RESON_BS5M.tif - 5 meter multibeam-sonar backscatter GeoTIFF mosaic of the offshore portion of the Cape Ann to Salisbury Beach Massachusetts survey area.

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: 2008

Title:

RESON_BS5M.tif - 5 meter multibeam-sonar backscatter GeoTIFF mosaic of the offshore portion of the Cape Ann to Salisbury Beach Massachusetts survey area.

Edition: 1.0

Geospatial_Data_Presentation_Form: remote-sensing image

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2007-1373

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/2007/1373/GIS/raster/backscatter/reson_bs5m.zip>

Larger_Work_Citation:

Citation_Information:

Originator: Walter A. Barnhardt

Originator: Brian D. Andrews

Originator: Seth D. Ackerman

Originator: Wayne E. Baldwin

Originator: Christopher J. Hein

Publication_Date: 2008

Title:

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

Edition: 1.0

Series_Information:

Series_Name: Open-File Report

Issue_Identification: 2007-1373

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/2007/1373/>

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, Coastal and Marine Geology Program, Woods Hole Science Center. 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 reserves, and assessing environmental changes due to natural or human impacts. The project is focused on the inshore waters (5-30m 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 Cape Ann and Salisbury Beach Massachusetts project area. They were collected in two separate surveys in 2004 and 2005 and cover approximately 325 square kilometers of the inner continental shelf. High resolution bathymetry and backscatter intensity were collected in 2004 and 2005. Seismic profile data, sediment samples and bottom photography were also collected in 2005.

Purpose:

The purpose of these data is to collect relative backscatter reflectance of the seafloor with a hull-mounted RESON 8101 multibeam echo sounder in the offshore survey area.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 20040223

Ending_Date: 20040323

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -70.798877

East_Bounding_Coordinate: -70.585305

North_Bounding_Coordinate: 42.885321

South_Bounding_Coordinate: 42.667022

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: Backscatter

Theme_Keyword: Seafloor

Theme_Keyword: Marine Geology

Theme_Keyword: Multibeam Echo Sounder

Theme_Keyword: field activity serial number 04015

Theme_Keyword: Science Applications International Corporation

Theme_Keyword: SAIC

Theme_Keyword: RESON 8101

Theme_Keyword: R/V OceanExplorer

Theme_Keyword: GeoTIFF

Theme_Keyword: grayscale

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: oceans

Theme_Keyword: oceans and estuaries

Theme_Keyword: oceans and coastal

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: Gulf of Maine

Place_Keyword: Bigelow Bight

Place_Keyword: Merrimack River

Place_Keyword: Ipswich Bay

Place_Keyword: Massachusetts

Place_Keyword: Cape Ann

Place_Keyword: Salisbury Beach

Place_Keyword: Plum Island

Stratum:

Stratum_Keyword_Thesaurus: General

Stratum_Keyword: Seafloor

Temporal:

Temporal_Keyword_Thesaurus: General

Temporal_Keyword: 2004

Access_Constraints: None

Use_Constraints:

The intended scale of these data is 1:25,000. Public domain data from the U.S. Government are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information.

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer

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 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: <https://pubs.usgs.gov/of/2007/1373/GIS/browse_jpg/reson_bs5m.jpg>

Browse_Graphic_File_Description: black and white thumbnail image of backscatter mosaic

Browse_Graphic_File_Type: JPEG

Native_Data_Set_Environment:

Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.6.1500

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: Science Applications International Corporation (SAIC)

Publication_Date: 20040430

Title: Southern Merrimack Embayment Multibeam Survey, Survey Report

Edition: SAIC Doc 04-TR-004

Series_Information:

Series_Name: Survey Report

Publication_Information:

Publication_Place: Newport, Rhode Island

Publisher: SAIC

Online_Linkage: <https://pubs.usgs.gov/of/2007/1373/html/appendix5.html>

Cross_Reference:

Citation_Information:

Originator: Beaudoin, J.

Originator: Hughes Clarke, J.E.

Originator: van den Ameele, E.

Originator: Gardner, J.,

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,

Online_Linkage:

<http://www.omg.unb.ca/omg/papers/Beaudoin_Multibeam_Backscatter_Reson_8101_Systems.pdf>

Data_Quality_Information:

Completeness_Report:

Data are included from all main scheme and gap file survey lines with the exception of line OEMBA04076_D07. The backscatter collected along this line was not processed because of complications with merging the navigation. Data collected from patch tests and cross lines are not included in this mosaic.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:

All data collected on the R/V OceanExplorer used Differential Global Positioning System (DGPS) from U.S. Coast Guard land stations. Vessel positioning confidence checks were done by comparing the location data recorded from the POS/MV to location data recorded from the Trimble DGPS to ensure that both DGPS receivers were recording the same location at the same time.

Lineage:

Source_Information:

Source_Contribution:

System Setup and Operation: The offshore bathymetric and backscatter data were collected aboard the R/V OceanExplorer in 2004 using a hull-mounted RESON 8101 multibeam echo sounder operating at a frequency of 240 kHz. The survey comprised 328 main scheme lines at 50, 75, 100, 125, 150 and 200-meter spacings and 6 cross lines at 3 km spacing. The RESON 8101 used cutoff angles set at 57 degrees (114 degrees total swath) in order to provide three times the water depth per swath. Vessel speed for the survey was nominally 9 knots.

