DH_NOAA_backscatter1m: Composite sidescan-sonar mosaic collected by the National Oceanic and Atmospheric Administration offshore of Massachusetts in the approaches to Boston Harbor near Hull (UTM Zone 19N GeoTIFF)

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: 2010

Title:

DH_NOAA_backscatter1m: Composite sidescan-sonar mosaic collected by the National Oceanic and Atmospheric Administration offshore of Massachusetts in the approaches to Boston Harbor near Hull (UTM Zone 19N GeoTIFF)

Edition: 1.0

Geospatial_Data_Presentation_Form: remote-sensing image

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2009-1072

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage:

<https://pubs.usgs.gov/of/2009/1072/GIS/raster/backscatter/DH_NOAA_backscatter1m.zip>

Online_Linkage: <https://pubs.usgs.gov/of/2009/1072/html/appendix1.html>

Larger_Work_Citation:

Citation_Information:

Originator: Walter A. Barnhardt

Originator: Seth D. Ackerman

Originator: Brian D. Andrews

Originator: Wayne E. Baldwin

Publication_Date: 2010

Title:

Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts.

Edition: 1.0

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2009-1072

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, Massachusetts

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <https://pubs.usgs.gov/of/2009/1072/>

Description:

Abstract:

These data were collected under a cooperative agreement with the Massachusetts Office of Coastal Zone Management (CZM) and the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, Woods Hole Science Center (WHSC). Initiated in 2003, the primary objective of this program is to develop regional geologic framework information for the management of coastal and marine resources. 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. The project is focused on the inshore waters (5-30 m deep) of Massachusetts between the New Hampshire border and Cape Cod Bay. Data collected for the mapping cooperative have been released in a series of USGS Open-File Reports (<http://woodshole.er.usgs.gov/project-pages/coastal_mass/html/current_map.html>). This spatial dataset is from the study area located between Duxbury and Hull Massachusetts, and consists of high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection) and ground validation (sediment samples, video tracklines and bottom photographs). The data were collected during four separate surveys conducted between 2003 and 2007 (NOAA survey H10993 in 2003, USGS-WHSC survey 06012 in 2006, and USGS-WHSC surveys 07001 and 07003 in 2007) and cover more than 200 square kilometers of the inner continental shelf.

Purpose:

This GeoTIFF (Tagged Image File Format) contains approximately 45 square-km of RESON SeaBat 8101 and 8125 multibeam-echosounder backscatter data that were collected by the National Oceanic and Atmospheric Administration during hydrographic survey H10993 offshore of Massachusetts, in the approaches to Boston Harbor near Hull. These data are used to define the sea-floor morphology as part of the Massachusetts Sea-floor Mapping Project.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030820

Ending_Date: 20031003

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.833278

East_Bounding_Coordinate: -70.721592

North_Bounding_Coordinate: 42.349316

South_Bounding_Coordinate: 42.257596

Keywords:

Theme:

Theme_Keyword_Thesaurus: General

Theme_Keyword: U.S. Geological Survey

Theme_Keyword: USGS

Theme_Keyword: Coastal and Marine Geology Program

Theme_Keyword: CMGP

Theme_Keyword: Woods Hole Science Center

Theme_Keyword: WHSC

Theme_Keyword: Seafloor

Theme_Keyword: Marine Geology

Theme_Keyword: NOAA hydrographic survey registry number H10993

Theme_Keyword: multibeam

Theme_Keyword: multibeam echosounder

Theme_Keyword: multibeam backscatter

Theme_Keyword: backscatter

Theme_Keyword: sonar

Theme_Keyword: GeoTIFF image

Theme_Keyword: grey scale

Theme_Keyword: mosaic

Theme_Keyword: RESON

Theme_Keyword: RESON SeaBat

Theme_Keyword: RESON 8101

Theme_Keyword: RESON 8125

Theme_Keyword: NOAA Ship Thomas Jefferson

Theme_Keyword: NOAA Launch 1005

Theme_Keyword: NOAA Launch 1014

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: oceans

Theme_Keyword: oceans and coastal

Theme_Keyword: oceans and estuaries

Theme_Keyword: geoscientificInformation

Theme_Keyword: imageryBaseMapsEarthCover

Place:

