Metadata: Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2010 Title: One meter acoustic backscatter mosaic acquired using a Klein 3000 sidescan sonar offshore of Massachusetts within northern Cape Cod Bay (CCB_KLEIN_BS_1M.TIF GeoTIFF Image, UTM Zone 19N). Edition: 1.0 Geospatial_Data_Presentation_Form: remote-sensing image Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1006 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, Massachusetts Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20101006 Online_Linkage: http://pubs.usgs.gov/of/2010/1006/GIS/raster/backscatter/CCB_Klein_bs_1m.zip Online_Linkage: http://pubs.usgs.gov/of/2010/1006/html/appendix1.html Larger_Work_Citation: Citation_Information: Originator: Brian D. Andrews Originator: Seth D. Ackerman Originator: Wayne E. Baldwin Originator: Walter A. Barnhardt Publication_Date: 2010 Title: Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts. Edition: 1.0 Series_Information: Series_Name: Open-File Report Issue_Identification: 2010-1006 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2010/1006/ 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 Coastal and Marine Science Center (WHCMSC). 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 of coastal Massachusetts, primarily in water depths of 3-30 meters deep. 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). The data collected in the study area located in Northern Cape Cod Bay Massachusetts includes high-resolution geophysics (bathymetry, backscatter intensity, and seismic reflection), and ground validation (sediment samples, video tracklines, and bottom photographs). The data were collected during five separate surveys conducted between 2006 and 2008 and cover 480 square kilometers of the inner continental shelf. More information about the individual USGS surveys conducted as part of the northern Cape Cod Bay project can be found on the Woods Hole Coastal and Marine Science Center Field Activity webpage: 06012: http://quashnet.er.usgs.gov/data/2006/06012/ 07001: http://quashnet.er.usgs.gov/data/2007/07001/ 07002: http://quashnet.er.usgs.gov/data/2007/07002/ 07003: http://quashnet.er.usgs.gov/data/2007/07003/ 08002: http://quashnet.er.usgs.gov/data/2008/08002/ Purpose: The purpose of this GeoTIFF is to publish single mosaic of acoustic backscatter of the seafloor acquired during four surveys using a Klein 3000 sidescan-sonar in the Cape Cod Bay survey area. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20060816 Ending_Date: 20080507 Currentness_Reference: ground condition of four separate date ranges - 20060816 to 20060823; 20070429 to 20070503; 20070725 to 20070807; 20080429 to 20080507 Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.648090 East_Bounding_Coordinate: -70.151940 North_Bounding_Coordinate: 42.096177 South_Bounding_Coordinate: 41.928100 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:721d23ba-7971-474a-a673-bba38cd00b94 Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Seafloor Theme_Keyword: Marine Geology Theme_Keyword: field activity serial number 06012 Theme_Keyword: field activity serial number 07001 Theme_Keyword: field activity serial number 07002 Theme_Keyword: field activity serial number 08002 Theme_Keyword: field activity number 2006-012-FA Theme_Keyword: field activity number 2007-001-FA Theme_Keyword: field activity number 2007-002-FA Theme_Keyword: field activity number 2008-002-FA Theme_Keyword: sidescan Theme_Keyword: sidescan-sonar Theme_Keyword: sonar Theme_Keyword: Klein Theme_Keyword: Klein 3000 Theme_Keyword: k3k Theme_Keyword: backscatter Theme_Keyword: GeoTIFF Theme_Keyword: R/V Megan T. Miller Theme_Keyword: R/V Rafael Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme_Keyword: imageryBaseMapsEarthCover Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: sea-floor acoustic reflectivity Theme_Keyword: image mosaics Theme_Keyword: sidescan sonar Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: None Place_Keyword: United States Place_Keyword: North America Place_Keyword: Atlantic Ocean Place_Keyword: Gulf of Maine Place_Keyword: Cape Cod Bay Place_Keyword: Massachusetts Bay Place_Keyword: Duxbury Place_Keyword: Provincetown Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Seafloor Stratum_Keyword: sea floor Temporal: Temporal_Keyword_Thesaurus: None Temporal_Keyword: 2006 Temporal_Keyword: 2007 Temporal_Keyword: 2008 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 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: http://pubs.usgs.gov/of/2010/1006/GIS/browse_jpg/CCB_Klein_bs_1m.jpg Browse_Graphic_File_Description: gray scale image of sidescan-sonar mosaic Browse_Graphic_File_Type: JPEG Native_Data_Set_Environment: Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.3.1.1850 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: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://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: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://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: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2007/1373/ Cross_Reference: 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 Series_Information: Series_Name: Open-File Report Issue_Identification: 2009-1072 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2009/1072/ Cross_Reference: Citation_Information: Originator: William W. Danforth Publication_Date: 1997 Title: XSonar/ShowImage: A complete system for rapid sidescan-sonar processing and display. Series_Information: Series_Name: Open-File Report Issue_Identification: 97-686 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.er.usgs.gov/usgspubs/ofr/ofr97686 