Identification_Information: Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2008 Title: RESON_BS5M_GEOG.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: http://pubs.usgs.gov/of/2007/1373/GIS/raster/backscatter/reson_bs5m_geog.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: http://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. 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 measure the relative backscatter reflectance from 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: -70.585290 North_Bounding_Coordinate: 42.885374 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: http://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: 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: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: http://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: http://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 -maxazi 15 cape_ann.mos ../ss/JDAY/*.ss* Mosaic file (reson_5m.mos) was converted to a TIFF with the command: rawtopgm -headerskip 1024 width height 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 Process_Step: Process_Description: Project to Geographic Coordinate System: Projected "reson_bs5m.tif" from UTM Zone 19 WGS84 projection to "reson_bs5m_geog.tif" in the geographic coordinate system (WGS84) using ArcCatalog (ver. 9.2) "Project Raster" tool. The Bilinear resampling algorithm was used with an output cell size of 0.000045 degrees. Process_Date: 200806 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: 4857 Column_Count: 4751 Vertical_Count: 1 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0000044956 Longitude_Resolution: 0.0000044956 Geographic_Coordinate_Units: Decimal degrees Planar: Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: row and column Coordinate_Representation: Abscissa_Resolution: 0.000045 Ordinate_Resolution: 0.000045 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_geog.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: Attribute_Label: COUNT Attribute_Definition: Count of 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_Specification: 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: 6.2 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_geog.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