Place_Keyword_Thesaurus: General

Place_Keyword: North America

Place_Keyword: United States

Place_Keyword: Atlantic Ocean

Place_Keyword: Massachusetts

Place_Keyword: Boston South Shore

Place_Keyword: Massachusetts Bay

Place_Keyword: Cape Cod Bay

Place_Keyword: Nantasket Beach

Place_Keyword: Hull Bay

Place_Keyword: Scituate

Place_Keyword: Marshfield

Place_Keyword: Brant Rock

Place_Keyword: Duxbury Beach

Place_Keyword: Duxbury Bay

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_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://pubs.usgs.gov/of/2009/1072/GIS/browse_jpg/big/DH_NOAA_backscatter1m.jpg>

Browse_Graphic_File_Description: grey scale image of multibeam-echosounder backscatter mosaic

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.1850

Cross_Reference:

Citation_Information:

Originator: J. Beaudoin

Originator: J.E. Hughes-Clarke

Originator: E.J. van den Ameele

Originator: J.V. Gardner

Publication_Date: 2002

Title:

Geometric and radiometric correction of multibeam backscatter derived from RESON 8101 systems

Series_Information:

Series_Name: Canadian Hydrographic Conference Proceedings CDROM

Issue_Identification: 2002

Publication_Information:

Publication_Place: unknown

Publisher: Canadian Hydrographic Service

Cross_Reference:

Citation_Information:

Originator: Walter A. Barnhardt

Originator: Brian D. Andrews

Originator: Bradford Butman

Publication_Date: 2006

Title:

High-Resolution Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2005-1293

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <https://pubs.usgs.gov/of/2005/1293/>

Cross_Reference:

Citation_Information:

Originator: Seth D. Ackerman

Originator: Bradford Butman

Originator: Walter A. Barnhardt

Originator: William W. Danforth

Originator: James M. Crocker

Publication_Date: 2006

Title:

High-Resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2006-1008

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <https://pubs.usgs.gov/of/2006/1008/>

Cross_Reference:

Citation_Information:

Originator: Walter A. Barnhardt

Originator: Brian D. Andrews

Originator: Seth D. Ackerman

Originator: Wayne E. Baldwin

Originator: Christopher J. Hein

Publication_Date: 2009

Title:

High-Resolution Geological Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2007-1373

Publication_Information:

Publication_Place: Woods Hole Science Center, Woods Hole, MA

Publisher: U.S. Geological Survey, Coastal and Marine Geology Program

Online_Linkage: <https://pubs.usgs.gov/of/2007/1373/>

Cross_Reference:

Citation_Information:

Originator: NOAA (National Oceanic and Atmospheric Administration)

Publication_Date: 2003

Title:

Data Acquisition and Process Report - NOAA Ship Thomas Jefferson (August - November 2003)

Series_Information:

Series_Name: Data Acquisition and Process Report (DAPR)

Issue_Identification: NOAA Ship Thomas Jefferson (August - November 2003)

Publication_Information:

Publication_Place: National Geophysical Data Center, Boulder, CO

Publisher:

National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC)

Online_Linkage:

<http://surveys.ngdc.noaa.gov/mgg/NOS/DAPRs/NOAAShipTHOMASJEFFERSONAugNov2003.pdf>

Cross_Reference:

Citation_Information:

Originator: NOAA (National Oceanic and Atmospheric Administration)

Publication_Date: 2003

Title:

Descriptive Report, Basic Hydrographic Survey H10993, Approaches to Boston Harbor, Massachusetts Bay, Massachusetts

Series_Information:

Series_Name: Descriptive Report (DR)

Issue_Identification: H10993

Publication_Information:

Publication_Place: National Geophysical Data Center, Boulder, CO

Publisher:

National Oceanic and Atmospheric Administration, National Geophysical Data Center (NGDC)

Online_Linkage:

<http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H10993/DR/H10993.pdf>

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Image pixel values contain acoustic reflectivity values normalized to an 8-bit data range (0-255). Low-backscatter is represented by dark tones (low values) and high-backscatter is represented by bright tones (high values).

