Metadata: Identification_Information: Citation: Citation_Information: Originator: Elizabeth Pendleton Publication_Date: 2013 Title: 30-m Topography and bathymetry grid produced from swath interferometric, multibeam, and lidar datasets (navd_bath_30m Esri binary grid, UTM Zone 19N, WGS84) Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1157 Publication_Information: Publication_Place: Woods Hole Coastal and Marine Science Center, Woods Hole, MA Publisher: U.S. Geological Survey, Coastal and Marine Geology Program Online_Linkage: https://doi.org/10.3133/ofr20121157 Online_Linkage: http://pubs.usgs.gov/of/2012/1157/GIS_catalog/SourceData/bathy/bathy_30m.zip Larger_Work_Citation: Citation_Information: Originator: Pendleton, E.A. Originator: Baldwin, W.E. Originator: Barnhardt, W.A. Originator: Ackerman, S.D. Originator: Foster, D.S. Originator: Andrews, B.D. Originator: Schwab, W.C. Publication_Date: 2013 Title: Shallow Geology, Sea-floor Texture, and Physiographic Zones of the Inner Continental Shelf from Nahant to Northern Cape Cod Bay, Massachusetts Series_Information: Series_Name: Open-File Report Issue_Identification: 2012-1157 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2012/1157/ Description: Abstract: These data are qualitatively derived interpretive polygon shapefiles and selected source raster data defining surficial geology, sediment type and distribution, and physiographic zones of the sea floor from Nahant to Northern Cape Cod Bay. Much of the geophysical data used to create the interpretive layers were collected under a cooperative agreement among the Massachusetts Office of Coastal Zone Management (CZM), the U.S. Geological Survey (USGS), Coastal and Marine Geology Program, the National Oceanic and Atmospheric Administration (NOAA), and the U.S. Army Corps of Engineers (USACE). 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 seafloor geology are important first steps toward protecting fish habitat, delineating marine resources, and assessing environmental changes because of natural or human effects. The project is focused on the inshore waters of coastal Massachusetts. Data collected during the mapping cooperative involving the USGS 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 interpretations released in this study are for an area extending from the southern tip of Nahant to Northern Cape Cod Bay, Massachusetts. A combination of geophysical and sample data including high resolution bathymetry and lidar, acoustic-backscatter intensity, seismic-reflection profiles, bottom photographs, and sediment samples are used to create the data interpretations. Most of the nearshore geophysical and sample data (including the bottom photographs) were collected during several cruises between 2000 and 2008. More information about the cruises and the data collected can be found at the Geologic Mapping of the Seafloor Offshore of Massachusetts Web page: http://woodshole.er.usgs.gov/project-pages/coastal_mass/. Purpose: This topographic and bathymetric grid was created as a single continuous surface of the shoreline and sea floor from Salisbury Beach to Northern Cape Cod Bay. These data in both this final form and at the input resolutions helped define the sediment texture and distribution maps presented as interpretive data layers in USGS OFR 2012-1157. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19940101 Ending_Date: 20080507 Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: None planned Spatial_Domain: Bounding_Coordinates: West_Bounding_Coordinate: -71.082734 East_Bounding_Coordinate: -69.754817 North_Bounding_Coordinate: 43.254179 South_Bounding_Coordinate: 41.918875 Keywords: Theme: Theme_Keyword_Thesaurus: USGS Metadata Identifier Theme_Keyword: USGS:bb3c5bd6-855f-4bd8-b55b-4b0755b491de Theme: Theme_Keyword_Thesaurus: None Theme_Keyword: U.S. Geological Survey Theme_Keyword: USGS Theme_Keyword: Woods Hole Coastal and Marine Science Center Theme_Keyword: WHCMSC Theme_Keyword: Coastal and Marine Geology Program Theme_Keyword: CMGP Theme_Keyword: SEA Ltd Swathplus interferometric sonar Theme_Keyword: bathymetry Theme_Keyword: topography Theme_Keyword: elevation Theme_Keyword: Esri grid Theme_Keyword: lidar Theme_Keyword: multibeam bathymetry Theme_Keyword: seamless surface Theme_Keyword: SHOALS-1000T Theme_Keyword: Simrad Subsea EM1000 Theme_Keyword: RESON SeaBat 8101 Theme_Keyword: U.S. Geological Survey Open-File Report 2005-1048 Theme_Keyword: U.S. Geological Survey Open-File Report 2005-1293 Theme_Keyword: U.S. Geological Survey Open-File Report 2007-1373 Theme_Keyword: U.S. Geological Survey Open-File Report 2006-1008 Theme_Keyword: U.S. Geological Survey Open-File