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: All sidescan-sonar data in this mosaic were collected with a Klein 3000 dual-frequency (132/445 kHz) sidescan-sonar system. Only the 132-kHz data were used to generate the sidescan-sonar mosaic. All data were processed with the same methods. Completeness_Report: This mosaic does not include all acoustic backscatter data collected in the northern Cape Cod Bay survey area. Data collected along transit lines, east-west seismic tie lines and other lines of poor quality were excluded from this mosaic The "mosaic" attribute in the CCB_BackscatterTracklines shapefile published in this report identifies the 626 lines that were included, and the 17 lines that were not included, in this mosaic. A data gap exists in this mosaic where the Klein sidescan winch was inoperable for one day. The backscatter data in this gap is covered by backscatter data acquired with the SEA Ltd. SWATHplus interferometric sonar (CCB_SwathBS_1m.tif). Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Field activities 06012 and 07002: The Klein 3000 towfish was deployed from the stern A-frame of the R/V Megan T. Miller. Real-time kinematic (RTK) GPS navigation data were provided by an Ashtech Z-Extreme receiver (an Ashtech BR2G DGPS was used as a backup system) and recorded to the raw data files (XTF) via the Klein SonarPro (version 9.6 & 10.0) acquisition software. During some portions of the survey, technical difficulties caused the GPS systems to malfunction and loose the "fixed" RTK signal. When this occurred, the navigation system generally defaulted to a "float" RTK or DGPS signal, or the navigation was lost. When possible, surveying was halted until a reliable GPS signal was restored. A digital cable counter attached to the winch used to deploy the sidescan-sonar towfish measured changes in the amount of cable extended from the A-frame and updated the cable out parameter in SonarPro. Using the cable out value and linear offset between the A-frame and the RTK-GPS antenna, Sonar Pro calculated towfish layback positions in real time and recorded them to the XTF file headers. A conservative estimate of positional accuracy is ± 10 m, but when the navigation system was providing the "fixed" RTK signal, positional accuracy is likely < 1 m. Positional uncertainty arises because layback calculations do not account for fish motion behind the vessel, which is caused by sea state and vessel speed induced changes in the angle and scope of the tow cable. Field activities 07001 and 08002: The Klein 3000 towfish was deployed from a davit on the port side aft on the R/V Rafael. Real-time kinematic (RTK) GPS navigation data were provided by an Ashtech Z-Surveyor Extreme receiver and recorded to the raw data files (XTF) via the Klein SonarPro (version 9.6 and 10.0) acquisition software. A conservative estimate of positional accuracy is ± 10 m, but when the navigation system was providing the "fixed" RTK signal, positional accuracy is likely <1 m. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Information unavailable from original metadata. Assumed to be USGS. Publication_Date: unknown Title: Information unavailable from original metadata. Other_Citation_Details: This file had a source contribution, but no other source information. This information had to be modified to meet the standard. Type_of_Source_Media: Information unavailable from original metadata. Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20060816 Ending_Date: 20080507 Source_Currentness_Reference: Information unavailable from original metadata, but assumed to be the same as the time period of content. Ground condition of four separate date ranges - 20060816 to 20060823; 20070429 to 20070503; 20070725 to 20070807; 20080429 to 20080507. Source_Citation_Abbreviation: Information unavailable from original metadata. Source_Contribution: Acoustic backscatter data acquisition for field activities 06012 and 07002: The Klein 3000 towfish was deployed from the stern A-frame of the R/V Megan T. Miller. A digital cable counter attached to the winch used to deploy the sidescan-sonar towfish measured changes in the amount of cable extended from the A-frame and updated the "cable out" parameter in SonarPro acquisition software (version 9.6). Backscatter data were collected with a 100 or 150 m range (200 or 300 m either side of towfish) depending on line spacing. Acoustic backscatter data acquisition for field activities 07001 and 08002: The Klein 3000 towfish was deployed from a davit on the port side of the R/V Rafael approximately 1 m astern and 0.5 m below the water surface. These data were acquired using a 75-100 m range(150-200 m total width). Process_Step: Process_Description: Within XSonar/ShowImage sidescan-sonar processing software (version: 1.1) a median filtering routine (4 pixels across track by 3 pixels along track) was applied to the raw sidescan-sonar data (XTF) to remove speckle noise. Processed data are stored as 8-bit data files. Navigation was also extracted from the raw data at a 1-minute interval and saved in ASCII format. Quality checks were conducted on the navigation to eliminate spurious or duplicate navigation fixes. The sonar data were further processed to correct for towfish altitude (i.e. proper tracking of the seafloor), and slant-range and beam pattern distortions inherent in the sonar data. Processed sonar files were then merged with the edited navigation then mapped at a 1.0 meter resolution in UTM coordinates (UTM, Zone 19N, WGS84, meters) and saved in two XSonar/ShowImage mosaic files (*.ras) representing odd and even (i.e. every other line) sonar tracklines. Processing occurred in 2006, 