Logical_Consistency_Report:

This image represents backscatter imagery from multibeam echosounder sonar data along the main survey lines; no crossline data were included in this image. Gaps may occur along-track and between adjacent lines. Significant tonal variation occur as a result of different sonar equipment and changes in acquisition setting that were not able to be accounted for in the processing.

Completeness_Report:

This backscatter mosaic was created from the subset of multibeam-echosounder backscatter data collected during NOAA hydrographic survey H10993 that are within the study area between Duxbury and Hull. Additional multibeam-echosounder data located outside the Duxbury to Hull study area were not processed. Some sections of sonar data with excess noise may have been clipped during processing. No additional visual enhancement was performed.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

Hydrographic survey H10993: Horizontal sounding positional control for the NOAA H10993 survey was determined using the Global Positioning System (GPS) corrected by U.S. Coast Guard differential GPS (DGPS) beacon stations. The primary and only DGPS beacon used for survey H10993 was Portsmouth Harbor, NH (Beacon No. 771). No horizontal control stations were established for the NOAA survey. Additional information may be found in the NOAA Descriptive Report for survey H10993, the Data Acquisition and Processing Report, and the Horizontal and Vertical Control Report.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Type_of_Source_Media: disc

Source_Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20030820

Ending_Date: 20031003

Source_Currentness_Reference: ground condition

Source_Contribution:

For NOAA Hydrographic survey H10993: Launch 1005 acquired multibeam-echosounder data using a hull-mounted RESON SeaBat 8101 multibeam system. All positioning and attitude on Launch 1005 were determined with a TSS POS/MV 320 (version 2) GPS aided inertial navigation system. Launch 1014 acquired multibeam-echosounder data using a hull-mounted RESON SeaBat 8125 multibeam system. For continuous refraction correctors at the transducer, a Digibar Pro was used for the surface sound velocity and all positioning and attitudes on Launch 1014 were determined with a TSS POS/MV 320 (version 3) GPS-aided inertial navigation system. The RESON SeaBat 8101 is a 1.5 deg beam angle system which operates at a frequency of 240 kHz and collects 101 individual soundings in a swath oriented perpendicular to the vessel track. The RESON SeaBat 8125 is a 0.5 deg beam angle system which operates at a frequency of 455 kHz and collects 240 individual soundings in a swath oriented perpendicular to the vessel track. Sounding positional control was determined using the Global Positioning System (GPS) corrected by U.S. Coast Guard differential GPS (DGPS) beacon stations. The primary and only DGPS beacon used for this survey was Portsmouth Harbor, NH (Beacon # 771). No horizontal control stations were established for this survey. NOAA's Computer Aided Resource Information System (CARIS) directory with all of the processed multibeam bathymetric data was provided to the USGS. The raw eXtended Triton Format (XTF) multibeam backscatter data from NOAA survey H10993 was also delivered to the USGS where it was processed using a radiometric-correction technique developed by the Ocean Mapping Group and the University of New Brunswick (Beaudoin and others, 2002). Refer to the Fall Data Acquisition and Processing Report (DAPR) and the Horizontal and Vertical Control Report, for detailed equipment, vessel configuration and setting information.

No additional visual enhancement was performed. Significant tonal variation occurs in this dataset as a result of the system parameters during acquisition.

Process_Step:

Process_Description:

The raw eXtended Triton Format (XTF) multibeam backscatter data from NOAA survey H10993 was also delivered to the USGS where it was processed (in SwathEd, build January2008) using a radiometric-correction technique developed by the Ocean Mapping Group and the University of New Brunswick (Beaudoin and others, 2002).