Report 2009-1072 Theme_Keyword: U.S. Geological Survey Open-File Report 2010-1006 Theme_Keyword: U.S. Geological Survey Data Series 99 Theme_Keyword: SAIC 05-TR-017 Theme_Keyword: Hydrographic Survey H11421 Theme_Keyword: Hydrographic Survey F00508 Theme: Theme_Keyword_Thesaurus: ISO 19115 Topic Category Theme_Keyword: oceans Theme_Keyword: geoscientificInformation Theme_Keyword: imageryBaseMapsEarthCover Theme_Keyword: elevation Theme: Theme_Keyword_Thesaurus: USGS Thesaurus Theme_Keyword: bathymetry Theme_Keyword: topography Theme_Keyword: sea-floor characteristics Theme_Keyword: interferometric sonar Theme_Keyword: multibeam sonar Theme_Keyword: lidar Theme_Keyword: marine geophysics Theme_Keyword: geospatial datasets Place: Place_Keyword_Thesaurus: None Place_Keyword: Massachusetts Bay Place_Keyword: Atlantic Ocean Place_Keyword: Boston Harbor Place_Keyword: Nahant Place_Keyword: Boston Place_Keyword: Hull Place_Keyword: Boston Harbor Islands Place_Keyword: Duxbury Place_Keyword: Provincetown Place_Keyword: Plymouth Place_Keyword: Scituate Place_Keyword: Cohasset Place_Keyword: Manomet Place_Keyword: Winthrop Place_Keyword: Cape Cod Bay Place_Keyword: Jeffreys Ledge Place_Keyword: Tillies Bank Place_Keyword: Massachusetts Bay Disposal Site Place_Keyword: Stellwagen Bank Place_Keyword: Stellwagen Bank National Marine Sanctuary Place_Keyword: Gulf of Maine Place_Keyword: Bigelow Bight Place_Keyword: Merrimack River Place_Keyword: Ipswich Bay Place_Keyword: Cape Ann Place_Keyword: Salisbury Beach Place_Keyword: Plum Island Place_Keyword: Salem Sound Place_Keyword: Gloucester Place_Keyword: South Essex Ocean Estuary Place_Keyword: North America Stratum: Stratum_Keyword_Thesaurus: None Stratum_Keyword: Seafloor Stratum_Keyword: sea floor Access_Constraints: None Use_Constraints: Not to be used for navigation. 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: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: 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 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Browse_Graphic: Browse_Graphic_File_Name: http://pubs.usgs.gov/of/2012/1157/GIS_catalog/SourceData/bathy/BATHY_browse.png Browse_Graphic_File_Description: Topographic and Bathymetric grid Browse_Graphic_File_Type: PNG Native_Data_Set_Environment: Microsoft Windows 7.1 (Build 7601) Service Pack 1; ESRI ArcCatalog 9.3.1.4000 Data_Quality_Information: Logical_Consistency_Report: This topographic and bathymetric grid was created from several smaller bathymetry and lidar datasets that were processed and published in various formats and datums (see Source Information for the individual input data). In order to create a seamless topographic and bathymetric surface, VDATUM was used to bring all the data to a common vertical datum (NAVD88), and all formats and resolutions were resampled and merged into a 30-m Esri format grid. No further data processing was conducted on the individual input datasets. These datasets are part of a larger mapping initiative: Gulf of Maine Mapping Initiative (GOMMI). The following website maintains a map that shows the extent of the high resolution bathymetric surveys, the organizations that collected them, and a geographical name description of the area covered. http://www.gulfofmaine.org/gommi/coverage-map.php You can also download the source data listed in the source contribtutions from this page. Completeness_Report: This grid includes swath interferometric, multibeam, and lidar data collected during several cruises in the Gulf of Maine. The input grids can be downloaded by visiting the publications listed in the Source Information, or by visiting the Gulf of Maine Mapping Initiative website: http://www.gulfofmaine.org/gommi/coverage-map.php Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: The horizontal accuracy of the source multibeam bathymetry (DGPS) is reported at +/- 3 meters. The horizontal accuracy of the swath bathymetry (DGPS and/or RTK-GPS) is conservatively estimated to be +/- 10m. The lidar data was collected to meet the +/- 3-m accuracy specification. This composite topographic and bathymetric grid is assumed to be horizontally accurate to within 20-meters, as additional errors could have been introduced during resampling, vertical and horizontal reprojections, and mosaicking. Vertical_Positional_Accuracy: Vertical_Positional_Accuracy_Report: The vertical accuracy of the source multibeam bathymetry (Simrad EM-1000 and the Reson Seabat 8101) is reported at +/- 30 to 50-cm. The vertical accuracy of the swath bathymetry is estimated to be +/- 0.1 to 0.6-m. The lidar data was collected to meet the +/- 30-cm accuracy specification. This composite topographic