Identification_Information: Citation: Citation_Information: Originator: Page C. Valentine Originator: Jessica L. Baker Originator: Tanya S. Unger Publication_Date: 2005 Title: bathy.shp: Digital vector bathymetric/topographic contours of the sea floor in the Stellwagen Bank National Marine Sanctuary region. Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: 2840 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/sim/2005/2840/data/bathy/bathy.zip Larger_Work_Citation: 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 Edition: 1.0 Series_Information: Series_Name: Scientific Investigations Map Issue_Identification: 2840 Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Other_Citation_Details: scale 1:60,000, 6 maps, 12 sheets Online_Linkage: http://pubs.usgs.gov/sim/2005/2840/ Description: Abstract: This data set contains the sea floor topographic contours generated from a multibeam sonar survey of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts, an area of approximately 1100 square nautical miles. The Stellwagen Bank NMS Mapping Project is designed to provide detailed maps of the Stellwagen Bank region's environments and habitats and the first complete multibeam topographic and sea floor characterization maps of a significant region of the shallow EEZ. Data were collected on four cruises over a two year period from the fall of 1994 to the fall of 1996. The surveys were conducted aboard the Canadian Hydrographic Service vessel Frederick G. Creed, a SWATH (Small Waterplane Twin Hull) ship that surveys at speeds of up to 16 knots. The multibeam data were collected utilizing a Simrad Subsea EM 1000 Multibeam Echo Sounder (95 kHz) that is permanently installed in the hull of the Creed. Purpose: Development of interpretive seabed maps, sea floor imagery, and a GIS database that are accessible to scientists, policymakers, managers, and the general public. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1994 Ending_Date: 1998 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.021510 East_Bounding_Coordinate: -69.816685 North_Bounding_Coordinate: 42.851518 South_Bounding_Coordinate: 41.666379 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: Topographic data Theme_Keyword: Sea Floor Topography Theme_Keyword: Bathymetry Theme_Keyword: Geographic Information Systems Theme_Keyword: GIS 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: Frederick G. Creed Theme_Keyword: Swath Bathymetry Theme_Keyword: bathymetric contours Theme_Keyword: polyline shapefile Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans and estuaries Theme_Keyword: elevation Place: Place_Keyword_Thesaurus: General Place_Keyword: Stellwagen Bank National Marine Sanctuary Place_Keyword: SBNMS Place_Keyword: Massachusetts Place_Keyword: Gulf of Maine Place_Keyword: Atlantic Ocean Place_Keyword: Massachusetts Bay Place_Keyword: Cape Cod 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 (USGS) as the source of this information. Bathymetry is not to be used for navigational purposes. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Page C. Valentine Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: pvalentine@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/sim/2005/2840/data/bathy/bathy-thumb.gif Browse_Graphic_File_Description: Thumbnail image showing extent and location of bathymetric contours in the Stellwagen Bank National Marine Sanctuary region. Browse_Graphic_File_Type: GIF Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/sim/2005/2840/data/bathy/bathy-browse.gif Browse_Graphic_File_Description: Browse image showing extent and location of bathymetric contours in the Stellwagen Bank National Marine Sanctuary region. Browse_Graphic_File_Type: GIF Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.0.0.535 Cross_Reference: Citation_Information: Originator: Page C. Valentine Originator: Tammie J. Middleton Originator: Sarah J. Fuller Publication_Date: 2001 Title: Sea floor maps showing topography, sun-illuminated topography, and backscatter intensity of the Stellwagen Bank National Marine Sanctuary region off Boston, Massachusetts Edition: 1.01 Series_Information: Series_Name: Open-File Report Issue_Identification: 00-410 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/of00-410/ Cross_Reference: Citation_Information: Originator: Page C. Valentine Originator: Jessica L. Baker Originator: Tanya S. Unger Publication_Date: 2003 Title: Sea floor topography of the Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geologic Investigations Map Issue_Identification: I-2676-A Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Cross_Reference: Citation_Information: Originator: Page C. Valentine Originator: Tanya S. Unger Originator: Jessica L. Baker Publication_Date: 2003 Title: Sun-illuminated sea floor topography of the Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geologic