Process_Date: 2008;2009

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

Contact_Voice_Telephone: (508) 548-8700x2315

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

Each survey day was individually mosaicked into a separate mosaic file (MOS) with the bounds of the entire H10993 survey area and converted to a Portable GrayMap image (PGM) using SwathEd (build January2008) software. The PGM files were then converted to TIFF images using ImageMagick (v6.3.7). TIFF World Files (TFW) were created for each TIFF image from the MOS files using the SwathEd command "edhead."

Process_Date: 2009

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

Contact_Voice_Telephone: (508) 548-8700x2315

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

The TIFF images for each individual survey day were combined using Adobe Photoshop (CS2); the backscatter from the hull-mounted multibeam system displayed no layback offset that needed to be accounted for. No additional visual enhancement was performed. Significant tonal variation occurs in this dataset as a result of the system parameters during acquisition.

Process_Date: 2009

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

Contact_Voice_Telephone: (508) 548-8700x2315

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: sackerman@usgs.gov

Process_Step:

Process_Description:

A TIFF World File (TFW) was created using Mentor Software GeoTiffExaminer (no version) to define the spatial extent of the TIFF image. GeoTiffExaminer was also used to transfer the spatial information to the TIFF, creating a GeoTIFF image

Source_Used_Citation_Abbreviation: DH_NOAA_backscatter1m.tfw

Process_Date: 2009

Source_Produced_Citation_Abbreviation: DH_NOAA_backscatter1m.tif

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

Contact_Voice_Telephone: (508) 548-8700x2315

Contact_Facsimile_Telephone: (508) 457-2310

Contact_Electronic_Mail_Address: sackerman@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 13001

Column_Count: 9001

Vertical_Count: 1

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Planar:

Grid_Coordinate_System:

Grid_Coordinate_System_Name: Universal Transverse Mercator

Universal_Transverse_Mercator:

UTM_Zone_Number: 19

Transverse_Mercator:

Scale_Factor_at_Central_Meridian: 0.999600

Longitude_of_Central_Meridian: -69.000000

Latitude_of_Projection_Origin: 0.000000

False_Easting: 500000.000000

False_Northing: 0.000000

Planar_Coordinate_Information:

Planar_Coordinate_Encoding_Method: row and column

Coordinate_Representation:

Abscissa_Resolution: 1.000000

Ordinate_Resolution: 1.000000

Planar_Distance_Units: meters

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:

Overview_Description:

Entity_and_Attribute_Overview:

There are no attributes associated with a GeoTIFF image. Image pixel values contain acoustic reflectivity values normalized to an 8-bit data range (0-255) with the data range 0-254. Low-backscatter is represented by dark tones (low values) and high-backscatter is represented by bright tones (high values). The background color is set to 255 and can be turned off without removing data values.

Entity_and_Attribute_Detail_Citation: U.S. Geological Survey

Distribution_Information:

Distributor:

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

Resource_Description: Downloadable Data

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 U.S. Geological Survey 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: WinZip

Format_Version_Number: 9.0

Format_Information_Content:

This WinZip file contains a geographic GeoTIFF image of multibeam-echosounder data from the Duxbury to Hull survey area.

File_Decompression_Technique: use WinZip or pkUnzip

Transfer_Size: 29.000 Mbytes

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

<https://pubs.usgs.gov/of/2009/1072/GIS/raster/backscatter/DH_NOAA_backscatter1m.zip>

Access_Instructions: Data can be downloaded via the World Wide Web (WWW)

Offline_Option:

Offline_Media: DVD-ROM

Recording_Capacity:

Recording_Density: 4.75

Recording_Density_Units: Gbytes

Recording_Format: UDF

Fees: none

Technical_Prerequisites:

This zip file contains a GeoTIFF image with an accompanying world file. To utilize this data, the user must have an image viewer, image processing or GIS software package capable of importing a GeoTIFF image. A free spatial data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com.

Metadata_Reference_Information:

Metadata_Date: 20090821

Metadata_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

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998

Metadata_Time_Convention: local time

Metadata_Extensions:

Online_Linkage: <http://www.esri.com/metadata/esriprof80.html>

Profile_Name: ESRI Metadata Profile