and bathymetric grid is assumed to be vertically accurate to within 1-m, as additional errors could have been introduced during resampling, vertical and horizontal reprojections, and mosaicking. Lineage: Source_Information: Source_Citation: Citation_Information: Originator: Ackerman, S.D. Originator: Butman, B. Originator: Barnhardt, W.A. Originator: Danforth, W.W. Originator: Crocker, J.M. Publication_Date: 2006 Title: High-resolution Geologic Mapping of the Inner Continental Shelf: Boston Harbor and Approaches, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data 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/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20000919 Ending_Date: 20011101 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Ackerman and others (2006) Source_Contribution: This report provided the source bathymetry data for the Boston Harbor and approaches region. These geophysical data were acquired between 2000 and 2001 by NOAA aboard the Ship Whiting and its launches. NOAA cruises acquired single-beam and multibeam bathymetric data. A hull-mounted RESON SeaBat 8101(240 kHz) was used to acquire the multibeam echosounder data. Single-beam echosounder data were acquired with an Odom Echotrac DF3200 MKII (100kHz). Source_Information: Source_Citation: Citation_Information: Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Baldwin, W.E. Originator: Barnhardt, W.A. Publication_Date: 2010 Title: Geophysical and Sampling Data from the Inner Continental Shelf: Northern Cape Cod Bay, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data 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/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20060816 Ending_Date: 20080507 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Andrews and others, 2010 Source_Contribution: This report provided the source bathymetry for the Northern Cape Cod Bay region. These data were acquired between 2006 and 2008 by the USGS and CZM aboard the R/V Megan T. Miller and R/V Rafael. Bathymetric data were acquired using a Systems Engineering & Assessment, Ltd. (SEA) SWATHplus interferometric sonar system (234 or 117 kHz). Source_Information: Source_Citation: Citation_Information: Originator: Barnhardt, W.A. Originator: Ackerman, S.D. Originator: Andrews, B.D. Originator: Baldwin, W.E. Publication_Date: 2010 Title: Geophysical and Sampling Data from the Inner Continental Shelf: Duxbury to Hull, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data 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/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20030820 Ending_Date: 20070502 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Barnhardt and others, 2010 Source_Contribution: This report provided the source bathymetry for the Duxbury to Hull, MA region. These data were acquired between 2006 and 2007 by the USGS, CZM, and NOAA aboard the R/V Megan T. Miller, R/V Rafael, and NOAA launches 1005 and 1014. USGS bathymetric data were acquired using a Systems Engineering & Assessment, Ltd. (SEA) SWATHplus interferometric sonar system (234 or 117 kHz). NOAA bathymetric data were acquired with a hull-mounted RESON SeaBat 3101 and 8125. Source_Information: Source_Citation: Citation_Information: Originator: Butman, B. Originator: Valentine, P.C. Originator: Middleton, T.J. Originator: Danforth, W.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 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Digital Data Series Issue_Identification: 99 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/ds/99/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19940101 Ending_Date: 19981231 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Butman and others, 2007 Source_Contribution: This report provided the source bathymetry for the western Massachusetts Bay region including Stellwagen Bank. These data were acquired between 1994 and 1998 by the USGS, Canadian Hydrographic Survey, and University of New Brunswick aboard the Frederick G. Creed. Bathymetric and backscatter data were acquired using Simrad Subsea EM 1000 Multibeam Echo Sounder. Source_Information: Source_Citation: Citation_Information: Originator: Barnhardt, W.A. Originator: Andrews, B.D. Originator: Ackerman, S.D. Originator: Baldwin, W.E. Originator: Hein, C.J. Publication_Date: 2009 Title: High-Resolution Geologic Mapping of the Inner Continental Shelf: Cape Ann to Salisbury Beach, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data 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/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20040223 Ending_Date: 20050916 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Barnhardt and