Identification_Information: Citation: Citation_Information: Originator: Bradford Butman Originator: Tammie J. Middleton Publication_Date: 2007 Title: Q3_1MCTR.SHP - 1-m interval contours of smoothed multibeam bathymetry in western Massachusetts Bay map Quadrangle 3 Edition: 1.0 Geospatial_Data_Presentation_Form: vector digital data Series_Information: Series_Name: Data Series Issue_Identification: 99 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/ds/99/massbay_gis/2_multibeam/bathymetry/q3_1mctr.zip Online_Linkage: http://pubs.usgs.gov/ds/99/webpages/quad3.html Larger_Work_Citation: Citation_Information: Originator: Butman, Bradford Originator: Valentine, Page C. Originator: Middleton, Tammie J. Originator: Danforth, William W. Publication_Date: 2007 Title: A GIS Library of Multibeam Data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, Offshore of Boston, Massachusetts Edition: 1.0 Series_Information: Series_Name: Data Series Issue_Identification: 99 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/ds/99/ Description: Abstract: The U.S. Geological Survey has conducted geologic mapping to characterize the sea floor offshore of Massachusetts. The mapping was carried out using a Simrad Subsea EM 1000 Multibeam Echo Sounder on the Frederick G. Creed on four cruises conducted between 1994 and 1998. The mapping was conducted in cooperation with the National Oceanic and Atmospheric Administration (NOAA) and with support from the Canadian Hydrographic Service and the University of New Brunswick. The long-term goal of this mapping effort is to produce high-resolution geologic maps and a Geographic Information System (GIS) project that presents images and grids of bathymetry, shaded relief bathymetry, and backscatter intensity data from these surveys that will serve the needs of research, management and the public. Purpose: This shapefile shows sea floor bathymetry as contours at 1-meter intervals in western Massachusetts Bay map Quadrangle 3. The contours were derived from a 6-m resolution grid of multibeam data (q3_bathy6m) that had been smoothed over a 9-cell by 9-cell rectangle using the "focalmedian" routine. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1994 Ending_Date: 1998 Currentness_Reference: publication date Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -70.826562 East_Bounding_Coordinate: -70.600055 North_Bounding_Coordinate: 42.624645 South_Bounding_Coordinate: 42.441719 Keywords: Theme: Theme_Keyword_Thesaurus: General Theme_Keyword: bathymetry Theme_Keyword: contour Theme_Keyword: 1-meter contour Theme_Keyword: USGS Map I-2733 Theme_Keyword: western Massachusetts Bay Quadrangle 3 Theme_Keyword: polyline Theme_Keyword: sea floor Theme_Keyword: shapefile Theme_Keyword: Woods Hole Science Center Theme_Keyword: WHSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: oceans and estuaries Theme_Keyword: oceans and coastal Theme_Keyword: elevation Place: Place_Keyword_Thesaurus: General Place_Keyword: Massachusetts Bay Place_Keyword: western Massachusetts Bay Place_Keyword: Boston Place_Keyword: Massachusetts Place_Keyword: Stellwagen Basin Place_Keyword: Gloucester Place_Keyword: Gulf of Maine Place_Keyword: United States Place_Keyword: North Atlantic Ocean Access_Constraints: None Use_Constraints: These data are not to be used for navigation purposes. Mariners should refer to the appropriate nautical chart. 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_Organization_Primary: Contact_Organization: U.S. Geological Survey Contact_Person: Bradford Butman 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: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2212 Contact_Facsimile_Telephone: (508) 457-2309 Contact_Electronic_Mail_Address: bbutman@usgs.gov Hours_of_Service: 8 a.m. - 5 p.m. Native_Data_Set_Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.1.1332 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: Data were verified by plotting over acquired bathymetric data and visually matching contours with depth values. Logical_Consistency_Report: These data are logically consistent. Completeness_Report: The multibeam bathymetric data, on which these contours are based, were corrected for tidal elevation during the survey using sea level measured at the NOAA Boston tide gage. This assumes that the tidal elevation and phase are the same as Boston across the survey area. Further processing to correct for the spatial and temporal changes in tidal elevation across the survey area may be undertaken at a later time. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: These data were navigated with a Differential Global Positioning System (DGPS); they are accurate to +/- 3 meters, horizontally. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: These data have been corrected for vessel motion (roll, pitch, heave, yaw) and tidal offsets, and referenced to mean lower low water. The theoretical vertical resolution of the Simrad EM-1000 multibeam echosounder is 1 % of water depth, approximately 0.3 - 1.0 m within the study area. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: U.S. Geological Survey Publication_Date: 2007 Title: Q3_BATHY6M - 6 meter grid of the Quad3 multibeam bathymetry for western Massachusetts Bay Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Data Series Issue_Identification: 99 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/ds/99/massbay_gis/2_multibeam/grids/q3_bathy6m.zip Online_Linkage: http://pubs.usgs.gov/ds/99/webpages/quad3.html Larger_Work_Citation: Citation_Information: Originator: Butman, Bradford Originator: Valentine, Page C. Originator: Middleton, Tammie J. Originator: Danforth, William W. Publication_Date: 2007 Title: A GIS Library of Multibeam Data for Massachusetts Bay and the Stellwagen Bank National Marine Sanctuary, Offshore of Boston, Massachusetts Edition: 1.0 Series_Information: Series_Name: Data Series Issue_Identification: 99 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/ds/99/ Type_of_Source_Media: disc Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 1994 Ending_Date: 1998 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: q3_bathy6m Source_Contribution: Grid data contoured using Arc/Info. Process_Step: Process_Description: Bathymetric contours at 1-m intervals were derived from a 6-m resolution grid of multibeam bathymetry using the "latticecontour" routine. The 6-m grid (q3_bathy6m) was smoothed over a 9-cell by 9-cell rectangular using the "focalmedian" function in ARCGRID. The contours were converted to a shapefile in ArcGIS. Source_Used_Citation_Abbreviation: q3_bathy6m Process_Date: 200702 Source_Produced_Citation_Abbreviation: q3_1mctr.shp Source_Produced_Citation_Abbreviation: q3_1mctr.dbf Source_Produced_Citation_Abbreviation: q3_1mctr.shx Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: William Danforth Contact_Organization: U.S. Geological Survey Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2274 Contact_Facsimile_Telephone: (508) 457-2310 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: 3951 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.000000 Longitude_Resolution: 0.000000 Geographic_Coordinate_Units: Decimal degrees 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 Vertical_Coordinate_System_Definition: Depth_System_Definition: Depth_Datum_Name: Mean lower low water Depth_Resolution: 0.5 Depth_Distance_Units: Meters Depth_Encoding_Method: Explicit depth coordinate included with horizontal coordinates Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: q3_1mctr 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: internal number of the start x,y coordinate pair for the arc Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 6741 Attribute_Units_of_Measure: integer Attribute: Attribute_Label: TNODE_ Attribute_Definition: internal number of the end x,y coordinate pair for the arc Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2 Range_Domain_Maximum: 6741 Attribute_Units_of_Measure: integer Attribute: Attribute_Label: RPOLY_ Attribute_Definition: internal number of the polygon to the right of the arc Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 2 Attribute_Units_of_Measure: integer Attribute: Attribute_Label: LPOLY_ Attribute_Definition: internal number of the polygon to the left of the arc Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 1 Range_Domain_Maximum: 2 Attribute_Units_of_Measure: integer Attribute: Attribute_Label: LENGTH Attribute_Definition: length of the arc Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6359 Range_Domain_Maximum: 2137.8647 Attribute_Units_of_Measure: meters Attribute: Attribute_Label: CONTOUR Attribute_Definition: depth in meters of bathymetric contour Attribute_Definition_Source: USGS Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 84 Attribute_Units_of_Measure: meters Attribute_Measurement_Resolution: 1 Distribution_Information: Distributor: 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 Road City: Woods Hole State_or_Province: Massachusetts Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2212 Contact_Facsimile_Telephone: (508) 457-2309 Contact_Electronic_Mail_Address: bbutman@usgs.gov Hours_of_Service: 8 a.m. to 5 p.m. EST Resource_Description: Downloadable Data Distribution_Liability: Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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: SHP Format_Version_Number: 3.3 Format_Specification: ESRI polyline shapefile Format_Information_Content: Zip archive file containing the follow items. 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 "data set name".shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip archive Transfer_Size: 22.428 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/ds/99/massbay_gis/2_multibeam/bathymetry/q3_1mctr.zip Access_Instructions: Data may be downloaded via the World Wide Web. 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. Distribution_Information: Distributor: Contact_Information: Contact_Organization_Primary: Contact_Organization: U.S. Geological Survey Information Services Contact_Address: Address_Type: mailing address Address: Box 25286 Denver Federal Center City: Denver State_or_Province: Colorado Postal_Code: 80225-0046 Country: USA Contact_Voice_Telephone: (303) 202-4700 Contact_Facsimile_Telephone: (303) 202-4188 Hours_of_Service: 8 a.m. to 5 p.m. Mountain Time Resource_Description: Downloadable Data Distribution_Liability: Although these data have been used by the U.S. Geological Survey (USGS), U.S. Department of the Interior (DOI), no warranty expressed or implied is made by the U.S. Geological Survey as to the accuracy of the data. 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: SHP Format_Version_Number: 3.3 Format_Specification: ESRI polyline shapefile Format_Information_Content: Zip archive file containing the follow items. 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 "data set name".shp.xml. An ASCII version of the metadata file. A browse graphic showing the data layer coverage and extent (optional). File_Decompression_Technique: zip archive Transfer_Size: 22.428 Digital_Transfer_Option: 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: 20070327 Metadata_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 Road City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Country: USA Contact_Voice_Telephone: (508) 548-8700 x2212 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: bbutman@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