2007, and 2008. Process_Date: 2008 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: XSonar to Tiff conversion: Each *.ras file was converted to a raw raster file (*.raw) in Xsonar at a resolution of 1-m per pixel. The 80-byte header for each *ras raster file was removed and the images was converted to a raster (.raw) file with the command: dd if=filename.ras of=filename.raw bs=80 skip=1. The resulting rasters (.raw) were converted to a TIFF using Adobe Photoshop (ver. 10.0.1). Processing Occurred in 2006, 2007, and 2008. Process_Date: 2008 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: PCI Mosaic: A new PCI project (ver.10.1.3) and four associated pix (06012.pix, 07001.pix, 07002.pix, 08002.pix) files were created to mosaic the TIFF files from each of the four surveys. Each TIFF file was imported to the corresponding pix file using the OrthoEngine module. Ground control points (GCPs) for each line were identified from adjacent overlapping lines. Once GCPs were collected, each line was orthorectified to the master pix file that is referenced to the Universal Transverse Mercator coordinate system (UTM) Zone 19 WGS84. All GCPs were saved to text files with RMS errors for each point. Process_Date: 2009 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: Final Mosaic: The four separate mosaics in pix format were combined into a new pix file (CCB_Klein_bs_1m.pix) that covered the entire extent of all four surveys in northern Cape Cod Bay using the basic steps below: 1) The rectified mosaic (*.pix) files from 07001 and 08002 were added to the new mosaic. 2) The rectified mosaic (*.pix) files for 06012 and 07002 were mosaiced together in PCI (CCB_offshore.pix) and then exported to a GeoTIFF (CCB_offshore.tif). The 8-bit range of the image (color stretch) was adjusted to visually match the inshore backscatter data in CCB_Klein_bs_1m.pix. 3) The color adjusted GeoTIFF (CCB_offshore_Adj.tif) was imported back into PCI and mosaicked into the CCB_Klein_bs_1m.pix file to generate a 1-m mosaic of Klein data. 4) The final mosaic (CCB_Klein_bs_1m.pix) was exported to a GeoTIFF (CCB_Klein_bs_1m.tif). A TIFF world file (tfw) was generated for the GeoTIFF using GeoTIFFExaminer (no version). Process_Date: 201001 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: Edits to the metadata were made to fix any errors that MP v 2.9.30 flagged. This is necessary to enable the metadata to be successfully harvested for various data catalogs. In some cases, this meant adding text "Information unavailable" or "Information unavailable from original metadata" for those required fields that were left blank. Other minor edits were probably performed (title, publisher, publication place, etc.). The format of the time period of content and some process dates had to be fixed. This file had a source contribution, but no other source information. This information had to be modified to meet the standard. The distribution format was modified in an attempt to be more consistent with other metadata files of the same data format. The metadata date (but not the metadata creator) was edited to reflect the date of these changes. The metadata available from a harvester may supersede metadata bundled within a download file. Compare the metadata dates to determine which metadata file is most recent. Process_Date: 20151120 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 Contact_Voice_Telephone: 508-548-8700 x2251 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: vatnipp@usgs.gov Process_Step: Process_Description: USGS Thesaurus keywords added to the keyword section. Process_Date: 20180720 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: 384 Woods Hole Road 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: Crossref DOI link was added as the first link in the metadata. Process_Date: 20191118 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: 384 Woods Hole Road 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: Added keywords section with USGS persistent identifier as theme keyword. Process_Date: 20200908 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: 384 Woods Hole Road 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: Pixel Row_Count: 18000 Column_Count: 40800 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: Detailed_Description: Entity_Type: Entity_Type_Label: CCB_Klein_bs_1m.tif.vat Entity_Type_Definition: Information unavailable from original metadata. Entity_Type_Definition_Source: Information unavailable from original metadata. Attribute: Attribute_Label: ObjectID Attribute_Definition: Internal feature number. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Sequential unique whole numbers that are automatically generated. 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: 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 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: GeoTIFF Format_Version_Number: PCI v. 10.1.3 Format_Information_Content: WinZip file contains a GeoTIFF image and associated world file of sidescan-sonar collected within Northern Cape Cod Bay. File_Decompression_Technique: WinZip Transfer_Size: 262 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2010/1006/GIS/raster/backscatter/CCB_Klein_bs_1m.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 compressed GeoTIFF image and world file. The user must have software capable of uncompressing the zip file and viewing a GeoTIFF image. Metadata_Reference_Information: Metadata_Date: 20240318 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: 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 USGS. (updated on 20240318) Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time