others, 2009 Source_Contribution: This report provided the source bathymetry for the Salisbury Beach to Cape Ann, MA region. These data were acquired between 2004 and 2005 by the USGS, CZM, and NOAA and Science Applications International Corporation (SAIC) aboard the R/V Ocean Explorer and the R/V Connecticut. USGS bathymetric data were acquired using a Systems Engineering & Assessment, Ltd. (SEA) SWATHplus interferometric sonar system (234 or 117 kHz). NOAA (SAIC) bathymetric data were acquired with a hull-mounted RESON SeaBat 8101 (240 kHz). Source_Information: Source_Citation: Citation_Information: Originator: Barnhardt, W.A. Originator: Andrews, B.D. Originator: Butman, B. Publication_Date: 2006 Title: High-Resolution Geologic Mapping of the Inner Continental Shelf: Nahant to Gloucester, Massachusetts Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data 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/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20030924 Ending_Date: 20040508 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Barnhardt and others, 2006 Source_Contribution: This report provided the source bathymetry for the Nahant to Gloucester, MA region. These data were acquired between 2003 and 2004 by the USGS and CZM, aboard the R/V Rafael. USGS bathymetric data were acquired using a Systems Engineering & Assessment, Ltd. (SEA) SWATHplus interferometric sonar system (234 or 117 kHz). Source_Information: Source_Citation: Citation_Information: Originator: Poppe, L.J. Originator: Paskevich, V.F. Originator: Butman, B. Originator: Ackerman, S.D. Originator: Danforth, W.W. Originator: Foster, D.S. Originator: Blackwood, D.S Publication_Date: 2006 Title: Geological Interpretation of Bathymetric and Backscatter Imagery Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Open-File Report Issue_Identification: 2005-1048 Publication_Information: Publication_Place: Reston, VA Publisher: U.S. Geological Survey Online_Linkage: http://pubs.usgs.gov/of/2005/1048/ Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19940101 Ending_Date: 19981231 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Poppe and othes, 2006 Source_Contribution: This report provided the source bathymetry for the Outer Cape Cod region including. These data were acquired between 1994 and 1998 by the USGS, Canadian Hydrographic Survey, and University of New Brunswick aboard the Frederick G. Creed. Bathymetric and backscatter data were acquired using Simrad Subsea EM 1000 Multibeam Echo Sounder. Source_Information: Source_Citation: Citation_Information: Originator: National Oceanic and Atmospheric Administration (NOAA) Originator: University of New Hampshire (UNH) Publication_Date: 2005 Title: Gulf of Maine Mapping Initiative, Priority 1 Area Survey Report Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: SAIC Document Issue_Identification: 05-TR-017 Publication_Information: Publication_Place: 221 Third Street, Newport, Rhode Island, 02840 USA Publisher: Science Applications International Corporation Other_Citation_Details: Below a link is provided to both the raster digital data and the Survey Report. Online_Linkage: http://www.ngdc.noaa.gov/nndc/struts/results?op_0=eq&t=101378&s=8&d=70&d=75&d=76&d=74&d=73&d=72&d=81&d=82&d=85&d=86&d=79&no_data=suppress&v_0=NEW720 Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/MB/ocean/atlantic_surveyor/GOMMI05/multibeam/data/version1/metadata/GOMMI05.pdf Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050424 Ending_Date: 20050915 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: GOMMI survey Source_Contribution: This report provided the source bathymetry for the most offshore region of the grid. These data were acquired in 2005 by NOAA, UNH and SAIC aboard the M/V Atlantic Surveyor. Bathymetric data were acquired using RESON 2101 MBS system. Source_Information: Source_Citation: Citation_Information: Originator: National Oceanic And Atmospheric Administration (NOAA) Publication_Date: 2006 Title: Hydrographic Survey H11421 Descriptive Report Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Basic Hydrographic Survey Descriptive Report Issue_Identification: H11421 Publication_Information: Publication_Place: Silver Spring, MD Publisher: National Oceanic and Atmospheric Administration, National Ocean Service Other_Citation_Details: Below a link is provided to both the raster digital data and the Survey Descriptive Report. Online_Linkage: http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=H11421&t=101523&s=3&d=5&d=8&d=10&d=11&d=9&d=12&d=13&d=14&d=15&d=16&d=17&d=18&d=19&no_data=suppress Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/H10001-H12000/H11421/DR/H11421.pdf Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050731 