baker in 1997. Then the coverage was projected to the custom Mercator projection using the ArcInfo PROJECT command with the following options: Projection Mercator; Datum NAD83, Spheroid GRS1980; Units Meters; Longitude of Central Meridian -70degrees 19minutes; Latitude of true scale 41degrees 39minutes; False Easting 0; False northing 0. This process was performed by Jessica Baker in 1997. The final step was to convert the points to a grid. This was accomplished using the ArcInfo 'pointgrid' command. The depth attribute was gridded at a cell size of 13 meters, and the background value was set to nodata. This final processing step was performed in 1997, and then again by Tammie Middleton in 2001 and is the grid presented here. The 13-meter cell-size was chosen because it appeared to be the best cell size to avoid striping in the data when processing with the SwathEd software.
Process_Date: 2001
Process_Step:
Process_Description:
The original work on Stellwagen Bank was based on 18 individual quadrangles, and the 13-m cell size grid was the foundation of much of the subsequent work that appears on maps of the Stellwagen Bank area. The information used to generate metadata was based on previous publications, the extensive data processing log prepared by Tanya Unger and Jessica Baker, as well as the individual log files generated during ArcInfo data processing. The information from the various sources was compiled to write the metadata describing this dataset.
Process_Date: 2022
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
Address: 384 Woods Hole Rd.
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
Process_Step:
Process_Description:
The grid was added to ArcMap 10.8.1 and converted to a 32-bit GeoTIFF by right-mouse clicking the dataset then selecting 'Data-Export'. Using the dataset for the extent, spatial reference and cell size parameters, and saving in TIFF format.
Process_Date: 2022
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
Address: 384 Woods Hole Rd.
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: Raster
Raster_Object_Information:
Raster_Object_Type: Grid Cell
Row_Count: 1031
Column_Count: 1210
Vertical_Count: 1
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Map_Projection:
Map_Projection_Name: NAD 1983 Mercator (ESRI Full Name: NAD_1983_Mercator)
Mercator:
Standard_Parallel: 41.65
Longitude_of_Central_Meridian: -70.3166666667
False_Easting: 0.0
False_Northing: 0.0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: row and column
Coordinate_Representation:
Abscissa_Resolution: 13.0
Ordinate_Resolution: 13.0
Planar_Distance_Units: Meter
Geodetic_Model:
Horizontal_Datum_Name: D_North_American_1983
Ellipsoid_Name: GRS_1980
Semi-major_Axis: 6378137.0
Denominator_of_Flattening_Ratio: 298.257222101
Vertical_Coordinate_System_Definition:
Depth_System_Definition:
Depth_Datum_Name: Mean lower low water
Depth_Resolution: 0.01
Depth_Distance_Units: meters
Depth_Encoding_Method: Implicit coordinate
Entity_and_Attribute_Information:
Detailed_Description:
Entity_Type:
Entity_Type_Label: q5_13mbathy
Entity_Type_Definition:
Table containing attribute information associated with the data set.
Entity_Type_Definition_Source: U.S. Geological Survey
Attribute:
Attribute_Label: Value
Attribute_Definition:
These values represent depth relative to mean lower low water. The more negative the value, the deeper the water.
Attribute_Definition_Source: U.S. Geological Survey
Attribute_Domain_Values:
Range_Domain:
Range_Domain_Minimum: -105.7
Range_Domain_Maximum: -22.53
Attribute_Units_of_Measure: meters
Distribution_Information:
Distributor:
Contact_Information:
Contact_Organization_Primary:
Contact_Organization: U.S. Geological Survey - ScienceBase
Contact_Address:
Address_Type: Mailing and Physical
Address: Denver Federal Center, Building 810, Mail Stop 302
City: Denver
State_or_Province: CO
Postal_Code: 80225
Contact_Voice_Telephone: 1-888-275-8747
Contact_Electronic_Mail_Address: sciencebase@usgs.gov
Resource_Description:
The dataset contains the Esri binary grid of the bathymetry data provided in a zip file (q5_13mbathygrd.zip), the same data in GeoTIFF format with an accompanying world file (q5_13mbathy.tif), the browse graphic of the data (q5_13mbathy_browse.png) along with FGDC CSDGM compliant metadata in XML format. The binary grid is comprised of two folders - info and q5_13mbathy, each having numerous files combining to make the Esri binary format. For ease of transfer, the grid format is provided in a zip file.
Distribution_Liability:
Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality standards relative to the purpose for which the data were collected. Although these data and associated metadata have been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (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.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: AIG
Format_Version_Number: ArcGIS 10.3.1
Format_Information_Content:
The dataset includes the bathymetry data in Esri binary grid format with the component combined in a zip file. Additionally, the GeoTIFF format of the data, browse graphic, and FGDC CSDGM metadata in XML format are included in the dataset.
Transfer_Size: 8
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link downloads all data available from the page as a zip file, the second link is to the page containing the data, and the third link is to the data release main landing page.
Digital_Form:
Digital_Transfer_Information:
Format_Name: GeoTIFF
Format_Version_Number: ArcGIS 10.8.1
Format_Information_Content:
The dataset includes the bathymetry data in Esri binary grid format with the component combined in a zip file. Additionally, the GeoTIFF format of the data, browse graphic, and FGDC CSDGM metadata in XML format are included in the dataset.
Transfer_Size: 8
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information: Access_Instructions:
The first link downloads all data available from the page as a zip file, the second link is to the page containing the data, and the third link is to the data release main landing page.
Fees: None
Technical_Prerequisites:
These data are available as an ArcInfo 32-bit floating point binary grid in Esri format. The data are also available in GeoTIFF format. The user must have a software program capable of uncompressing archived zip files as well as reading one of these formats. The directory structure as it appears in the WinZip file of the Esri grid format must be maintained or else the binary grid is unusable.
Metadata_Reference_Information:
Metadata_Date: 20240320
Metadata_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
Contact_Voice_Telephone: 508-548-8700 x2251
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 the USGS.
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: FGDC-STD-001-1998

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