Investigations Map Issue_Identification: I-2676-B Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Cross_Reference: Citation_Information: Originator: Page C. Valentine Originator: Tanya S. Unger Originator: Jessica L. Baker Publication_Date: 2003 Title: Backscatter intensity and sun-illuminated sea floor topography of the Stellwagen Bank National Marine Sanctuary off Boston, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: map Series_Information: Series_Name: Geologic Investigations Map Issue_Identification: I-2676-C Publication_Information: Publication_Place: Woods Hole Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: The ship's position was determined with an accuracy of 10 m or better using a Magnavox 4200 geographic positioning system (GPS) receiver in conjunction with differential GPS corrections transmitted by U.S. Coast Guard radio beacons. Sound velocity information was updated during the day whenever the survey moved from one area to another. Tidal corrections based on NOAA's Boston tide gauge were used to reference depth data to mean lower low water. Sounding rates depend on water depth but vary from 2 to 4 per second in water depths less than 100 meters. Horizontal spatial resolution at these sounding rates is on the order of 10% of the water depth at 16 knots; however, vertical resolution is approximately 1% or better in the same depth range. Logical_Consistency_Report: No additional checks for topological consistency were performed on the data. Completeness_Report: The bathymetric data are displayed in real time on the Sun workstation using software designed and written by the Ocean Mapping Group, University of New Brunswick. This display allows data gaps to be identified during the survey and also gives a measure of the data quality. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Sounding rates depend on water depth but vary from 2 to 4 per second in water depths less than 100 meters. Horizontal spatial resolution at these sounding rates is on the order of 10% of the water depth at 16 knots; however, vertical resolution is approximately 1% or better in the same depth range. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: Sounding rates depend on water depth but vary from 2 to 4 per second in water depths less than 100 meters. Horizontal spatial resolution at these sounding rates is on the order of 10% of the water depth at 16 knots; however, vertical resolution is approximately 1% or better in the same depth range. Lineage: Process_Step: Process_Description: The navigation and topographic data were both processed using SwathEd, a suite of bathymetric and multibeam software editing and display tools developed by Dr. John Hughes Clarke of the Ocean Mapping Group, University of New Brunswick (UNB). Tidal corrections were obtained from NOAA's Boston Tide Gauge (Station 8443970) and merged into the data set using UNB's tidal routines. The topographic information was converted into an ASCII text file containing lat, long, and depth fields, using a script created by Bill Danforth at the U.S. Geological Survey. The ASCII file was brought into Arc/Info, and a grid was generated and processed using ESRI's Arc/Info version 7.0.4 software. A point coverage containing depth values was created using the routine point-generate. The grid was created based on the depth values for each of the points using the command pointgrid. The grid was filtered with a 9 by 9 focalmedian filter. Contours were generated using latticecontour. All editing and edgematching was done by hand using arcedit. Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Vector Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: String Point_and_Vector_Object_Count: 2335 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Planar: Map_Projection: Map_Projection_Name: Mercator Mercator: Standard_Parallel: 41.650000 Longitude_of_Central_Meridian: -70.316667 False_Easting: 0.000000 False_Northing: 0.000000 Planar_Coordinate_Information: Planar_Coordinate_Encoding_Method: coordinate pair Coordinate_Representation: Abscissa_Resolution: 0.000256 Ordinate_Resolution: 0.000256 Planar_Distance_Units: meters Geodetic_Model: Horizontal_Datum_Name: North American Datum of 1983 Ellipsoid_Name: Geodetic Reference System 80 Semi-major_Axis: 6378137.000000 Denominator_of_Flattening_Ratio: 298.257222 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: bathy Entity_Type_Definition: Shapefile Attribute Table Entity_Type_Definition_Source: ESRI Attribute: Attribute_Label: FID 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: Shape Attribute_Definition: Feature geometry. Attribute_Definition_Source: ESRI Attribute_Domain_Values: Unrepresentable_Domain: Coordinates defining the features. Attribute: Attribute_Label: FNODE_ Attribute_Definition: From-node identifier of linear