Ending_Date: 20050807 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Hydrographic Survey H11421 Source_Contribution: This report provided the source bathymetry for the most offshore region of the grid.These data were acquired in 2005 by NOAA aboard the NOAA Ship Thomas Jefferson. Bathymetric data were acquired using a Odom Echotrac DF3200 MK II Echosounder and a Simrad EM1002 MBS. Source_Information: Source_Citation: Citation_Information: Originator: Joint Airborne LiDAR Bathymetry Center of Expertise Originator: U.S. Army Corps of Engineers Publication_Date: 2008 Title: Massachusetts LiDAR Grid Data in Coastal Areas Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Publication_Information: Publication_Place: San Diego, CA Publisher: Fugro Pelagos, Inc Type_of_Source_Media: digital raster data Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20070428 Ending_Date: 20070806 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Lidar Source_Contribution: The source lidar data for the very nearshore (< -5 m) region. Lidar (Light Detection and Ranging) data were acquired with a SHOALS-1000T (for hydrographic & topographic data) using the Joint Airborne LiDAR Bathymetry Center of Expertise (JALBTCX) lidar plane. These data were provided by Massachusetts CZM, who contracted the USACOE to collect the data. These data may be acquired by contacting czm: czm@state.ma.us Source_Information: Source_Citation: Citation_Information: Originator: National Oceanic And Atmospheric Administration (NOAA) Publication_Date: 2005 Title: Hydrographic Survey F00508 Descriptive Report Edition: 1.0 Geospatial_Data_Presentation_Form: raster digital data Series_Information: Series_Name: Basic Hydrographic Survey Descriptive Report Issue_Identification: F00508 Publication_Information: Publication_Place: Silver Springs, MD Publisher: National Oceanic and Atmospheric Adminstration (NOAA) Other_Citation_Details: Below a link is provided to both the raster digital data and the Survey Descriptive Report. Online_Linkage: http://www.ngdc.noaa.gov/nndc/struts/results?op_0=l&v_0=F00508&t=101523&s=3&d=5&d=8&d=10&d=11&d=9&d=12&d=13&d=14&d=15&d=16&d=17&d=18&d=19&no_data=suppress Online_Linkage: http://surveys.ngdc.noaa.gov/mgg/NOS/coast/F00001-F02000/F00508/DR/F00508.pdf Type_of_Source_Media: online Source_Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 20050802 Ending_Date: 20050808 Source_Currentness_Reference: ground condition Source_Citation_Abbreviation: Hydrographic Survey F00508 Source_Contribution: This report provided the source bathymetry for the most offshore region of the grid.These data were acquired in 2005 by NOAA aboard the NOAA Ship Thomas Jefferson. Bathymetric data were acquired using a Odom Echotrac DF3200 MK II Echosounder and a Simrad EM1002 MBS. Process_Step: Process_Description: Each source bathymetric or topographic data were imported into ArcGIS (v. 9.3.1) from their native format and converted to an Esri grid. The coarsest resolution of any input grid was 30-m, so that was the target resolution for the composite grid. For any source data that was higher than 30-m resolution, the grid was resampled to 30-m in ArcMap (version 9.3.1). Each individual dataset was also projected to UTM-zone 19 N (WGS-84 datum). The following sources were already WGS-84 UTM zone 19N Esri grids and required no transformation or format conversion before resampling: Barnhardt and others 2006; Ackerman and others, 2006; Barnhardt and others, 2009; Andrews and others, 2010; and Barndhardt and others, 2010. The Butman and others, 2007 grid was in NAD83 UTM zone 19N, so NAD_1983_To_WGS_1984_5 was used to transform the projection before resampling. Poppe and others, 2006 was an ASCII text grid (4-m), which was converted to an Esri grid using the ASCII to raster converter, and was transformed from NAD83 UTM zone 19N to WGS84 UTM Zone 19N using NAD_1983_To_WGS_1984_5. Both of the NOAA Hydrographic surveys (H11421 & F00508) were converted from .bag format to xyz text using the online conversion provided by the NOAA/NGDC website. The xyz files in NAD84 UTM Zone 19N were converted to Esri grids by first 'adding xy data' in ArcMap and then converting features to raster. The NAD_1983_To_WGS_1984_5 transformation was used to get the data into WGS84. The Lidar data were provided as GeoTiffs in GCS NAD83. The GeoTiffs were converted to Esri grids in ArcMap and were reprojected in ArcToolbox to UTM Zone 19N WGS84 using the NAD_1983_To_WGS_1984_5 transformation. Finally, the GOMMI (SAIC, UNH, and NOAA) survey was provided as a NAD83 GCS xyz file. The xyz file was converted to raster the