U.S. Geological Survey 2004 1.0 vector digital data Open-File Report 2005-1048 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/cc_multibeam_98015.zip http://pubs.usgs.gov/of/2005/1048/htmldocs/data_catalog.htm L.J. Poppe V.F. Paskevich B. Butman S.D. Ackerman W.W. Danforth D.S. Foster D.S. Blackwood 2006 1.0 Open-File Report 2005-1048 Woods Hole Science Center, Woods Hole, MA U.S. Geological Survey, Coastal and Marine Geology Program http://pubs.usgs.gov/of/2005/1048/ cc_multibeam_98015http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/ This data set includes an outline of the multibeam bathymetric and backscatter dataset offshore of Cape Cod, Massachusetts. The multibeam data were collected with a multibeam sea floor mapping system during USGS survey 98015, conducted November 9 - 25, 1998. The surveys were conducted using a Simrad EM 1000 multibeam echo sounder mounted aboard the Canadian Coast Guard vessel Frederick G. Creed. This multibeam system utilizes 60 electronically aimed receive beams spaced at intervals of 2.5 degrees that insonify a strip of sea floor up to 7.5 times the water depth (swath width of 100 to 200 m within the survey area). The horizontal resolution of the beam on the sea floor is approximately 10% of the water depth. Vertical resolution is approximately 1 percent of the water depth. To release a digital outline of a multibeam bathymetric and backscatter dataset from off Cape Cod. en 2006 publication date Complete None planned -70.301563 -69.837144 42.112872 41.616669 -70.301563-69.83714441.61666942.112872 General U.S Geological Survey USGS Coastal and Marine Geology Program CMGP Woods Hole Science Center WHSC Field Activity Number 98015 Frederick G. Creed Sea Floor Mapping Seafloor Mapping multibeam survey survey outline ArcView shapefile General Cape Cod Massachusetts East Coast United States North America Atlantic Ocean None Public domain data are freely redistributable with proper metadata and source attribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/cc_multibeam_98015-thumb.gif Thumbnail image showing the extent and coverage of the data layer. GIF http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/cc_multibeam_98015.gif Image map showing the extent and coverage of the data layer. GIF Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722 Shapefile No additional checks for topological consistency were performed on this data. These data are complete; no further processing and(or) modifications will be made. 19981109 19981125 ground condition capenorthmos_geo4m-wgs84.tif The original multibeam backscatter data acquired with a Simrad EM 1000 echosounder during USGS cruise 98015 aboard the Canadian Coast Guard vessel Frederick G. Creed was compiled to create the 4-m digital mosaic. The extent completed mosaic was traced to create the survey outline. 19981109 19981125 ground condition capesouthmos_geo4m-wgs84.tif The original multibeam backscatter data acquired with a Simrad EM 1000 echosounder during USGS cruise 98015 aboard the Canadian Coast Guard vessel Frederick G. Creed was compiled to create the 4-m digital mosaic. The extent completed mosaic was traced to create the survey outline. The multibeam imagery was imported into the ArcView GIS project view. The multibeam imagery was outlined using the available graphic tools then converted to an ArcView shapefile. capenorthmos_geo4m_wgs84.tif 2004 capenorthout.dbf capenorthout.shp capenorthout.shx Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2281 (508) 457-2310 lpoppe@usgs.gov The multibeam imagery was imported into the ArcView GIS project view. The multibeam imagery was outlined using the available graphic tools then converted to an ArcView shapefile. capesouthmos_geo4m_wgs84.tif 2004 capesouthout.dbf capesouthout.shp capesouthout.shx Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2281 (508) 457-2310 lpoppe@usgs.gov The previously created northern and southern halves of the survey were combined to create a single shapefile showing the extent and coverage of the USGS multibeam survey 98015. capenorthout.dbf capenorthout.shp capenorthout.shx capesouthout.dbf capesouthout.shp capesouthout.shx 20060309 cc_multibeam_98015.dbf cc_multibeam_98015.shp cc_multibeam_98015.shx Valerie Paskevich U.S. Geological Survey GIS Coordinator mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2281 (508) 457-2310 vpaskevich@usgs.gov Vector G-polygon 1 SimplePolygonFALSE1FALSEFALSE 0.00000001 0.00000001 Decimal degrees World Geodetic System 84 World Geodetic System 84 6378137.000000 298.257224 GCS_WGS_1984 cc_multibeam_98015 Shapefile Attribute Table ESRI Feature Class1 FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. ID Number8 AREA Area of polygon in native units. USGS Number163 PERIMETER Perimeter of polygon in native units. USGS Number163 Extent and coverage of USGS/CMGP multibeam cruise 98015 off Cape Cod, MA. Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2314 (508) 457-2310 lpoppe@usgs.gov Downloadable Data: Outline of the multibeam survey completed during the U.S. Geological Survey (USGS), Coastal and Marine Geology Program (CMGP), Woods Hole Science Center (WHSC) cruise 98015 Although all data have been used by the USGS, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. 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. SHP 3.3 ESRI Polygon Shapefile 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). no compression applied 0.036 0.036 http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/cc_multibeam_98015.zip http://pubs.usgs.gov/of/2005/1048/htmldocs/data_catalog.htm http://pubs.usgs.gov/of/2005/1048/data/basemaps/boundaries/surveys/ Data are downloadable via the World Wide Web (WWW). DVD-ROM 4.75 Gbytes UDF None 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 importing data. A free data viewer, ArcExplorer, capable of displaying the data is available from ESRI at www.esri.com. 2006 20060317 Lawrence J. Poppe U.S. Geological Survey Geologist mailing and physical address

384 Woods Hole Road

Woods Hole MA 02543-1598 USA (508) 548-8700 x2318 (508) 457-2310 lpoppe@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time None None enhttp://www.esri.com/metadata/esriprof80.htmlESRI Metadata Profile Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.1.0.722cc_multibeam_98015-70.301563-69.83714442.11287241.6166691-70.301563-69.83714442.11287241.6166691ISO 19115 Geographic Information - MetadataDIS_ESRI1.0dataset002file://\\FLORIDA-DESKTOP\OFR2005_1048\web-content\data\basemaps\boundaries\surveys\cc_multibeam_98015.shpLocal Area Network0.036ShapefileGCS_WGS_198412006032213323300200603221332330020060322