feature carried over from Arc/Info processing and the Arc/Info attribute FNODE_. It is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 10 Range_Domain_Maximum: 2633 Attribute_Units_of_Measure: integer count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: TNODE_ Attribute_Definition: To-node identifier of linear feature carried over from Arc/Info processing and the Arc/Info attribute TNODE_. It is an ArcInfo internal control parameter and has no applicable relevance to the use of the data Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 2634 Attribute_Units_of_Measure: integer count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: LPOLY_ Attribute_Definition: Internal number of polygon to left of arc carried over from Arc/Info processing and the Arc/Info attribute LPOLY_. It is an ArcInfo internal control parameter and has no applicable relevance to the use of the data Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1 Range_Domain_Maximum: -1 Attribute_Units_of_Measure: integer count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: RPOLY_ Attribute_Definition: Internal number of polygon to right of arc carried over from Arc/Info processing and the Arc/Info attribute RPOLY_. It is an ArcInfo internal control parameter and has no applicable relevance to the use of the data. Attribute_Definition_Source: Software Computed Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -1 Range_Domain_Maximum: -1 Attribute_Units_of_Measure: integer count Attribute_Measurement_Resolution: 1 Attribute: Attribute_Label: LENGTH Attribute_Definition: Length of the line in native units Attribute_Definition_Source: User defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 35.215 Range_Domain_Maximum: 116472.308 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: .001 Attribute: Attribute_Label: BATHYMER_ 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: CONTOUR Attribute_Definition: Depth of bathymetric contour. Values are in meters above sea level, so all values are negative. Double of width 13, but values are integer. Another attribute "INTERVAL" contains the same data stored as an integer. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -270 Range_Domain_Maximum: -5 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: .000 Attribute_Measurement_Frequency: 5 m Attribute: Attribute_Label: INTERVAL Attribute_Definition: Depth of bathymetric contour, in meters above sea level. Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -270 Range_Domain_Maximum: -5 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 5 Attribute_Measurement_Frequency: 5 m Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Page C. Valentine Contact_Organization: U.S. Geological Survey Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: pvalentine@usgs.gov Resource_Description: Downloadable Data Distribution_Liability: Although these data have been used by the U.S. Geological Survey, U.S. Department of the Interior, no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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: SHP Format_Version_Number: 3.3 Format_Specification: ESRI shapefile Format_Information_Content: The SHP file contains the geospatial data. The SHX file contains the index of the geospatial data. The DBF file contains the attribute data in dBASE format. The PRJ file contains the coordinate system information (optional). The AVL file contains the legend information (optional). The SBN and SBX files contain the spatial index of the geospatial data (optional). The XML file contains the metadata describing the data set .shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip Transfer_Size: 1.985 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/sim/2005/2840/data/bathy/bathy.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 are available in Environmental Systems Research Institute (ESRI) shapefile format. The user must have ArcGIS® or ArcView® 3.0 or greater software to read and process the data file. In lieu of ArcView or ArcGIS, the user may utilize another GIS application package capable of the importing data. A free data viewer, arcexplorer, capable of displaying the data is available from ESRI at www.esri.com. Metadata_Reference_Information: Metadata_Date: 20050822 Metadata_Review_Date: 20050822 Metadata_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Page C. Valentine Contact_Position: Research Geologist Contact_Address: Address_Type: mailing and physical address Address: U.S. Geological Survey Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2239 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: pvalentine@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_Access_Constraints: None Metadata_Use_Constraints: None Metadata_Extensions: Online_Linkage: http://www.esri.com/metadata/esriprof80.html Profile_Name: ESRI Metadata Profile