same way that the NOAA hydro surveys were converted, and it was converted from GCS NAD83 using reproject in ArcToolBox and the NAD_1983_To_WGS_1984_5 transformation. Resampling for each source grid was done in ArcMap (version 9.3.1) using the 'Resample' tool. The output cell size for all the source grids was 30m and the Resampling technique was 'Bilinear'. Process_Date: 20120325 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: 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 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: The Lidar data was the only dataset that was in NADVD88 vertical coordinate system. All the other bathymetric surveys were published in MLLW. After resampling and mosaicking (using the 'mosaic to new raster tool with 32_bit_signed pixels and the blend method) all grids except the Lidar, the composite bathymetric Esri grid was converted to a shapefile using 'raster to feature'. Xtools (version 7.1.0) was used to add and populate x and y fields and export the attribute table to a text file. VDatum (v2.3.3) was used to convert the bathymetric surveys (soundings) to NAVD88 using the "Maine, New Hampshire, Massachusetts - Gulf of Maine, Version 01 (1983-2001) regional transformation grid." A new vertically adjusted xyz file was then converted to an Esri grid in ArcMap (version 9.3.1) using 'add xy data' and 'convert feature to raster'. Process_Date: 20120401 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: 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 x2259 Contact_Facsimile_Telephone: 508-457-2310 Contact_Electronic_Mail_Address: ependleton@usgs.gov Process_Step: Process_Description: After the lidar and composite bathymetry data were in Esri format, a common resolution (30m), and horizontal and vertical coordinate system (WGS84 UTM Zone 19 N and NAVD88), the ArcMap (v. 9.3.1) mosaic tool was used again to combine the data into one grid (with 32 bit signed pixel depth). 30-meters was chosen as the output resolution and the blend function was chosen for overlapping areas. Process_Date: 20120513 Process_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist 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 x2259 Contact_Facsimile_Telephone: (508)-457-2310 Contact_Electronic_Mail_Address: ependleton@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 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: 20151119 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: Grid Cell Row_Count: 4885 Column_Count: 3551 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: 30.000000 Ordinate_Resolution: 30.000000 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 Vertical_Coordinate_System_Definition: Altitude_System_Definition: Altitude_Datum_Name: North American Vertical Datum of 1988 Altitude_Resolution: 0.0001 Altitude_Distance_Units: meters Altitude_Encoding_Method: Implicit coordinate Depth_System_Definition: Depth_Datum_Name: North American Vertical Datum of 1988 Depth_Resolution: 0.0001 Depth_Distance_Units: meters Depth_Encoding_Method: Implicit coordinate Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: Geologist Contact_Address: Address_Type: mailing and physical address Address: 384 Woods Hole Rd. City: Woods Hole State_or_Province: MA Postal_Code: 02543-1598 Contact_Voice_Telephone: (508) 548-8700x2259 Contact_Facsimile_Telephone: (508) 457-2310 Contact_Electronic_Mail_Address: ependleton@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: AIG Format_Version_Number: ArcGIS 9.3.1 Format_Specification: Esri grid Format_Information_Content: The zip file contains a folder with a Esri binary grid of bathymetric data at 30-meter resolution and the associated metadata File_Decompression_Technique: Use WinZip or pkUnzip Transfer_Size: 29.6 Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: http://pubs.usgs.gov/of/2012/1157/GIS_catalog/SourceData/bathy/bathy_30m.zip Network_Resource_Name: http://pubs.usgs.gov/of/2012/1157/html/GIS_catalog.html Network_Resource_Name: http://pubs.usgs.gov/of/2012/1157/ Access_Instructions: Data can be downloaded via the World Wide Web (WWW) Fees: None Technical_Prerequisites: The grid contained in the ZIP file is available as an Esri binary grid. To utilize this data, the user must have a GIS software package capable of reading an Esri binary grid. Metadata_Reference_Information: Metadata_Date: 20240318 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Elizabeth A. Pendleton Contact_Organization: U.S. Geological Survey Contact_Position: 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 x2259 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 Metadata_Access_Constraints: None Metadata_Use_Constraints: None