Process_Step:

Process_Description:

The majority of the multibeam data were initially edited onboard the vessel, using SAIC's Multi View Editor (MVE) program. This tool is a geo-referenced editor, which allows for both plan and profile views with each beam in its true geographic position and depth. Each data file was edited to remove noise, fish, etc. At the end of each leg, both the raw and processed data were backed up onto 4mm tapes and shipped to the Data Processing Center in Newport, RI.

Once the data were in Newport and had been extracted to local machines, track lines were created by extracting the sounder position from the multibeam data. The tracks were reviewed to confirm that no errors in navigation existed and that the tracks extended to the outermost bounds of the survey area.

Process_Date: 200403

Process_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: Science Applications International Corporation (SAIC)

Contact_Address:

Address_Type: mailing and physical address

Address: 221 Third St.

City: Newport

State_or_Province: RI

Postal_Code: 02840

Country: USA

Contact_Voice_Telephone: 401-847-4210

Contact_Facsimile_Telephone: 401-849-1585

Process_Step:

Process_Description:

Processed and edited multibeam line files were delivered to USGS by SAIC in GSF (Generic Sensor Format) format.

Process_Date: 20040430

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Bradford Butman

Contact_Organization: U.S. Geological Survey

Contact_Position: Oceanographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-548-8700 x2212

Contact_Facsimile_Telephone: 505-457-2310

Contact_Electronic_Mail_Address: bbutman@usgs.gov

Process_Step:

Process_Description:

GSF files were converted to UNB OMG (University of New Brunswick, Ocean Mapping Group) SwathEd format using new_unravel_gsf script developed by Jonathan Beaudoin and the University of New Brunswick, Ocean Mapping Group. This SwathEd script converted the GSF files for each line file and unraveled (converted) them into SwathEd format. This unravel process also normalized the effects of power and gain changes as described in Beaudoin and others 2002.

Process_Date: 200801

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer

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 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

SwathEd Mosaic Process: An output file is created ( filename_ss_arc) containing the processed backscatter data (*.ss). These files were mosaicked in SwathEd using the command: mos2 -maxdist 50 -maxaxi 15 cape_ann.mos ../ss/JDAY/*.ss*

Mosaic file (reson_5m.mos) was converted to a TIFF with the command: rawtopgm -headerskip 1024 429 699 cape_ann.mos | pnmtotiff > reson_5m.tif. The TIFF file "reson_5m.tif" was georeferenced by creating a TIFF world file (reson_5m.tfw) in a text editor and using the upper left bounding coordinates (UTM 19 WGS84) and resolution from the mosaic process.

Process_Date: 200801

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer

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 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@usgs.gov

Process_Step:

Process_Description:

Convert to GeoTIFF: Convert "reson_bs5m.tif" (with tfw file) to a GeoTIFF using GeoTIFFExamine (Mentor Software ver. 1.02). This process reads the georeferencing information from the tfw file and embeds it into the header of the TIFF.

Process_Date: 200801

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer

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 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@usgs.gov

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Raster

Raster_Object_Information:

Raster_Object_Type: Pixel

Row_Count: 4781

Column_Count: 3399

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: 5.001120

Ordinate_Resolution: 5.001120

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:

Detailed_Description:

Entity_Type:

Entity_Type_Label: reson_bs5m.tif.vat

Entity_Type_Definition: Value Attribute Table

Entity_Type_Definition_Source: ESRI

Attribute:

Attribute_Label: OID

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: VALUE

Attribute_Definition: Value of pixel in Digital number units

Attribute_Definition_Source: ESRI

Attribute_Domain_Values:

Range_Domain:

Range_Domain_Minimum: 2

Range_Domain_Maximum: 255

Attribute:

Attribute_Label: COUNT

Attribute_Definition: Count or number of pixels

Attribute_Definition_Source: ESRI

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). Low-backscatter is represented by dark tones (low values) and high-backscatter is represented by bright tones (high values). The background no data value outside the mosaic is 0. The no data value inside the bounds of the mosaic is set to 255 in the missing line OEMBA04076_D07. The data range of good pixel values is 2-254.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey, Woods Hole Science Center

Contact_Position: Geographer

Contact_Address:

Address_Type: mailing and physical address

Address: 384 Woods Hole Rd.

City: Woods Hole

State_or_Province: MA

Postal_Code: 02543

Country: USA

Contact_Voice_Telephone: 508-548-8700 x2348

Contact_Electronic_Mail_Address: bandrews@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 USGS 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: TIFF

Format_Version_Number: GeoTIFF

Format_Information_Content:

File contains RESON 8101 multibeam backscatter imagery from the offshore portion of the Cape Ann to Salisbury Beach Massachusetts survey area.

File_Decompression_Technique: WinZip

Transfer_Size: 5.6 Mb

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name:

http:/pubs.usgs.gov/of/2007/1373/GIS/raster/backscatter/reson_bs5m.zip

Offline_Option:

Offline_Media: DVD-ROM

Recording_Capacity:

Recording_Density: 4.75

Recording_Density_Units: Gbytes

Recording_Format: UDF

Fees: None

Technical_Prerequisites:

These data in a tiled GeoTIFF format are distributed as a compressed WinZip file. The user must have software capable of uncompressing a WinZip (ver. 9.0) file and viewing a tiled GeoTIFF image file.

Metadata_Reference_Information:

Metadata_Date: 20090126

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Brian Andrews

Contact_Organization: U.S. Geological Survey

Contact_Position: Geographer

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 x2348

Contact_Facsimile_Telephone: 508-457-2310

Contact_Electronic_Mail_Address: bandrews@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